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Use the set command to set the value of a specified attribute of a LightStream 2020 multiservice ATM switch (LS2020 switch), or to set the state of the CLI program. The first argument of the command defines families of set commands. The command families are given in the following list, together with the titles of the sections of this chapter in which they are discussed:
| set card | |
| set chassis | |
| set cli | |
| set collection | |
| set config | |
| set modem | |
| set nettime | |
| set pid | |
| set port | Port Attributes (including traffic filters, traffic profiles, and multicast groups) |
| set snmp | |
| set stb | |
| set tcs | |
| set trap |
Note The set command requires protected mode for the set modem, set tcs, set trap, set port c.p np-deliver, and the set port c.p stp-traffic commands only. See the protected command in the chapter entitled "CLI Control Commands."
Many of the attributes that you can set with the CLI can also be set using the StreamView configuration tools on your network management workstation. For some tasks you may find StreamView's graphical user interface (GUI) easier to use than the CLI. See the LightStream 2020 Configuration Guide for information on using the GUI configuration tools, and for detailed descriptions of attributes that you can set with the GUI configuration tools and with CLI.
Note The set command requires that the read/write community name be set first to a name that has been assigned the value write in the mma.communities file (unless parameter1 is cli, modem, or snmp). Because the default community name "public" is read only, the set command fails if the read/write community name has not been set first. For information on setting the read/write community, see the description of the command set snmp community in this chapter and in the LightStream 2020 Network Operations Guide.
Use the set card command family to set the administrative state of the card to active, inactive, or testing. Use it also to set the peak cell rate on a CLC card configured for 4-port T3/E3 trunk or 1-port OC-3c trunk operation.
The set card commands require a card number (in the range 1-10) as an argument.
Use the set card card# active command to set the administrative state of the specified card to active.
When the card is set active from some other state, card parameters are set to defaults, then overwritten from on-board memory (if temporary changes were made) and from the configuration database, in that order. The result can be a combination of defaults, "temporary" changes, and database settings, depending upon which parameters were set in EEPROM and in the configuration database.
Note After a power reset or reboot of the node, the operational status of a card may be down while its administrative status and configuration register values are both up. To bring the card up in these circumstances, set it to inactive and then to active.
Use the set card card# inactive command to set the administrative state of the specified card to inactive.
Note Do not use the Verify function of the configurator when a card is set to inactive. The Verify function copies attribute values from run-time memory. When a card is inactive (or down for any reason), the Verify function can access only the card's type, number, and administrative status. If you choose to write values to the local database, the Verify function deletes all other configured attribute values stored there. See the Lightstream 2020 Configuration Guide for details about the Verify function.
Use the set card card# testing command to set the administrative state of the specified card to testing. This is done during some troubleshooting procedures. This command is of interest primarily to support personnel and developers.
Note The test command is the preferred way to run card diagnostics from the CLI. It automatically sets the card state to testing.
Use the set card card# peak-cell-rate rate command to set the peak per-port cell rate (in cells per second) for a 4-port T3/E3 or a 1-port OC-3c trunk card. The value of rate must be in the range 0 - 446,000. Use this parameter to ensure that ATM traffic over a virtual path connection (VPC) does not exceed the maximum rate enforced in an ATM hub or network through which the VPC passes. This maximum cell rate applies to all ports on the card.
Use the set chassis command family to set values of specified chassis attributes. For constraints among the various IP addresses and masks, refer to the LightStream 2020 Network Operations Guide and the LightStream 2020 Configuration Guide.
The arguments of the set chassis command are given in the following paragraphs.
Use the set chassis activeip IPaddress command to set the IP address that is used to communicate network management traffic between this node and other LS2020 nodes in the network, and between the active NP and the backup NP in a node with redundant NPs. When an NP becomes the active NP in the chassis, it uses this address.
This address is made known to both NPs and to all nodes in the LS2020 network. For one to connect to this address via a host or router outside the LS2020 network, the address must be included in the static routing table on that host or router.
Use the set chassis secondaryip IPaddress command to set the IP address that is used to communicate network management traffic between the backup NP and the active NP in a node with redundant NPs. When one NP becomes the active NP in the chassis, the other NP uses this address.
This address is made known to both NPs in a redundant system. Although there is seldom any need to connect to it, it is also made known to all nodes in the LS2020 network. For one to connect to this address via a host or router outside the LS2020 network, the address must be included in the static routing table on that host or router.
Use the set chassis congestion commands to set three time values used to control congestion avoidance operations. Use the set chassis congestion maxpermitinterval microseconds command to set the maximum interval, in microseconds, during which trunk cards and outgoing edge cards can report permit limits. Use the set chassis congestion minpermitinterval microseconds command to set the minimum interval, in microseconds, during which trunk cards and outgoing edge cards can report permit limits. Use the set chassis congestion mincainfointerval microseconds command to set the minimum interval, in microseconds, during which congestion avoidance processes can distribute aggregated congestion avoidance updates to input edge cards.
Use the set chassis consoletraplevel level command to set the console trap reporting threshold (the level of traps that are reported by this node to the console). The control of traps reported to the console is independent of the control of traps that are reported to the NMS (see set chassis traplevel and set cli traplevel). The trap levels are as follows:
Each trap level is progressively more inclusive: the info level includes oper traps, the trace level includes info and oper traps, and the debug level includes all traps. See the LightStream 2020 Traps Reference Manual for information about trap levels.
There must be a compelling reason to use any argument other than off, info, or oper. Instead of the trace or debug argument, use the set trap command for individual traps. By doing this, you avoid flooding the node with traps, which could degrade performance.
Use the set chassis defrouter IPaddress command to set the default router address for network management traffic originating at the local NP. This address is used in the absence of any other routing information for such traffic.
Use the set chassis ethernetaddr OBLANaddress command to set the Ethernet address for the on-board Ethernet LAN interface of the NP. It is used by whichever NP is active. Not all LS2020 nodes need an Ethernet connection.
Use the set chassis ethernetmask mask command to set the subnet mask for the on-board Ethernet LAN interface of the NP.
Use the set chassis name chassis_name command to set the chassis name (node name). The name may be any alphanumeric string up to 39 characters long.
Use the set chassis netmask mask command to set the subnet mask for the active and secondary IP addresses. This mask must be the same for every NP in the LS2020 network.
Use the set chassis primaryswitch {sa | sb} command to establish the specified switch card (SA or SB) as the primary or active switch. The other switch card becomes the inactive backup switch. (With Release 1 switch cards, this command causes the chassis to reboot.)
Use the set chassis traplevel level command to set the chassis trap reporting threshold (the level of traps that are reported for this node). This is independent of what is reported to the console (see set chassis consoletraplevel) and what is reported to the CLI or NMS (see set cli traplevel). The trap levels are as follows:
Each trap level is progressively more inclusive: the info level includes oper traps, the trace level includes info and oper traps, and the debug level includes all traps. See the LightStream 2020 Traps Reference Manual for information about trap levels.
There must be a compelling reason to use any argument other than info or oper. Instead of the trace or debug argument, use the set trap command for individual traps. By doing this, you avoid flooding the node with traps, which could degrade performance.
Use the set chassis traplog {on | off} command to control the logging of traps in the file mma.traplog. The default state, when node software is started, is to log traps.
Use the set cli command family to set values of specified CLI attributes.
Use the set cli debug {on | off} command to set the debug flag. If the debug flag is on, additional information about the course of command execution is displayed, including the names of MIB variables as they are queried or set, and each trap message becomes quite verbose. This command is of interest only to developers and support personnel.
Use the set chassis echosource {on | off} command to turn the echoing of sourced commands on or off. The default is to display shell commands as they are executed under the source command (see the chapter entitled "CLI Control Commands").
