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Table Of Contents
C and D Commands for Cisco DSLAMs with NI-2
clear ip dhcp server statistics
dmt power-management-additional-margin
dsl atuc-1-4dmt rx-attenuation
C and D Commands for Cisco DSLAMs with NI-2
This chapter documents commands that you use to configure Cisco DSLAMs with NI-2. Commands in this chapter are listed alphabetically. For information on how to configure DSL features, refer to the Configuration Guide for Cisco DSLAMs with NI-2.
Note
Commands that are identical to those documented in the Cisco IOS Configuration Fundamentals Command Reference and the ATM and Layer 3 Switch Router Command Reference have been removed from this chapter.
This chapter discusses the following commands:
clear ip dhcp server statistics
dmt power-management-additional-margin
dsl atuc-1-4dmt rx-attenuation
cap baud
To enable upstream or downstream baud (symbol) rates, use the cap baud command in profile configuration mode. Use the no form of the command to disable a previously set baud rate.
cap baud {downstream cap-baudrate | upstream cap-baudrate}
no cap baud {downstream cap-baudrate | upstream cap-baudrate}
Syntax Description
Syntax DescriptionSyntax Description
downstream cap-baudrate
Enable a downstream baud rate. The valid value is 136 K.
upstream cap-baudrate
Enable an upstream baud rate. The valid values are 17 K and 68 K.
Defaults
Downstream: 136 Kbaud is enabled
Upstream: 68 Kbaud and 17 Kbaud are disabled
The following baud rates are always enabled and cannot be disabled:
Downstream: 340 Kbaud, 680 Kbaud, 952 Kbaud
Upstream: 136 Kbaud
Command Modes
Profile configuration
Command History
Usage Guidelines
Baud rates affect bit rates. Enabling more baud rates causes more bit rates to become available on the affected lines (see the "cap bitrate" section). However, the baud rates legally available to you might be determined by tariffs. Consult your organization's legal department before setting the baud rate.
The baud rate settings are mutually independent; you can enable or disable any baud rate without passing data because there are unconfigurable baud rates that you cannot disable (see the "Defaults" section).
Examples
The commands in this example disable the 136 Kbaud rate downstream and enable the 68 Kbaud rate upstream for the profile named issis:
DSLAM# configure terminalDSLAM(config)# dsl-profile issisDSLAM(cfg-dsl-profile)# no cap baud downstream 136kDSLAM(cfg-dsl-profile)# cap baud upstream 68kRelated Commands
cap bitrate
To set the downstream and upstream minimum or maximum bit rates, use the profile configuration command cap bitrate. Use the no form of the command to set bit rates to default values.
cap bitrate minimum downstream min-cap-bitrate upstream min-cap-bitrate
cap bitrate maximum downstream max-cap-bitrate upstream max-cap-bitrate
no cap bitrate {minimum | maximum}
Syntax Description
Defaults
Minimum downstream
0 kbps
Minimum upstream
0 kbps
Maximum downstream
640 kbps
Maximum upstream
91 kbps
Command Modes
Profile configuration
Command History
Usage Guidelines
Only the alarm subsystem uses the minimum bit rate settings. Cisco IOS asserts an alarm if the line card trains at a rate below the configured minimum bit rate. However, no alarm is generated when alarms are disabled for the profile. See the "alarms" section on page 2-11 for more information on enabling and disabling alarms.
Before you use the cap bitrate command, use the cap baud command to enable and disable baud rates. When you use the cap bitrate command, set the maximum bit rates, both downstream and upstream, before you set the minimum bit rates.
You must set baud and bit rate parameters in the order specified because the baud rates that you enable or disable affect the bit rates that are available to you. Also, the maximum bit rates you select affect the minimum bit rates that are available.
