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Optimizing Traffic Routing and Bandwidth

Optimizing Traffic Routing and Bandwidth

To achieve peak network performance, the routing of traffic and use of available bandwidth is configurable. The information used in configuring traffic routing and bandwidth is gathered from historical network trends. The tasks required to optimize the network are: specifying channel utilization, specifying the class of service, and managing bandwidth. These tasks are discussed in the paragraphs that follow.

Specifying Channel Utilization

Use the cnfchutl command to specify the expected utilization of frame relay, data, or voice channel as a percentage of the channel's total capacity. The specified value can be in the range of 0% to 100%. 100% is the default for data and frame relay channels. The default for voice channels is 40%. To display the utilization of a particular trunk, use the dsptrkutl command. This command displays a details on the packets transmitted over the trunk. The user can specify the rate in seconds at which the screen is updated. Use the dspload command to display the load for a specified trunk at a node.

Specifying Class of Service

Use the cnfcos command to specify a class of service (COS) for a frame relay, data, or voice channel. The class of service is a number from 0 to 15 that determines the channel's priority for rerouting in the event of trunk failure. The lower the number, the higher the priority. For each COS number, there is delay of 1 second in rerouting the next COS number. Thus COS 2 channels are rerouted 2 seconds after COS 0 channels. By spreading out the COS numbers to increase the delay interval, one class of channels have a chance to reroute before the next class starts to reroute.

Managing Bandwidth

There are a number of commands that assist in managing bandwidth to achieve satisfactory traffic patterns.

upcon, dncon

The up and down connection commands can be used to temporarily down connections of a specified COS, thus releasing bandwidth for other services. Often it is possible to down some voice connections to provide more bandwidth for data and frame relay connections.

cnfpref

The configure preference command can be used to specify preferred routing for intra-domain connections. This command can be used to assist in balancing the load on the network's trunks.

dsprts, prtrts

The display and print routes commands can be used in conjunction with the cnfpref command to display the current connection routing information.

Summary of Commands

The following list shows the full command name and starting page for each description.


Table 11-1:
Command Description Page

cnfchutl

Configure channel utilization

11-3

cnfcos

Configure class of service

11-7

cnfpref

Configure preferences

11-9

dncon

Down connections

11-12

dspload

Display load

11-15

dspospace

Display open space for routes

11-18

dsprts

Display routes

11-20

dsptrkutl

Display trunk utilization

11-22

prtrts

Print routes

11-25

upcon

Up connections

11-27

cnfchutl

Informs the system software of the expected utilization rate of connections with traffic-dependent compression algorithms (voice connections with VAD, data connections with DFM, frame relay connections, FastPAD voice connections with ATC-8K, ATC-12K, ATC-16K, or CELP-8K compression). The software load model then takes the full rate for the connection (e.g. 381 packets/second for a voice connection) and modifies it using the specified percentage. The resulting rate is used in calculations for loading trunks. The load model uses these figures instead of estimates calculated from real traffic patterns.

On a FastPAD channel, the compression rate adapts to the congestion level within the network. The configured compression rate indicates the maximum rate for the channel. FastPAD channels detect FAX signals and adapt their rates for FAX transmittal. For the full benefits of the compression algorithms to be used, the default utilizations should be modified after traffic studies have been performed. Also, traffic studies of frame relay connections should be used to determine optimum utilization settings. When calculating loads in a network, the load allocated to a connection is:

  channel utilization x full load for the connection type

For example, with a channel utilization of 50% and a full load of 480 packets per second, the load allocated to a connection is:

  0.50 x 480 pps = 240 pps

For data connections with DFM turned off, for voice connections with VAD turned off, and for all FastPAD data connections, the bandwidth allocated is always the maximum bandwidth for the connection type. In other words, the utilization, although configurable, is ignored for a voice channel without VAD, a data channel without DFM and all FastPAD data channels.