Use the set chassis lineedit {on | off} command to turn line editing capability on or off. When this function is turned on, CLI command lines can be edited with control keys (see the LightStream 2020 Network Operations Guide).
Use the set cli log {"logfile" | off} command to record a copy of all user input and CLI output that is displayed on the screen in the current CLI session.
Note Always surround the file name or pathname of logfile with quotation marks, as in the
following example:
cli> set cli log "cli.log.9502"
If you fail to do so, the CLI reports a syntax error.
This command turns the CLI logging function on and directs its output to the specified file logfile. If logfile is not in the current working directory (usually the same directory as the user account you are using), you must enter the full pathname of the file. All user input and output of the current CLI session is copied to logfile until you either turn the logging function off with the set cli log off command or exit the CLI. (The log file cannot be displayed until the logging function has been turned off.) If you re-open the same log file, output from the new session is appended to the previously logged session output.
Use the set cli retries retries command to specify the number of times the CLI repeats an SNMP request if no response is received to the first attempt. The value of retries must be in the range 0 - 10 (the default is 0). CLI's retries value interacts as follows with the timeout value set by the command "set cli timeout": (retries + 1) * timeout = maximum interval, in seconds, between the entry of a command and its result. Thus, for example, if you set retries to 2 and timeout to 10, you may wait up to 30 seconds for the results of a command and a new CLI prompt. If you experience SNMP timeout errors, increasing the retries value may be helpful.
Use the set cli term termtype command to set the terminal type to termtype. See the file /etc/termcap for acceptable values.
Use the set cli timeout seconds command to specify the time that CLI waits for a response after issuing an SNMP request. The value of seconds must be in the range 6 - 200 (the default is 6). After waiting the specified number of seconds, CLI either times out and returns a new CLI prompt, or sends the request again, depending on the retry status. (See the command "set cli retries.") If you experience SNMP timeout errors, increasing the timeout value may be helpful.
Use the set cli timer command to reinitialize the timer that normally indicates time elapsed since the current CLI session was started.
Use the set cli timestamp {on | off} command to control the appearance of a timestamp after each CLI prompt. When this parameter is set on, a time stamp appears after each prompt, as an aid to tracking and reporting operational problems.
Use the set traplevel level command to set the CLI trap reporting threshold (the level of traps that are reported to the CLI and to an NMS). This is independent of what is reported to the console (see set chassis consoletraplevel) and what is reported by the chassis (see set chassis traplevel). The trap levels are as follows:
Each trap level is progressively more inclusive: the info level includes oper traps, the trace level includes info and oper traps, and the debug level includes all traps. See the LightStream 2020 Traps Reference Manual for information about trap levels.
There must be a compelling reason to use any argument other than off, info, or oper. Instead of the trace or debug argument, use the set trap command for individual traps. By doing this, you avoid flooding the node with traps, which could degrade performance.
Use the set collection command family to create, configure, or control a specified collection process. Such a process collects statistical counts of specified traffic or events that are recorded in specified MIB objects. See the LightStream 2020 Network Operations Guide for information about data collections and how to use them and monitor them.
You must first create a collection with the set collection n create command. If you attempt to use any of the other set collection commands before creating collection number n, an error message says there is no such collection.
Use the set collection n addvar MIB_object command to add MIB_object to the MIB objects whose values are included in the specified collection. Here, MIB_object must be a counter (see the chapter entitled "LightStream 2020 MIB Reference"), and collection number n must first have been created with the set collection n create command.
Use the set collection n create command to create collection number n. You must execute this command before any other set collection commands. Other parameters of the set collection command cannot be specified for a given collection until that collection has been created. Collection number n must first have been created with the set collection n create command.
Use the set collection n del command to remove collection number n from the system. Collection number n must first have been created with the set collection n create command.
Use the set collection n delvar MIB_object command to remove MIB_object from the set of objects whose values are included in collection number n. Collection number n must first have been created with the set collection n create command.
Use the set collection n halt command to suspend collection process number n. It may be started again with the set collection n start command any time before the time specified by the endtime argument (or with the filesize argument or the frequency argument). Collection number n must first have been created with the set collection n create command.
Use the set collection n start command to invoke collection number n. It may be halted and started any number of times in the time range specified by the begintime and endtime arguments (or with the filesize argument or the frequency argument). Collection number n must first have been created with the set collection n create command.
Use the set collection n begintime [[[[yy:]mm:]dd:]hh:mm:ss] command to set the time at which collection number n is available to be started with the start argument. The default beginning time is the current time. Here, yy is the year, mm is the month, dd is the day, and hh:mm:ss is the time of day. (This value can also be set with the filesize argument or the frequency argument.) Collection number n must first have been created with the set collection n create command.
Use the set collection n endtime [[[[yy:]mm:]dd:]hh:mm:ss] command to set the time at which collection number n is no longer available to be started with the start argument. Here, yy is the year, mm is the month, dd is the day, and hh:mm:ss is the time of day. The default ending time is 23:59:59 on December 31, 2037. (This value can also be set with the filesize argument or the frequency argument.) Collection number n must first have been created with the set collection n create command.
Use the set collection n filesize [KB] [: begintime [: endtime]] command to set the maximum size of the collection file in kilobytes, the time at which collection number n begins, and the time at which collection number n ends. The optional times begintime and endtime are in [[[yy:]mm:]dd:]hh:mm:ss format. The collection file is a circular file: when the collection data attains the configured file size limit, the collection process begins overwriting the data in the file from the beginning. The default file size is 100 KB. For the other defaults, see begintime and endtime. Collection number n must first have been created with the set collection n create command.
Use the set collection n frequency [ss [: begintime [: endtime]]] command to set the frequency (specified as ss seconds) at which collection is to be done, the time at which collection number n begins, and the time at which collection number n ends. The times begintime and endtime, in [[[yy:]mm:]dd:]hh:mm:ss format, are optional. The default frequency ss is 60 seconds. For the other defaults, see begintime and endtime. Collection number n must first have been created with the set collection n create command.
Note Making the value of n (the intervals between collections) too small may affect system response time.
Use the set config command family to control write access to the MMA configuration database on the node.
Note The set config commands require CLI protected mode. (See the protected command in the chapter entitled "CLI Control Commands.")
Use the set config lock command to lock the configuration database before setting parameters with CLI commands. When you use this command, all changes to configuration parameters are written to the disk, and other concurrent users are prevented from making configuration changes with CLI commands. The CLI issues a periodic reminder that the database is locked. The lock times out automatically 2 minutes after the termination of the CLI session in which the lock was issued.
This command is equivalent to the setsnmp mmaSetLock.0 3 command.
You can use the command setsnmp mmaSetLock.0 2 to lock the chassis (that is, its local database) without writing changes to the disk. This is useful for making experimental changes without interference from others. When setsnmp is used to set the mmaSetLock object to 2 or 3, the lock automatically times out after 2 minutes of no input from the user. However, with these commands, in contrast to the set config lock command, the CLI does not issue a periodic reminder that the chassis is locked.
A user of the CLI who attempts to use CLI set commands while the local configuration database is locked by any of these commands receives the following generic SNMP error message:
Limitations of SNMP preclude making this message more informative.
Note After you make configuration changes and write them to the disk, as described above, the local database is out of synch with the global database. As soon as possible, use the Verify function in the configuration tool on the network management station to copy configuration changes from the local configuration database on the LS2020 node to the global configuration database on the network management station. The Verify function retrieves the local settings and allows you to write them over the global values.
Use the set config unlock command to unlock the configuration database for changes made with CLI commands. Multiple users can concurrently make configuration changes with CLI commands, none of which are written to disk. By default, CLI commands affect configuration parameters in run-time memory only.
This command is equivalent to the setsnmp mmaSetLock.0 1 command.
Note Use the set config lock command before changing between trunk and any edge protocol with the set characteristics protocol command. This step is required because the card resets and the value is read back from the local configuration database during the card restart process.
Use the set modem command family to set the modem initialization string and modem password for the specified switch card.
Use the set modem switch initstring "modem_commands" command to set the modem initialization string to modem_commands for the specified switch card. The switch argument must be either sa or sb; it indicates whether the initialization string is to be configured for Switch Card A or Switch Card B. The modem initialization string modem_commands must be placed in quotation marks.
The modem initialization string is a sequence of modem commands specifying the state that a modem must assume in order to make a connection. The default string is in Hayes modem command format, as follows:
The Hayes-Format commands in the modem initialization string are as follows:
If the modem initialization string must be set for a modem that requires a different command format, the modem commands in it must put the modem in an equivalent state.
Use the set switch modem password password command to set the modem password to password for the specified switch card. The switch argument must be either sa or sb; it indicates whether the password is to be configured for Switch Card A or Switch Card B. When a connection is made to the node's modem port, a password prompt is issued and this password is required.
Note This command affects only the node on which the CLI is running when you execute it, regardless
of any target that has been set with the command set snmp hostname name.
The set modem command requires CLI protected mode. (See the protected
command in the chapter entitled "CLI Control
Commands.")
Use the set nettime command family to configure a preference table of clocking sources and to specify the switch card that distributes clocking to interface modules (line cards) that are capable of receiving it. If a clocking source fails, the software seeks clocking from each source in the table in turn until it finds a viable source. When it reaches the end of the table it defaults to the local oscillator on the switch card; it does not wrap to the top of the table.
Use the set nettime delete n command to delete the nth entry from the net time table.
Use the set nettime insert n clocking-source command to insert clocking-source as entry n in the clocking-source preference table. Position n must be empty in the table, either because it has not been specified with a previous use of set nettime prefer-table or set nettime insert, or because its value has been deleted with the set nettime delete command. The preference level n must be in the range 1 - 10, and clocking-source may be any of the following:
Use the set nettime prefer-table clocking-source1[, clocking-source2 ...] command to create the clocking-source preference table, specifying up to ten sources. The command overwrites any existing table and triggers a change to the clocking source specified at the top of the new table. The clocking sources are listed in the preference table in the same sequence in which the clocking-source arguments are specified; the tenth argument corresponds to preference level 10, the ninth to preference level 9, and so on. The clocking-source arguments may be any of the following:
You may specify a given clocking source at more than one place in the table. This is useful if you wish to re-try the most-preferred clocking source after trying each less-preferred source. For example, the following command creates a table specifying that the BITS plug should be re-tried after each of a series of ports on card 3:
This command specifies a preference table with a clocking source at each of the ten preference levels, as follows:
Use the set nettime reset-level n command to trigger a change to the clocking source which is specified as the nth entry in the clocking-preference table, where n is in the range 1 - 10. Use the command set nettime reset-level 1 to resume use of the clocking source specified at the top of the table if you believe it has become available again after being unavailable.
Note This command requires protected mode. (See the protected command in the chapter entitled "CLI Control Commands.")
Use the set nettime switch {sa | sb | auto} command to specify which switch card is to distribute clocking. With the auto argument, the node software selects whichever switch card is active. The sa or sb argument can be used to force selection of a particular switch card for diagnostic or other purposes.
Use the set pid command family to set the trap level or administrative status of a process.
Use the set pid PID adminstatus {active | inactive} command to set to active or inactive the administrative status (that is, the administratively preferred state) of process number PID. Whenever the operational status of process number PID changes, the system restores it to this preferred state as soon as it can.
Use the set pid PID traplevel level command to set the per-process trap reporting threshold (the level of traps that are reported for process number PID). The control of traps for a process is independent of the control of traps reported to the console (see set chassis consoletraplevel), and it is independent of the control of traps reported by the chassis (see set chassis traplevel).
The four trap levels are as follows:
Each trap level is progressively more inclusive: the info level includes oper traps, the trace level includes info and oper traps, and the debug level includes all traps. See the LightStream 2020 Traps Reference Manual for more information about trap levels and for information about the relationships among traps, PIDs, and processes.
There must be a compelling reason to use any argument other than info or oper. Instead of the trace or debug argument, use the set trap command for individual traps. By doing this, you avoid flooding the node with traps, which could degrade performance.
Use the set port command family to configure a port, to assign a traffic filter or traffic profile to a port, to create a multicast flow through a port, or to configure virtual LAN internetworking (VLI) workgroups.
The set port commands are described under the following headings:
These commands require a port identifier in dot-separated format c.p,where c is the number of a card and p is the number of a port on that card.
Many port attributes can be set only for a given port type. Table 1-1 lists the different port types. It gives the protocol and the card type of each port type (as displayed by show card commands) and the set port commands that may be used on it, listed under the titles of the sections of this document in which the commands are described.
Use the show chassis cards command to display the card types listed in Table 1-1; use the show card card# command to display the protocols listed in Table 1-1. See the LightStream 2020 Configuration Guide for information about the different configurable attributes of the various card types.
Table 1-1 Commands That Are Restricted to Certain Port and Card Types
Use the set port state command family to configure or modify the state of a port. The arguments are active, inactive, testing, loop, and unloop. Except as noted for the loop argument, these commands apply to every port type.
Set the administrative state of the specified port to active when it has been in the inactive state or the testing state. When the operational state of a card is active, the card is powered up and able to handle traffic.
The command in the following example makes port 5 on card 8 active:
Set the administrative state of the specified port to inactive. When the operational state is inactive, the card is powered down. To restore power to the card, use TCS commands or CLI set tcs commands.
Set the administrative state of the specified port to the testing state. When the operational state of the card is testing, the card is powered up but prevented from handling traffic, in the expectation that it will run diagnostics. The test command is the preferred way to set the port to the testing state.
Loop the specified port internally.
Note Internal looping of a Frame Relay UNI interface provides no useful diagnostic information
because the UNI protocol is asymmetric. To loop such a port, first convert it to an NNI interface, and
then use the set port c.p framerelay netinterfacetype nni command to set the Frame Relay net
interface type to NNI. A successful loop sets the administrative state of the port to testing and the
operational state to up. To set the Frame Relay net interface type to UNI again, use the
set port c.p framerelay netinterfacetype uni command.
Ethernet and FDDI ports cannot be looped.
Loop the specified port externally.
Use the set port c.p characteristics commands to configure or modify port characteristics. Some characteristics are limited to certain port types, as indicated in the descriptions of the individual commands.
For constant bit-rate (CBR) circuits and for T3 and E3 ports, use the set port c.p characteristics cable len length command to set the signal attenuation factor (line buildout) due to the electrical impedance of connective cabling. (For a CBR circuit using a CEMAC card, the command set port c.p characteristics cable db is an alternative.)
Several ranges are provided for each card type, as follows:
| Card Type | Feet of Cable |
|---|---|
The value of length is mapped to a range that is appropriate for the card type. Thus, there is no effective difference between a value of 10 feet and a value of 110 feet.
For an E3 connection, the ranges of actual cable lengths overlap. A value in the range 351 - 800 is adequate for a cable as short as 300 feet; a value in the range 801 - 1000 is adequate for a cable as short as 650 feet; and a value in the range 1001 - 1250 is adequate for a cable as short as 900 feet. Bear this in mind if you have estimated the E3 cable length, and there is a possibility that the actual cable length is significantly greater than your estimate.
The measurements given in feet above correspond to measurements in meters as follows:
| Feet | Meters | Feet | Meters | Feet | Meters |
|---|---|---|---|---|---|
The software interprets the numeric length argument of this command as a number of feet.
For constant bit rate (CBR) circuits, you may use the set port c.p characteristics cable db value command (as an alternative to the set port c.p characteristics cable len feet command) to set the signal attenuation factor (line buildout) due to electrical impedance of connective cabling. The significance of the value argument is shown in the following table.