If the cnfchutl command is used to increase the utilization of a connection, the system verifies that the additional bandwidth is available on the connection's current route. If the bandwidth is not available, the system attempts to reroute the connection. If no other route is found, the connection is failed. If the cnfchutl command is used to decrease the utilization of a connection, the system makes the bandwidth available to other connections that require a route. The screen displayed by the cnfchutl command depends upon whether a data channel, voice channel, or frame relay channel is specified. The screen displayed is the same as that for the dspchcnf command.

Full Name

Configure channel utilization

Syntax

cnfchutl <channel(s)> <%_util>

Related Commands

dspchcnf

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX

Lock

Yes

Example 1 Description

cnfchutl 5.1 40

Set utilization on data channel 5.1 at 40%

System Response
alpha TRM YourID:1 IPX 16 8.2 Mar. 23 1996 10:45 PST Maximum EIA % DFM Pattern DFM Channels Update Rate Util Length Status 5.1 15 40 8 Enabled 5.2-4 2 100 8 Enabled Last Command: cnfchutl 5.1 40 Next Command:
Example 2 Description

cnfchutl 14.1 55

Set utilization on voice channel 14.1 at 55%

System Response
alpha TRM YourID:1 IPX 16 8.2 Mar. 16 1996 10:10 PST % Adaptive Gain (dB) Dial OnHk Cond Channels Util Voice In Out Type Interface Type A B C D Crit. 14.1 55 Enabled -4 - User Unconfig ? ? - - a 14.2-24 40 Enabled 0 - Inband Unconfig ? ? - - a Last Command: cnfchutl 14.1 55 Next Command:
Example 3 Description

cnfchutl 8.1.100 60

Set utilization on frame relay channel 8.1.100 at 60%

System Response
alpha TRM YourID:1 IPX 16 8.2 Mar. 23 1996 10:45 PST Frame Relay Channel Configuration Port: 8.1 From Minimum Peak AvgFrame Cmax VC Q ECN Q % Util
8.1.100 9.6 * 70 10 65535 65535 60
8.1.301 9.6 * 70 10 65535 65535 100 Last Command: cnfchutl 8.1.100 60 Next Command:

Table 11-2: cnfchutl - Parameters
Parameter Description

channels

Specifies the channel for configuring utilization. The channel can be for voice, data, frame relay, or Fast PAD voice or data. Channel has one of the following formats:

slot.channel For voice connections

slot.port For data connections

slot.port.DLCI For frame relay connections

slot.port For FastPAD switched voice connections

slot.port.subslot For FastPAD voice connections

slot.port.subslot.subport For FastPAD data connections

percent utilization

Specifies the percentage of utilization of the channel. The is range 0 - 100. The default value for data or frame relay is 100%. The default value for voice is 40%.

cnfcos

Sets the priority for rerouting a connection. When connections have failed (normally due to trunk failures), they are rerouted according to priorities that are set primarily by the COS. The assigned class of service determines the order of rerouting for connections owned by a node. The routing algorithm waits 1 second between each COS increment. Thus, a connection with a COS of 0 is rerouted 2 seconds before a connection with a COS of 2.

If a network carries large volumes of traffic, use fewer COS increments. A larger increment means fewer increments. For example, an increment of 3 would mean COSs of 0, 3, 6, 9, 12, and so on. For a network with little traffic, assign COS values in increments of 2 (COSs of 0, 2, 4, and so on). This ensures that all connections of a given COS reroute before the connections with the next COS start to reroute.