Use the set port c.p characteristics cell-scrambling {enable | disable} command to enable or disable cell payload scrambling on a medium-speed port or a T3/E3 edge or trunk port (on an 8-port card). This attribute must be set the same at both ends of a connection. For OC-3c, it cannot be disabled; for DS-3, it can be in either state.
Use the set port c.p characteristics clkmode type command to set the clock mode type for CBR circuit emulation. The value of type may be adaptive, srts, or synchronous.
Use the set port c.p characteristics clocking {internal | external} command to set the clocking source for an OC-3c, T1, or E1 port to the port's receive line (external) or to the node-wide network timing source provided by the switch card (internal).
For constant bit rate (CBR) circuits, use the set port c.p characteristics circuit-id string command to set the transmission vendor's circuit identifier. The string can be up to 64 characters. This command sets the value of the dsx1CircuitIdentifier object in the DS1 standard MIB.
Use the set port c.p characteristics csu {none | larse} command to set the CSU/DSU type of a port on a low-speed card or serial access card to larse or to specify that no CSU/DSU is present.
You must use the set port c.p characteristics executechange command in order to make this change operational.
Use the set port c.p characteristics dce-bitrate-bps bps command to set the DCE bit rate for the specified port on a low-speed or serial interface module. The port must first have been configured as a DCE with the set port c.p characteristics dce-dte-type command. The DCE bit rate is used when a port is being driven through use of internal clocking.
You must use the set port c.p characteristics executechange command in order to make this change operational.
For an 8-port serial interface module, the value of bps for the DCE bit rate may be any of the following:
For a low-speed interface module (line card), the value of bps for the DCE bit rate may be any of the following:
(For the low-speed interface module, the values 4,000,000 and 5,376,000 are available but are not supported; they may work for large packet sizes.)
You must use the set port c.p characteristics executechange command in order to make this change operational.
Use the set port c.p characteristics dte-bitrate bps command to set the DTE bit rate for the specified port on a low-speed or serial interface module. The card must first have been configured as a DTE with the set port c.p characteristics dce-dte-type command. The value of bps for the DTE bit rate is unrestricted in the range of decimal integers 9,000 - 3,840,000. (Values up to 6,000,000 are available but not supported; they may work for large packet sizes.)
You must use the set port c.p characteristics executechange command in order to make this change operational.
The DTE bit rate setting is used when a port is being driven through the use of external clocking on a serial line. If the value is incorrect, and differs from the bit rate actually received from the DCE, the incorrect value either limits the data on the port too much, or it causes the allocation of excess bandwidth that cannot be used. If the bit rate of the DCE varies, the interface module issues traps.
Use the set port c.p characteristics dce-dte-type {dce | dte | dce-internal} command to set the specified port on a low-speed or serial interface module to be a DCE, a DTE, or an internal DCE. The dce setting connects the receive clock to the TT interface signal. The dce-internal setting connects the receive clock to a locally generated clock. A DCE internal port can interface with DTE devices that cannot return the TT signal. This value is interdependent with the values described under the dce-bitrate-bps and dte-bitrate arguments.
You must use the set port c.p characteristics executechange command in order to make this change operational.
Use the set port c.p characteristics executechange command to make certain previously set administrative values operational for the specified port. The distinction between administrative and operational values applies only to the following port characteristics: csu, protocol, and the DCE and DTE attributes.
Use the set port c.p characteristics framing-type {plcp | t3-hec | g-804} command to set the framing type of a T3 port to PLCP or T3 HEC, or to set the framing type of an E3 port to PLCP or G.804.
For constant bit rate (CBR) circuits, use the set port c.p characteristics linecoding {ami | b8zs | hdb3} command to set the type of line coding (zero code suppression) used on the link. For E1 circuit emulation, the default is HDB3, and for T1 circuit emulation the default is B8ZS. In either case, the line type may be set to AMI. This command sets the value of the dsx1LineCoding object in the DS1 standard MIB. The effects of the different types of line coding are as follows:
Use the set port c.p characteristics oc3-type {sonet | sdh} command to configure an OC-3c trunk or edge port to support SONET (STS-3c) or SDH (STM-1).
Use the set port c.p characteristics protocol {atm-uni | frameforward | framerelay | trunk} command to configure an edgeprotocol (ATM-UNI, frame forwarding, or Frame Relay) or the trunk protocol on the specified port. The following considerations apply when you interchange the trunk protocol and an edge protocol on a port:
You must use the set port c.p characteristics executechange command in order to make this change operational.
Use the set port c.p characteristics vpi vpi# command to configure this port as a virtual path connection trunk (VP trunk) port with virtual path identifier (VPI) number VPI#. This command can be used only on an 8-port or 4-port T3/E3 interface module or on an OC-3c module. The port must be configured as a trunk port with the set port c.p characteristics protocol trunk command. Use the show port c.p vpi command to display the VPI number.
This section gives an overview of commands used to configure and control ATM UNI permanent virtual connections (PVCs). Complete descriptions of set port commands for ATM UNI ports follow the overview.
Use the set port c.p vci vci# commands to configure and control an ATM UNI PVC on the specified port. The VCI number must be in the range 1 - 32399. (This range may be further restricted depending upon the type of interface module. The software informs you of such restrictions.)
To create an ATM UNI permanent virtual connection (PVC), use the set port c.p vci commands. A typical command sequence would be as follows:
You could use the insured-rate, max-rate, and transmit-priority arguments in additional set port commands, but most users accept the default values for these three parameters. It is recommended that you accept the defaults for the insured burst and maximum burst parameters. (In any case, the maximum burst size must be at least as great as the insured burst size.)
A PVC must be configured explicitly in both directions—that is, you must configure the circuit for the ports at both ends of the PVC. To configure a bidirectional ATM UNI PVC with VCI number 17 between port 3.1 on node-A and port 7.0 on node-B, use the following commands:
| On Node-A | On Node-B |
|---|---|
Using the same VCI number at both ends of the PVC is administratively convenient, but not necessary. Insured rate and max rate may be configured with different values at the two ends of the PVC if an asymmetric PVC is desired. All other PVC parameters should be configured the same at both ends of the PVC.
Use the set port c.p vcivci# activate command to enable the specified ATM UNI PVC on the specified port after setting its parameters with other set port c.p vci commands. The destination node, destination port, and destination VCI number may not be altered after activating the PVC. Configure both ends of a bidirectional PVC before activating the PVC.
Use the set port c.p vcivci# deactivate command to deactivate the specified PVC without deleting it. This is useful, for example, when you wish to keep an ATM UNI PVC as a backup circuit.
Use the set port c.p vcivci# del command to deactivate and delete the specified ATM UNI PVC from the specified port.
Use the set port c.p vci vci# destnode {chassisID | chassisname} command to set the destination node for the specified ATM UNI PVC on the specified port. Identify the node by its chassis number, or by its chassis name if the name has previously been set with the set chassis name command.
Use the set port c.p vci vci# destport c.p command to set the destination port to c.p for the specified ATM UNI PVC.
Use the set port c.p vci vci# destvci destvci# command to set the destination VCI to destvci# for the specified ATM UNI PVC. The VCI numbers vci# and destvci# must both be in the range 1 - 32399.
Use the set port c.p vci vci# insured-burst cells command to set the insured burst to cells for the specified ATM UNI PVC. The insured burst is the upper bound on the non-sharable bandwidth that the connection may use in bursts, that is, the amount by which bursts may exceed the insured rate (see insured-rate). The range is 0 - 1023. The default is 128 cells. This value cannot exceed the value of the maximum burst parameter (see the set port c.p vci vci# max-burst command).
Use the set port c.p vci vci# insured-rate cells/sec command to set the insured rate to cells/sec for the specified ATM UNI PVC. The insured rate is the upper bound on the non-sharable bandwidth that the connection may use in a sustained way. The range is 0 - 353,000 cells per second. The default for ATM UNI circuits is 0 cells per second.
Use the set port c.p vci vci# max-burst cells command to set the maximum burst to cells for the specified ATM UNI PVC. The default is 128 cells. This value must be at least as great as the value of the insured burst parameter (see the set port c.p vci vci# insured-burst command).
Use the set port c.p vci vci# max-rate cells/sec command to set the maximum rate to cells/sec for the specified ATM UNI PVC. The maximum rate is the upper bound on the rate of all traffic (insured and noninsured) allowed to enter the LightStream 2020 network, congestion permitting. The default rate is the line rate for all cards.
Use the set port c.p vci vci# principal-service-type {guaranteed | insured} command to set the bandwidth type (cell-drop priority) on the primary portion of the specified ATM UNI PVC to guaranteed or insured. The default is insured.
Use the set port c.p vci vci# transmit-priority {0 | 1 | 4} command to set the transmit priority of the specified ATM UNI PVC. This priority is used at each LS2020 node in the PVC across the network. The default for ATM UNI circuits is 1.
Use the stb argument of the set port command to set spanning-tree bridge attributes for the specified LAN port (see also the set stb command).
Use the set port c.p stb priority # command to set the priority of the specified port for a path that uses STP. The range is 0 - 255, and the default (if it is not explicitly set) is 128.
Systems using the Spanning-Tree Protocol calculate the relative costs of different paths toward the root bridge. A port's path cost is the contribution that the port makes to this calculation. Use the set port c.p stb pathcost # command to set the port's path cost. The range is 1 - 65535. The default value is calculated as 1000 divided by the speed of the network connection in megabits per second (Mbps). Thus, Ethernet has a default cost of 100, and FDDI has a default cost of 10.
Use the set port c.p stb enable command to enable bridge forwarding on the specified port. Ports are enabled when they come up, but the Spanning-Tree Protocol may disable a port to prevent loops if the topology of the bridged networks connected to this port changes.
Use the set port c.p stb disable command to disable bridge forwarding on the specified port.
Use the set port c.p stp-traffic IEEE command to enable the spanning tree feature on the specified port.
Use the set port c.p stp-traffic disable command to disable the processing and generation of spanning tree packets. This command disables the spanning tree feature, but continues to bridge user data normally.
Use the command set port c.p cbrpvc PVC# commands to configure constant bit rate PVCs.
Use the set port c.p cbrpvc PVC# destination chassis:c.p:PVC2 command to create a constant bit rate PVC with ID PVC# on local port c.p connecting to remote PVC with ID PVC2 on remote port chassis:c.p. Here, chassis is either the chassis ID number or the chassis name of an LS2020 node in the network. For the CEMAC card, PVC# is always 1.
Use the set port c.p cbrpvc PVC# {targetdepth | maxdepth} bytes command to control the reassembly buffer at the point where input cells are converted back into a constant bit rate (CBR) stream. An adaptive control loop maintains data in the buffer close to the level specified by targetdepth bytes. Data in excess of maxdepth bytes is discarded.
The default values of the target depth and maximum depth attributes are usually best left unchanged. If the target depth is set too high or if the maximum depth is set too far above the target, end-to-end delay for the entire circuit increases. With voice traffic, such delay can cause annoying echo. If the target depth is set too low or if the maximum depth is set too close to the target depth, random cell delay variation (CDV) may cause the circuit to overflow or underflow sporadically, causing data errors and reframe events for equipment downstream. For certain applications, such as video and phone, where some discarding of overflow data is an acceptable cost of maintaining a constant bit rate, it may be preferable to set these two parameters closer together.
Use the set port c.p cbrpvc PVC# activate command to activate the specified constant bit rate PVC.
Use the set port c.p cbrpvc PVC# deactivate command to deactivate the specified constant bit rate PVC.
Use the set port c.p cbrpvc PVC# service-type {atmuni | cbr} command to set the type of service for the specified constant bit rate PVC. This parameter applies to PVCs between CBR and ATM UNI ports only. On the CBR end, PVC# is always 1.
Use the set port c.p cbrpvc PVC# del command to delete the specified constant bit rate PVC.
Use the set port c.p cbrpvc PVC# datarate {bps bits/sec | cps cells/sec | slots slots} command to set the data rate used by this fractional CBR circuit. The value of bits/sec is expressed in multiples of 64,000. The value of slots is either a list or a range of time slots. This parameter applies to ports on FCEMAC cards only.
Use the set port c.p fddi {aport | bport} commands to set FDDI port and station management (SMT) parameters of FDDI port A or port B.
Use the set port c.p fddi {aport | bport} action enable command to enable the specified FDDI port.
Use the set port c.p fddi {aport | bport} action disable command to disable the specified FDDI port.
Use the set port c.p fddi {aport | bport} action start command to start the specified FDDI port.
Use the set port c.p fddi {aport | bport} action stop command to stop the specified FDDI port.
Use the set port c.p fddi {aport | bport} connectpolicy {none | lct | loop | both} command to specify the FDDI connection policy for this port. Use the lct argument for a MAC link competence test with the remote station (remote loop). Use the loop argument for an internal loop at the MAC. Enter none for no loop (internal or external), or enter both for both.
Use the set port c.p fddi {aport | bport} lercutoff error-rate command to set the link error rate estimate. This is an estimate of the rate at which an FDDI link connection on this port is broken. The range is 4 - 15 and the default is 7, meaning 10-7 errors per second.
Note In the unlikely event that this rate needs adjustment, it should be changed only by someone who is very knowledgeable about FDDI.
Use the set port c.p fddi smt t-notify sec command to set the timer used in the Neighbor Notification Protocol. The range is 2 - 30 seconds, and the default is 30 seconds.
Note In the unlikely event that this timer needs adjustment, it should be changed only by someone very knowledgeable about FDDI.
Use the set port c.p fddi smt stat-report {yes | no} command to determine whether status reporting frames for FDDI events and conditions are sent to the SMT management software. The value yes is the default. Depending on your network management system, SMT may pass some of these messages on to higher levels, where they become visible to the operator as SNMP traps.
Use the set port c.p fddi smt station connect command to begin an FDDI connection sequence. The port is controlled as an FDDI station.
Use the set port c.p fddi smt station {connect | disconnect} command to break an FDDI connection when the port is controlled as an FDDI station.
The set port c.p fddi smt station path-test command is intended to test the viability of the FLDSUP path when the port is controlled as an FDDI station. However, the FDDI path test is not supported in the current release.
Use the set port c.p fddi smt station disable-a command to disable the FDDI circuit on the (FDDI) A port ; use the set port c.p fddi smt station disable-b command to disable the FDDI circuit on the B port. The port is controlled as an FDDI station, and the port mode at the other end of the link must be peer (not master).
Use the set port c.p frameforwarding commands to configure and control a frame forwarding port.
Use the set port c.p frameforwarding activate command to enable a frame forwarding circuit on the specified port.
Use the set port c.p frameforwarding deactivate command to disable the frame forwarding circuit on the specified port.
Use the set port c.p frameforwarding destnode {chassisID | chassisname} command to set the destination node for frame forwarding on the specified port. The node is identified by its chassis ID, or it may be identified by its chassis name if the name has been set. Use the set chassis name command to set the chassis name.
Use the set port c.p frameforwarding destport c2.p2 command to set the destination port to c2.p2 on the remote node for the frame forwarding circuit configured on port c.p on the local node.
Use the set port c.p frameforwarding insured-rate bits/sec command to set the insured rate to the bit rate bits/sec for the specified frame forwarding port. The insured rate is the upper bound on the nonsharable bandwidth that the connection may use in a sustained way. The range is 0 - 100,000,000 bits per second. The administrative default is 0.