Full Name

Configure class of service for connections

Syntax

cnfcos <group | channel(s)> <cos>

Related Commands

dspcons

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX

Lock

Yes

Example 1 Description

cnfcos 5.1 0

Set the COS for channel 5.1 to 0

System Response
alpha TRM YourID:1 IPX 16 8.2 Mar. 16 1996 10:12 PST Local Remote Remote Route Channel NodeName Channel State Type Compression Code Avoid COS O 5.1 beta 25.1 Ok 256 7/8 0 L 9.1.100 gamma 8.1.200 Ok fr 0 L 9.2.400 beta 19.2.302 Ok fr 0 L 14.1 gamma 15.1 Ok v 0 L Last Command: cnfcos 5.1 0 Next Command:
Table 11-3: cnfcos - Parameters
Parameter Description

channels

Specifies the the voice, data, frame relay or Fast PAD voice/data channel(s) for which to configure channel utilization, where channel is one of the following:

  • slot.channel For voice connections

  • slot.port For data connections

  • slot.port.DLCI For frame relay connections

  • slot.port For FastPAD switched voice connections

  • slot.port.subslot For FastPAD voice connections

  • slot.port.subslot.subport For FastPAD data connections

cos

Specifies the class of service number to assign to the channel, range of channels or connection group. The range is from 0 to 15. The lower the class of service number, the higher the priority for rerouting.

cnfpref

Specifies the preferred route for a connection, connection group, or range of connections. Enter cnfpref only at a node that is an end point of the connection. This command applies only to connections that exist within a domain. Do not attempt to execute cnfpref on connections that exit between domains.

The specified preferred route for a connection is used when possible. If the preferred route is different from the existing route, the connection automatically moves to the preferred route whenever network conditions allow (for example, when trunks are out of alarm and sufficient bandwidth exists).

Full Name

Configure preferred route for connections

Syntax

cnfpref <channels> <route> [d]

Related Commands

dsprts

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX

Lock

Yes

Example 1 Description

cnfpref 14.1 13/beta 15/gamma d

Select the preferred route for channel 14.1 to be through beta trunk 13 to beta then to gamma trunk 15. For gamma, the "d" in the command specifies that the route is directed.

System Response
alpha TRM YourID:1 IPX 16 8.2 Mar. 16 1996 10:22 PST From 14.1 Route 14.1 alpha 14--13beta 15--15gamma Pref:(D) alpha 14--13beta 15--15gamma Last Command: cnfpref 14.1 13/beta 15/gamma d Next Command:
Example 2 Description

cnfpref 6.4

Remove the preferred route for channel 6.4

Example 3 Description

cnfpref * +

Designate the current routing of all locally owned connections to be the preferred routing. Using a "-" instead of a "+" in the command would remove the preferred routing designation of all locally owned connections.

System Response
alpha TRM YourID:1 IPX 16 8.2 Mar. 23 1996 10:48 PST Chan/Grp Route 5.1 alpha 10-- 7beta Pref: alpha 10-- 7beta 9.1.100 alpha 14--13beta 15--15gamma Pref: alpha 14--13beta 15--15gamma 9.1.200 alpha 10-- 7beta 15--15gamma Pref: alpha 10-- 7beta 15--15gamma 9.2.400 alpha 10-- 7beta Pref: alpha 10-- 7beta Last Command: cnfpref * + Next Command:
Table 11-4:
Parameter Description

channels

Specifies the channel, group, or range of channels for preferred route configuration. The channel specifier has one of the following formats:

  • slot.channel voice connection.

  • slot.port data connection.

  • slot.port.DLCI frame relay connection.

  • remote node.groupname frame relay connection group connection.

  • slot. port.subport FastPAD voice connection.

  • slot.port.subslot.subport FastPAD data connection

A n"*" specifies all locally owned connections and applies only to the "+" and "-".

route

Designates the preferred route for the connection(s) to take through the network. The route is designated by one or more "trunk/node name" pairs. At a given node alpha, for example, entering a route of "12/delta 6/epsilon", would route the connection from alpha to delta via delta's trunk 12. The connection would then go from delta to epsilon via epsilon's trunk 6. A "+" causes the connection's current route to become the preferred route. A "-" removes the connection's preferred route designation.


Table 11-5:
Parameter Description

d

Specifies directed routing. If the preferred route is not available, the connection is failed.

cnfpref - Optional Parameters

dncon

Deactivates (downs) a connection, bundle of connections, a connection group or all connection in a COS or COS range. The dncon command temporarily removes a connection or connections from the network. This command is useful for temporarily removing voice connections when additional bandwidth is necessary for other types of connections.