Use the set port c.p frameforwarding insured-burst bytes command to set the insured burst rate to bytes for the specified frame forwarding port. The insured burst is the upper bound on the nonsharable bandwidth that the connection may use in bursts. It is, therefore, the amount by which traffic on the connection may exceed the insured rate (see the preceding "set port c.p frameforwarding insured-rate" section). The range is 0 - 64,000. This value cannot exceed the value of the maximum burst parameter (see the set port c.p frameforwarding max-burst command).
Use the set port c.p frameforwarding max-rate bits/sec command to set the maximum rate for the specified frame forwarding port to the bit rate bits/sec. The maximum rate is the upper bound on the rate of all traffic (insured and non-insured) allowed to enter the LightStream 2020 network, congestion permitting. The range is 64,000 - 100,000,000 bps.
Use the set port c.p frameforwarding max-burst bytes command to set the maximum burst rate for the specified frame forwarding port to bytes. This value must be at least as great as the value of the insured burst parameter (see the set port c.p frameforwarding insured-burst command).
Use the set port c.p framerelay commands to configure and control a Frame Relay port, or each DLCI on a Frame Relay port.
Use the set port c.p framerelay lmiconfig {none | frif | ansi_t1_617d | q933a} command to set the LMI configuration type to FRIF, ANSI T1 617D, or Q933A, or to specify that there is no LMI for the specified port.
Use the set port c.p framerelay netinterfacetype {uni | nni} command to set the Frame Relay net interface type to UNI or NNI for the specified port.
Use the set port c.p dlci DLCI# activate command to enable the circuit on the specified DLCI. The range of DLCI numbers is 16 - 991.
Use the set port c.p dlci DLCI# deactivate command to deactivate the circuit on the specified DLCI. The range of DLCI numbers is 16 - 991.
Use the set port c.p dlci DLCI# del command to remove the specified DLCI from the system. The range of DLCI numbers is 16 - 991.
Use the set port c.p dlci DLCI# destnode {chassisID | chassisname} command to set the destination node for the specified DLCI. The destination node is identified by its chassis number, or it may be identified by its chassis name if the name has been previously set with the set chassis name command. The range of DLCI numbers is 16 - 991.
Use the set port c.p dlci DLCI# destport c2.p2 command to set the destination port for the specified DLCI to port c2.p2. The range of DLCI numbers is 16 - 991.
Use the set port c.p dlci DLCI# destdlci destDLCI# command to set the destination DLCI to destDLCI# for the DLCI specified as DLCI#. The range of DLCI numbers is 16 - 991 for both the DLCI# argument and the destDLCI# argument.
Use the set port c.p dlci DLCI# insured-rate bits/sec command to set the insured rate for the specified DLCI to the bit rate bits/sec. The range of DLCI numbers is 16 - 991. This is the upper bound on the nonsharable bandwidth that the connection may use in a sustained way. The range is 0 - 100,000,000 bits per second.
Use the set port c.p dlci DLCI# insured-burst bytes command to set the insured burst rate to bytes for the specified DLCI. The range of DLCI numbers is 16 - 991. The insured burst is the upper bound on the non-sharable bandwidth that the connection may use in bursts, that is, the amount by which traffic on the connection may exceed the insured rate (seethe insured-rate argument). The range is 0 - 64,000. This value cannot exceed the value of the maximum burst parameter (see the set port c.p dlci DLCI# max-burst command).
Use the set port c.p dlci DLCI# max-rate bits/sec command to set the maximum rate for the specified DLCI to the bit rate bits/sec. The range of DLCI numbers is 16 - 991. The maximum rate is the upper bound on the rate of all traffic (insured and noninsured) allowed to enter the LightStream 2020 network, congestion permitting. The range is 64,000 - 100,000,000 bits/sec.
Use the set port c.p dlci DLCI# max-burst bytes command to set the maximum burst rate to bytes for the specified DLCI. The range of DLCI numbers is 16 - 991. This value must be at least as great as the value of the insured burst parameter (see the set port c.p dlci DLCI# insured-burst command).
The following set port commands are used to filter traffic that is received over the specified port.
Use the set port c.p bcast-limit discard-all command to discard all bridge broadcast packets sent to this port. Broadcast frames that are recognized by filters are handled by the LS2020 hardware. Consequently, the broadcast limit attribute does not apply to broadcast traffic that matches a custom filter set on the port.
Use the set port c.p bcast-limit forward-all command to forward all bridge broadcast packets sent to this port. This command restores the default broadcast limit. Broadcast frames that are recognized by filters are handled by the LS2020 hardware. Consequently, the broadcast limit attribute does not apply to broadcast traffic that matches a custom filter set on the port.
Use the set port c.p bcast-limit packets/sec command to set the maximum rate of bridge broadcast packets to be forwarded through this port. The value is given in packets per second and is in the range 1 - 127. Excess broadcast packets are dropped. Broadcast frames that are recognized by filters are handled by the LS2020 hardware. Consequently, the broadcast limit attribute does not apply to broadcast traffic that matches a custom filter set on the port.
Use the set port c.p bflt filterID block priority command to assign bridge traffic filter number filterID to block traffic received over port c.p. Traffic filter filterID must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). Up to 32 bridge filters can be assigned to the same port, the maximum being 1024 filters for all ports on an LS2020 node. A given filter can be associated with more than one port.
Note Resetting the card does not affect filter attributes. Bridge filters are applied to incoming traffic before IP and IPX filters are applied.
When an incoming packet on port c.p matches the blocking filter, the packet is discarded.
The priority argument is a number that determines the sequence in which multiple filters are considered on this port. Each filter on a given port must have a unique priority number. The lowest number is considered first. It is best to assign priority numbers by 10s (10, 20, 30, ...), leaving gaps for possible future insertions into the sequence. If two filters can match the same packet, give the more specific filter the higher priority, so that it is considered first.
Use the set port c.p bflt filterID forward priority [mcast mcastID] [tprof tprofID] command to assign bridge filter number filterID to forward traffic over a port. Traffic filter filterID must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). Up to 32 bridge filters can be assigned to the same port, the maximum being 1024 filters for all ports on an LS2020 node. A given filter can be associated with more than one port.
Note Resetting the card does not affect filter attributes. Bridge filters are applied to incoming traffic before IP and IPX filters.
When an incoming packet on port c.p matches the forwarding filter, a flow is generated (if it is not already established). For a point-to-point flow, the destination port is determined from information in the header of the incoming packet.
The priority argument is a number that determines the sequence in which multiple filters are considered on this port. Each filter on a given port must have a unique priority number. The lowest number is considered first. It is best to assign priority numbers by 10s (10, 20, 30, ...), leaving gaps for possible future insertions into the sequence. If two filters can match the same packet, give the more specific filter the higher priority, so that it is considered first.
The optional arguments are discussed in the following paragraphs.
You can associate the multicast group identified as number mcastID with the flow, making it a multicast (point-to-multipoint) flow. The multicast group must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). The action taken by the filter must be forward.
Note For a multicast flow to be bidirectional, the same multicast group must be defined for and assigned to the remote endpoints.
| Caution Multicast groups are network-wide constructs. Define them consistently on all nodes of the network. If you fail to do so, it may be difficult to debug problems involving multicast traffic. For administrative convenience, it is also advisable to define traffic profiles and filters consistently across the network or across relevant portions of the network. |
You can associate the traffic profile identified as number tprofID with the flow. A traffic profile is a set of type-of-service attributes. Traffic profile number tprofID must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). The action taken by the filter must be forward.
Flows defined by different filters are multiplexed over the same connection under the following conditions:
If you want to prevent multiplexing of a flow, define a second multicast group ID with the same list of ports, or a second traffic profile ID with the same values for traffic profile parameters. Associate the new ID with the filter that specifies the flow that you do not want multiplexed.