Connections can be downed immediately or with courtesy. Even with immediate downing, a prompt appears that requests confirmation. With courtesy downing, the system waits until the connection is onhook before downing the connection. Courtesy downing is possible only if the onhook status has been configured with the cnfvchtp command. Courtesy downing is not available for FastPAD connections because the signalling information between the end points is not visible to the IPX or IGX. The upcon command reactivates the voice connections. The up/down status of the voice connections appears in the "State" column of the dspcons screen. The following describes each status.


Table 11-6:
State Description

"OK" (routed)

Connection is activated and able to carry traffic.

"Down"

Connection has been added to the network database but is not activated and is not able to carry traffic.

"OK(Dn)"

Waiting for onhook to occur to allow courtesy down to take place for connection(s) that have been courtesy downed using the dncon command.

"Failed"

Unrouted, but trying to reroute.

Full Name

Down connections

Syntax

dncon {<group | local_chan(s)> | COS <cos_range>} {i | c}

Related Commands

upcon

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX

Lock

Yes

Example 1 Description

dncon 14.1 c

Down connection 14.1 with courtesy

Example 2 Description

dncon 14.1 i

Down connection 14.1 immediately

Example 3 Description

dncon cos 4-8 c

Courtesy down on-hook connections network-wide with COS 4 through 8. This command marks all connections that may be courtesy downed at one time and does not monitor new connections or those that later fit the COS.

Example 4 Description

dncon 3.1.100 i

Immediately down connection 3.1.100.

System Response
pubsigx1 TN SuperUser IGX 32 8.2 Aug. 26 1996 16:51 GMT Local Remote Remote Channel NodeName Channel State Type Compress Code COS 3.1.100 pubsigx1 3.2.200 Ok fr 3.2.200 pubsigx1 3.1.100 Ok fr This Command: dncon 3.1.100 i Down these connections (y/n)?
Example 5 Description

dncon cos 4-8 i

Immediately down all connections network-wide with COS 4 through 8. This command executes once, so if individual connections are subsequently upped or new connections added in this COS range, they remain up.

Example 6 Description

dncon cos 14.1.3

Down FastPAD voice connection 14.1.3

Example 7 Description

dncon cos 14.1.1.5

Down FastPAD data connection 14.1.1.5


Table 11-7: dncon - Parameters
Parameter Description

channels or group

Specifies a group, a channel, or a range of channels to down.

cos range

Specifies the COS or COS range. The range is 0-15.


Table 11-8: dncon - Optional Parameters
Parameter Description

i/c

Specifies immediate downing (i) of the specified connections or courtesy downing (c) of the specified connections.

dspload

Displays both the used and available bandwidth (both in the transmit and receive directions) for each trunk at the specified node. The "transmit" direction is FROM the node specified TO the node at the other end of the trunk. Disabled trunks have their trunk number displayed in dim, reverse video on the screen.

The dspload display reflects the static load model stored by the node and used to determine the bandwidth available for new connections and reroutes. The display does not represent the dynamic utilization of the trunks, which will vary. Some types of connections, such as voice connections using adaptive voice and data connections using DFM suppress packets. While frame relay connections may generate additional packets when bandwidth permits.

When this command is executed at a local node in structured networks, the information displayed is for any node on the intra-domain lines belonging to the same domain. When this command is executed at a junction node, the information displayed is for all inter-domain lines between all junction nodes. The node uses the terminating and through routed connections' calculated load to calculate the trunk load. The connection type (v, c, a, or d) or baud rate (9.6 Kbps, 56 56 Kbps, and so on) and other factors determine its basic load. The calculated trunk load is also modified by the cnfchutl command for connections that use VAD, DFM, or frame relay.

A certain amount of bandwidth is reserved for each trunk (using cnftrk). The reserved bandwidth is available only for high priority packets (e.g. PCC traffic). The node cannot route connections using this reserved bandwidth. The following loading, in packets per second, is calculated for each trunk in each direction:

  total trunk capacity = current load + open space + statistical reserve

If the dspload command includes a trunk number, detailed information for each of the packet types on that line appears. See Example 2. Additional categories of information for frame relay loads on the trunk include Cmax In Use, Cmax Available, and Cmax Capacity.

Full Name

Display connection loading

Syntax

dspload [nodename] [line number] [-j | -l]

Related Commands

dspplnutl

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX

Lock

No

Example 1 Description

dspload

Display the load for all trunks that terminate on the current node.

System Response
alpha TRM YourID:1 IPX 16 8.2 Mar. 16 1996 11:54 PST Packet Line loads for node 'alpha' Units Used Available Reserved Cmax In Use Cmax In Use PLN Xmt Rcv Xmt Rcv Xmt Rcv Xmt Rcv XmtA RcvA XmtB RcvB 10 Pkts Pkts 1760 1744 8304 8320 600 600 0 0 0 0 14 Pkts Pkts 504 504 6896 6896 600 600 20 20 0 0 Last Command: dspload Next Command:
Example 2Description

dspload 10

Display the load for the trunk in slot 10 of the current node.

System Response
sw151 TN SuperUser IGX 16 8.2 Aug. 26 1996 17:05 GMT Configured Packet Line Loading: PLN sw151 10--10 sw150 Load Type Xmt-p Rcv-p lcl NTS 2016 2016 Conid In Use 11 TS 432 432 Conid Available 1760 Voice 208 208 Total Capacity 1771 BData A 0 0 BData B 0 0 Line type is Terrestrial CBR 0 0 Line supports BData Load VBR 0 0 Line does not use ZCS ABR 0 0 Traffic class: Total In Use 2656 2656 V TS NTS FR FST CBR VBR ABR Reserved 992 992 Available 76352 76352 Total Capacity 80000 80000 Last Command: dspload 10 Next Command:
Table 11-9: dspload - Optional Parameters
Parameter Description

nodename

Specifies the node. If a node is not specified, the display shows loading on the local node.

The node must be in the domain where the command is entered unless the node is a junction nodes. If the specified node is a junction node, the display shows loading for junction domain lines.

line number

Specifies the physical line whose loading information is displayed.

l | j

Specifies either a local or a junction node.

dspospace

Displays the open space for a connection route.

Full Name

Display open space for a route

Syntax

dspospace <connection | group>

Related Commands

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX

Lock

No

Example 1 Description

dspospace 4.1.1

Display the open space for the ATM-frame relay connection 4.1.1. The line interface card is a UFM-8C.

System Response
sw110 TN SuperUser IGX 16 8.2 Jan. 22 1997 19:11 GMT Open Space for 4.1.1 Snapshot Domain Local: sw110 8--10.3sw86 6.2-- 6.1sw81 ms_cur_pkts: 524272 ms_cur_cells: 12576 sm_cur_pkts: 4368 sm_cur_cells: 11296 Last Command: dspospace 4.1. Next Command:
Table 11-10: dspospace - Parameters
Parameter Description

connection
or
group

Specifies the connection or connection group.

dsprts

Displays the routes used by all connections at a node. The display shows the trunk numbers and names of all nodes in the path. For FastPAD connections, the displayed connection routes terminate at the IPX or IGX nodes. A blinking trunk indicates a failed line. A tilde trunk (~) indicates a satellite line.

Full Name

Display connection routing

Syntax

dsprts [start group | chan] [nodename]

Related Commands

cnfpref

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX, BPX

Lock

No

Example 1 Description

dsprts

Display the connection routes.