Use the set port c.p bflt filterID del command to break the association between the specified bridge filter and the specified port. You must do this before you can delete the filter itself, using the delete command (see the chapter entitled "The Define and Delete Commands").
Use the set port c.p bflt-def block command to set the default bridge filter action for the specified port to block.
Use the set port c.p bflt-def forward command to set the default bridge filter action for the specified port to forward.
Use the set port c.p ipflt filterID block priority command to assign filter number filterID to block traffic received over port c.p. Traffic filter filterID must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). Up to 32 IP filters can be assigned to the same port, the maximum being 1024 filters for all ports on an LS2020 node. A given filter can be associated with more than one port.
Note Resetting the card does not affect these attributes. IPX filters are applied to incoming traffic after bridge filters.
When an incoming packet on port c.p matches the blocking filter, the packet is discarded.
The priority argument is a number that determines the sequence in which multiple filters are considered on this port. Each filter on a given port must have a unique priority number. The lowest number is considered first. It is best to assign priority numbers by 10s (10, 20, 30, ...), leaving gaps for possible future insertions into the sequence. If two filters can match the same packet, give the more specific filter the higher priority, so that it is considered first.
Use the set port c.p ipflt filterID forward priority [mcast mcastID] [tprof tprofID] command to assign IP filter number filterID to forward traffic over a port. Traffic filter filterID must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). Up to 32 IP filters can be assigned to the same port, the maximum being 1024 filters for all ports on an LS2020 node. A given filter can be associated with more than one port.
Note Resetting the card does not affect filter attributes. IP filters are applied to incoming traffic after bridge filters.
When an incoming packet on port c.p matches the forwarding filter, a flow is generated (if it is not already established). For a point-to-point flow, the destination port is determined from information in the header of the incoming packet.
The priority argument is a number that determines the sequence in which multiple filters are considered on this port. Each filter on a given port must have a unique priority number. The lowest number is considered first. It is best to assign priority numbers by 10s (10, 20, 30, ...), leaving gaps for possible future insertions into the sequence. If two filters can match the same packet, give the more specific filter the higher priority, so that it is considered first.
The optional arguments are discussed in the following paragraphs.
You can associate the multicast group identified as number mcastID with the flow, making it a multicast (point-to-multipoint) flow. The multicast group must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). The action taken by the filter must be forward.
Note For a multicast flow to be bidirectional, the same multicast group must be defined for and assigned to the remote endpoints.
| Caution Multicast groups are network-wide constructs. Define them consistently on all nodes of the network. If you fail to do so, it may be difficult to debug problems involving multicast traffic. For administrative convenience, it is also advisable to define traffic profiles and filters consistently across the network or across relevant portions of the network. |
You can associate the traffic profile identified as number tprofID with the flow. A traffic profile is a set of type-of-service attributes. Traffic profile number tprofID must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). The action taken by the filter must be forward.
Flows defined by different filters are multiplexed over the same connection under the following conditions:
If you want to prevent multiplexing of a flow, define a second multicast group ID with the same list of ports, or a second traffic profile ID with the same values for traffic profile parameters. Associate the new ID with the filter that specifies the flow that you do not want multiplexed.
Use the set port c.p ipflt ID del command to break the association between the specified IP filter and the specified port. You must do this before you can delete the filter itself, using the delete command (see the chapter entitled "The Define and Delete Commands").
Use the set port c.p ipflt-def block command to set to block the default IP filter action for the specified port.
Use the set port c.p ipflt-def forward command to set the default IP filter action for the specified port to forward.
Use the set port c.p ipxflt filterID block priority command to assign filter number filterID to block traffic received over port c.p. Traffic filter filterID must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). Up to 32 IPX filters can be assigned to the same port, the maximum being 1024 filters for all ports on an LS2020 node. A given filter can be associated with more than one port.
Note Resetting the card does not affect filter attributes. IPX filters are applied to incoming traffic after bridge filters.
When an incoming packet on port c.p matches the blocking filter, the packet is discarded.
The priority argument is a number that determines the sequence in which multiple filters are considered on this port. Each filter on a given port must have a unique priority number. The lowest number is considered first. It is best to assign priority numbers by 10s (10, 20, 30, ...), leaving gaps for possible future insertions into the sequence. If two filters can match the same packet, give the more specific filter the higher priority, so that it is considered first.
Use the set port c.p ipxflt filterID forward priority [mcast mcastID] [tprof tprofID] command to assign IPX filter number filterID to forward traffic over a port. Traffic filter filterID must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). Up to 32 IPX filters can be assigned to the same port, the maximum being 1024 filters for all ports on an LS2020 node. A given filter can be associated with more than one port.
Note Resetting the card does not affect filter attributes. IPX filters are applied to incoming traffic after bridge filters.
When an incoming packet on port c.p matches the forwarding filter, a flow is generated (if it is not already established). For a point-to-point flow, the destination port is determined from information in the header of the incoming packet.
The priority argument is a number that determines the sequence in which multiple filters are considered on this port. Each filter on a given port must have a unique priority number. The lowest number is considered first. It is best to assign priority numbers by 10s (10, 20, 30, ...), leaving gaps for possible future insertions into the sequence. If two filters can match the same packet, give the more specific filter the higher priority, so that it is considered first.
The optional arguments are giving in the following paragraphs.
Optionally associate the multicast group identified as number mcastID with the flow, making it a multicast (point-to-multipoint) flow. The multicast group must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). The action taken by the filter must be forward.
Note For a multicast flow to be bidirectional, the same multicast group must be defined for and assigned to the remote endpoints.
| Caution Multicast groups are network-wide constructs. Define them consistently on all nodes of the network. If you fail to do so, it may be difficult to debug problems involving multicast traffic. For administrative convenience, it is also advisable to define traffic profiles and filters consistently across the network or across relevant portions of the network. |
Optionally associate the traffic profile identified as number tprofID with the flow. A traffic profile is a set of type-of-service attributes. Traffic profile number tprofID must previously have been created with the define command (see the chapter entitled "The Define and Delete Commands"). The action taken by the filter must be forward.
Flows defined by different filters are multiplexed over the same connection under the following conditions:
If you want to prevent multiplexing of a flow, define a second multicast group ID with the same list of ports, or a second traffic profile ID with the same values for traffic profile parameters. Associate the new ID with the filter that specifies the flow that you do not want multiplexed.
Use the set port c.p ipxflt ID del command to break the association between the specified IPX filter and the specified port. You must do this before you can delete the filter itself, using the delete command (see the chapter entitled "The Define and Delete Commands").
Use the set port c.p ipxflt-def block command to set to block the default IPX filter action for the specified port.
Use the set port c.p ipxflt-def forward command to set to forward the default IPX filter action for the specified port.
Use the set port c.p np-deliver block command to prevent received frames from being delivered to any NP in the network.
Note This command requires protected mode. (See the protected command in the chapter entitled "CLI Control Commands.")
Use the set port c.p np-deliver forward command to enable delivery of received frames to NPs in the network.
Note This command requires protected mode. (See the protected command in the chapter entitled "CLI Control Commands.")
Use the set port c.p wgrp commands to maintain the workgroup list for each port. There is one workgroup list per port. The port is either included in or excluded from all the listed workgroups (see the include and exclude arguments, below).
| Caution Workgroups are network-wide constructs. Define them consistently on all nodes of the network. If you fail to do so, problems involving the workgroups may be difficult to debug. |
Use the set port c.p wgrp add ID [, ID ...] command to add one or more workgroup IDs to the list for the specified port, separated by commas. There can be up to seven workgroup IDs per port in an include list (up to six in an exclude list). Use the show port c.p wgrp command to display the current list (see the chapter entitled "The Show Command").
Note Adding a workgroup to the default list with the set port c.p wgrp add ID command does not delete the default workgroup automatically. The corresponding action with the configuration tool does delete the default workgroup automatically.