System Response
alpha TRM YourID:1 IPX 16 8.2 Mar. 16 1996 12:50 PST Chan/Grp Route 5.1 alpha 10-- 7beta Pref: Not Configured 9.1.100 alpha 14--13beta 15--15gamma Pref: Not Configured 9.2.400 alpha 14--13beta Pref: Not Configured 14.1 alpha 14--13beta 15--15gamma Pref:(D) alpha 14--13beta 15--15gamma Last Command: dsprts Next Command:
Table 11-11: dsprts - Optional Parameters
Parameter Description

start group or channel

Specifies the starting group or channel with which to begin the display. Channel displays are in numeric order. If no starting channel is specified, the display begins with the first connected channel. Start channel is specified in one of the following formats:

slot.channel voice connection.

slot.port data connection.

slot.port.DLCI frame relay connection.

remote node.groupname frame relay connection group.

slot.port.subport FastPad voice connection.

slot.port.subslot.subport FastPAD data connection.

node name

Specifies that connections from only the local node to the current node are displayed. If no nodename is entered, connections from the local node to all other nodes are displayed.

dsptrkutl

Displays dynamic utilization information for a specified trunk. The trunk must be upped and added to use this command. The following lists the trunk utilization and terminated connection parameters included in the display. The parameter values are updated according to the specified or default interval and the screen remains displayed until the DEL key is depressed. Disabled trunks have their trunk number displayed in dim, reverse video on the screen.


Table 11-12:
Trunk Utilization Parameters Statistics Description

Elapsed Time (seconds)

Elapsed time in seconds.since the command was started

Total Packets Transmitted

Number of packets transmitted during the elapsed time.

Overall Packet Rate

Number of packets transmitted per second during the (pkts/sec)elapsed time.

Overall utilization

Bandwidth used, expressed as a percentage of the available bandwidth during the elapsed time. This is: 100 x ("Total packets transmitted")/("Elapsed Time" x bandwidth (in packets per second)).

Peak Interval Utilization

Bandwidth used, expressed as a percentage of the available bandwidth during the peak interval. This is: 100 x ("Total packets transmitted")/("Peak Interval" x bandwidth (in packets per second)).

Last Interval (seconds)

Elapsed time, in seconds, for the last screen update interval.

Interval packets generated

Number of packets transmitted during the last interval.

Interval packet rate (pkts/sec)

Number of packets transmitted per second during the last interval.

Interval utilization

Bandwidth used expressed as a percentage of the available bandwidth during the last interval. This is: 100 x ("Interval packets transmitted")/("Last Interval" x bandwidth (in packets per second)).

Total Connections

Total number of connections routed over the trunk.

Terminated/Via

Terminated: Number of connections routed over the trunk that terminate at this node.

Via: Number of connections routed over the trunk that do not terminate at this node.


Table 11-13:
Terminated Connection Statistics Description

Voice terminated

Number of voice connections terminated at this node that are routed over his trunk.

Data terminated

Number of data connections terminated at this node that are routed over this trunk.

Frame relay terminated

Number of frame relay connections terminated at this node that are routed over this trunk.

Num voice offhook

Number of voice connections off-hook that are terminated at this node and routed over this trunk.

Connection Type

Voice connection types: c, a, v, p or t.

Connection Num

Number of terminated voice connections of each type:

c, a, v, p and t.

Modem On

Number of terminated connections with modem detected.

Modem V.25

Number of terminated connections with V.25 modem detected.

VAD Enabled

Number of terminated connections with VAD enabled.

Full Name

Display trunk utilization

Syntax

dsptrkutl <trunk number> [interval]

Related Commands

dspload, dspchhist, dsptrkhist

Attributes

Privilege

1-6

Jobs

No

Log

No

Node

IPX, IGX, BPX

Lock

Yes

Example 1 Description

dsptrkutl 5.3

Display trunk utilization for port 3 of the BNI in slot 5. The node is a BPX.