Use the set port c.p wgrp include command to allow this port to intercommunicate with ports in the workgroups that are in the list (no communication with workgroups not in the list). An include list may name up to seven workgroups per port.
In practically all cases, the workgroup list for a port should be defined in the include sense. The default is an include list that contains just Workgroup 1 (the default workgroup). An empty include list is treated the same as this default case.
Use the set port c.p wgrp exclude command to allow this port to intercommunicate with ports in all workgroups in the range 1 - 65,535 except those listed. An exclude list can name up to six workgroups per port.
The most important use of an exclude list is to enable a port to communicate with all workgroups, where workgroups other than the default (workgroup 1) are defined in the network. To use the exclude list in this way, configure an empty list (delete all workgroup IDs, including Workgroup 1) and change the sense to exclude.
Note The set command does not accept the mnemonic workgroup names (aliases) maintained by the configuration tool. If you use the set port c.p wgrp commands, you should maintain a list showing how the group IDs correspond to mnemonic workgroup names.
Use the set port c.p wgrp del {ID | all} command to delete the specified workgroup, or all workgroups, from the list for the specified port. ID is a workgroup ID number in the range 1 - 65,535. An empty include list is equivalent to the default group (Workgroup 1). An empty exclude list permits communication with every workgroup.
Each SNMP manager (the CLI, for example) and each managed system (the MMA in an LS2020 switch, for example) has a community name. The SNMP manager specifies a community name in each command it sends. The managed system validates the commands before executing them by comparing the community name in the command against its own community name.
Before you can set attributes or use the CLI control commands, you must set the SNMP community to a community that has read/write access privileges. The read/write community provided with the system is named write. (A switch can have several SNMP community names with read/write privileges.) The read-only community provided with your system is named public.
Use the set snmp commands to set the value of the read-write community name and of the target host name for the specified port.
Note The set snmp commands affect only the node on which the CLI is running when you execute them, regardless of any target that has been set with the command set snmp hostname name.
Use the set snmp community name command to set the currently used community name to the string name.
See the LightStream 2020 Installation Guide for descriptions of SNMP communities and the mma.communities file.
Use the set snmp hostname {name | IPaddress} command to set the target host to name or IPaddress. When the target is the node on which the CLI is running, name is the string localhost.
The command in the following example sets the target system to be the node whose alias is boston5:
Use the set stb commands to define the spanning-tree bridge parameters for the node. See also the set port c.p stb command, which is used to set per-port spanning-tree bridge parameters.
Use the set stb maxage age command to set the maximum age that should be used to time out STP information. This value takes effect only when this node becomes the root bridge. The value is in hundredths of a second, truncated to seconds. For example, 400, 401, and 499 each signify 4 seconds. The range of age is 600 - 4000, and the default is 2000. The limits on this value are as follows (in seconds):
Use the set stb forwdelay time command to set the interval before changing to another state. This value takes effect only when this node becomes the root bridge. The value is in hundredths of a second, truncated to seconds. For example, 400, 401, and 499 each signify 4 seconds. The range of time is 400 - 3000, and the default is 1500 (15 seconds). The limits on this value are as follows (in seconds):
Use the set stb hellotimer time command to set the interval between bridge protocol data units (BPDUs) sent out by this port. This value takes effect only when this node becomes the root bridge. The value is in hundredths of a second, truncated to seconds. For example, 400, 401, and 499 each signify 4 seconds. The range of time is 100 - 400, and the default is 200 (2 seconds). The limits on this value are as follows (in seconds):
Use the set stb priority priority command to set the priority for using this node in a path using the spanning tree protocol, relative to the priority for using other nodes. The range of priority is 0 - 65535, and the default is 32768.
Use the set stb static MACaddr rcv {c.p | any} xmit c.p [c.p ...] command to enter a static entry into the bridge forwarding database. Use the set stb static MACaddr rcv {c.p | any} status {invalid | deleteonreset | permanent} command to delete a static entry from the bridge forwarding database or to prevent it from being deleted automatically when the bridge is reset. For each entry
Use the set tcs command family to access the test and control system (TCS) command interface from the CLI. You can access only a few basic functions of the TCS from the CLI. See the LightStream 2020 Hardware Reference & Troubleshooting Manual for additional information about the TCS commands.
Note The set tcs commands require CLI protected mode. (See the protected
command in the chapter entitled "CLI Control
Commands.")
These commands affect only the node on which the CLI is running when you execute them, regardless
of any target that has been set with the command set snmp hostname name.
The set tcs commands do not work on a network management workstation. When you start the CLI on an
NMS, you see the message "Warning: No TCS available."
Use the set tcs card# midplane node_address command to set the midplane address for the specified card to the node address address.
Note All cards in a chassis must have the same midplane address. In particular, Switch A and Switch B in a redundant system must have the same midplane address.
Use the set tcs card# power {on | off} command to turn power on or off for the specified card. (Not supported on Release 2 switch cards.)
Use the set tcscard# reset command to reset the specified card.
Use the set trap command family to control the display of specified traps. See the LightStream 2020 Traps Reference Manual for information about LS020 traps.
The following default status settings should be in effect:
Although we do not recommend it, these default settings can be changed through use of one or more of the following commands:
The preceding commands change the ranges of traps affected by the on/off and disable/enable arguments. To avoid confusion, we recommend that you not use these commands to change the default effect of the set trap commands.
Note The set trap commands require CLI protected mode. (See the protected command in the chapter entitled "CLI Control Commands.") These commands affect only the node on which the CLI is running when you execute them, regardless of any target that has been set with the command set snmp hostname name.
In the following command descriptions, trapspec stands for a trap name or a trap number. See the LightStream 2020 Traps Reference Manual for trap names and numbers. You can also specify a range of trap numbers or a name for a group of traps previously defined in the cli.groups file, but doing so is not recommended, as you could easily disrupt the system by flooding it with traps.
The trapspec arguments are used to specify traps to be set. The following list shows ways that the trap or traps can be specified:
Use the set trap {disable | enable} trapspec command to disable specific traps that are being displayed on the console (normally, oper traps), or enable them again after they have been disabled. (This does not apply to traps that are being displayed only because they were turned on with the set trap on command.) The trapspec argument is a trap name or a trap number; see the LightStream 2020 Traps Reference Manual for trap names and numbers.
Use the set trap [global] {on | off} trapspec command to turn on traps that are currently being ignored (normally, trace traps and debug traps), or to turn them back off again after they have been turned on. The trapspec argument is a trap name or a trap number as described under the preceding heading "trapspec".
The set trap on trapspec command does not affect traps that are being ignored because they were disabled with the set trap disable trapspec command.
The default is to apply this operation to all processes system-wide, but you may explicitly specify this behavior with the optional global argument. (You use the set trap pid {PIDname | PID#} {on | off} trapspec command to control traps on a per-process basis.)
The set trap pid commands are for debugging and support use only. They are of no use unless you know which traps are issued by a given process, or which processes issue a given set of traps. In normal operation, you never use the pid argument of the set trap command.
Use the set trap pid {PIDname | PID#} {on | off}trapspec command to make the on or off switch apply to the process with alias PIDname or number PID# (instead of globally to all processes). The trapspec argument is a trap name or a trap number as described under the preceding heading "trapspec."
Trace and debug traps include the PID and alias of the process in which the trap occurred. You can also display a list of process aliases with the walksnmp lwmaTrapCliAlias command.
The following command sets the SNMP read/write community attribute to the name "write," so that you can use the set trap command:
The community named "write" is defined in the mma.communities file as having write permission.
The following command disables the oper trap LCC_1, which reports a high error rate:
After correcting the problem, re-enable the trap with the following command:
Posted: Wed Jan 22 23:39:32 PST 2003
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