System Response
bootzilla TN SuperUser BPX 15 8.2 Aug. 27 1996 15:21 GMT TRK 5.3 Utilization Display Elapsed time (seconds) 160.1 Terminated Connection Statistics Total cells transmitted 30 Voice terminated 0 Overall cell rate (cells/sec) 0 Data terminated 0 Overall utilization 0% ATM and FR terminated 1584 Peak interval utilization 1% Num voice OffHook 0 Last interval (seconds) 5.1 Interval cells generated 0 Connection Modem Modem VAD Interval cell rate (cells/sec) 0 Type Num On V.25 Enabled Interval utilization 0% c 0 0 0 0 a 0 0 0 - Terminated Connections 1584 v 0 0 0 0 Via Connections and Groups 0 p/t 0 0 0 - This Command: dsptrkutl 5.3 Hit DEL key to quit:
Table 11-14: dsptrkutl - Parameters
Parameter Description

trunk number

Specifies the number of the trunk in the format slot.trunk. If the card has only one trunk, you can enter just the slot.


Table 11-15: dsptrkutl - Optional Parameters
Parameter Description

interval

Specifies the number of seconds between screen updates. The range is 1-60. The default is 5.

prtrts

Prints the connection routes for channels on the IPX or IGX node. It uses the same syntax and prints the same information as the dsprts command. See the dsprts description for output information.

Full Name

Print connection routes

Syntax

prtrts [start_channel] [dest_nodename]

Related Commands

dsprts

Attributes

Privilege

1-6

Jobs

Yes

Log

No

Node

IPX, IGX

Lock

Yes

Example 1 Description

prtrts

Print connection routes.

System Response

None available as command produces hardcopy.


Table 11-16:
Parameter Description

start channel

Specifies the channel with which to print. Channels are printed in numeric order. If no starting channel is specified, the display begins with the first connected channel. Start channel is specified in one of the following formats:

slot.channel voice connection.

slot.port data connection.

slot.port.DLCI frame relay connection.

remote node.groupname frame relay connection group.

slot.port.subport FastPad voice connection.

slot.port.subslot.subport FastPAD data connection.

destination node name

Specifies the printing of connection routes from only the local node to the current node. Without a specified node name, the printout shows connections from the local node to all other nodes.

prtrts - Optional Parameters

upcon

Ups (activates) a connection, bundle of connections, group of connections, or all connections with a COS or COS range. When a connection is upped, the system tries to route. If the connection cannot immediately be routed, the connection is failed and generates a major alarm. The State display column in an upcon or dspcons screen has the following meaning:

· "OK"

(routed).

· "Down"

(downed).

· "OK(Dn)"

(waiting for onhook to occur to allow courtesy down to take place for connection(s) that have been courtesy downed using the dncon command.

· "Failed"

(not routed, but trying).

Full Name

Up a connection

Syntax

upcon {<group | local_chan(s)> | COS <cos_range>}

Related Commands

dncon, dspcon, dspcons

Attributes

Privilege

1-2

Jobs

Yes

Log

Yes

Node

IPX, IGX

Lock

Yes

Example 1 Description

upcon 5.1

Activate connections 5.1

System Response
alpha TRM YourID:1 IPX 16 8.1 Mar. 23 1996 11:33 PST Local Remote Remote Route Channel NodeName Channel State Type Compression Code Avoid COS O 5.1 beta )25.1 Ok 256 7/8 0 L 9.1.100 gamma 8.1.200 Ok fr 0 L 9.1.200 gamma 8.1.300 Ok fr 0 L 9.2.400 beta 19.2.302 Ok fr(Grp) 0 L 14.1 )gamma 15.1 Ok v 0 L Last Command: upcon 5.1 Next Command:
Example 2 Description

upcon 9.1-4

Activate a range of connections 9.1-4

Example 3 Description

upcon alpha

Activate a Frame Relay group connection

Example 4 Description

upcon 9

Activate all downed connections with a COS of 9

Example 5 Description

upcon cos 9-12

Activate all downed connections with a COS of 9-12


Table 11-17: upcon - Parameters
Parameter Description

group or channel(s)

Specifies a group, a channel, or a range of channels to activate.

COS /cos range

Specifies the COS or COS range. The range is 0-15.


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Posted: Fri Jan 19 17:01:35 PST 2001
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