Table 3-1 shows bit rate values. In the Valid Values column, values that are always available are shown in bold. Values not shown in bold are unavailable under certain circumstances:
•
•
•
Table 3-1 CAP Bit Rate Values
max-cap-bitrate
Downstream
256, 384, 512, 640, 768, 896, 960, 1024, 1280, 1600, 1920, 2240, 2560, 2688, 3200, 4480, 5120, 6272, 7168
640
Upstream
12, 34, 46, 51, 68, 85, 91, 102, 119, 136, 204, 272, 340, 408, 476, 544, 680, 816, 952, 1088
91
min-cap-bitrate
Downstream
Minimum: 0
Maximum: Equal to the currently configured downstream max-cap-bitrate0
Upstream
Minimum: 0
Maximum: Equal to the currently configured downstream max-cap-bitrate0
1 Values printed in bold are always available.
Examples
The commands in this example set the maximum downstream and upstream bit rates to 7168 kbps and 1088 kbps respectively:
DSLAM# configure terminalDSLAM(config)# dsl-profile issisDSLAM(cfg-dsl-profile)# cap bitrate maximum downstream 7168 upstream 1088Related Commands
cap cpe-signature
The CPE signature indicates the supported feature set for CPE equipment. To set the CPE signature value for each configuration profile, use the cap cpe-signature command in profile configuration mode. Use the no form of the command to set the CPE signature to the default value.
cap cpe-signature cpe-signature
no cap cpe-signature
Syntax Description
Defaults
The CPE signature is disabled (zero) by default.
Command Modes
Profile configuration
Command History
Usage Guidelines
If the CPE signature value that the CPE returns is less than the value configured on the DSLAM, the two devices do not train. When the CPE signature is set to its default value of 0 on the DSLAM, the feature is disabled; the DSLAM attempts to train with the CPE regardless of the signature value that the CPE returns.
Examples
In this example, the command sets the CPE signature to 103 for the DSL profile named issis:
DSLAM# configure terminalDSLAM(config)# dsl-profile issisDSLAM(cfg-dsl-profile)# cap cpe-signature 103DSLAM(cfg-dsl-profile)# endRelated Commands
show dsl profile [profile name]
Displays a specific profile or all profiles.
show dsl interface atm slot#/port#
Displays DSL and ATM status for a port.
cap interleaving-delay
To set the interleaving delay for a profile, use the cap interleaving-delay command in profile configuration mode. Use the no form of the command to set interleaving delay to the default value.
cap interleaving-delay {short | long | none}
no cap interleaving-delay {short | long | none}
Syntax Description
Defaults
long
Command Modes
Profile configuration
Command History
Usage Guidelines
This command changes the amount of delay by setting interleaving depth. It affects downstream traffic only.
Table 3-2 shows the amount of delay (in milliseconds) that results from various combinations of baud rate, constellation, and interleaving delay settings (short or long), in the downstream direction. Interleaving is not used on upstream traffic.
You can choose the interleaving-delay option none only when you enable the 136 K downstream baud rate.
If you configure the interleaving-delay to none but the line card trains at a downstream bit rate that uses a baud rate that is other than 136 K, the actual interleaving-delay value that the system uses is short.
The left column of Table 3-3 lists the downstream maximum bit rates for which the interleaving delay setting none is valid. Because the none setting turns off Reed-Solomon error correction, the actual bit rate on the line will be higher than the configured bit rate, as shown in the right column. The actual bit rate exceeds the configured bit rate because turning off Reed-Solomon error correction reduces the overhead on the line, leaving more bandwidth available to the subscriber.
Examples
In this example, the command sets the interleaving-delay value to none:
DSLAM# configure terminalDSLAM(config)# dsl-profile issisDSLAM(cfg-dsl-profile)# cap interleaving-delay noneDSLAM(cfg-dsl-profile)# endRelated Commands
show dsl interface atm slot#/port#
Displays DSL and ATM status for a port.
show dsl profile [profile name]
Displays a specific profile or all profiles.
cap margin
To set the upstream and downstream signal-to-noise ratio (SNR) margin values for a CAP profile, use the cap margin command. Use the no form of the command to set the margins to the default values.
cap margin downstream cap-margin upstream cap-margin
no cap margin downstream cap-margin upstream cap-margin
Syntax Description
Defaults
Downstream: 3 dB
Upstream: 6 dBCommand Modes
Profile configuration
Command History
Usage Guidelines
SNR margin values are in decibels.
Examples
In this example, the command sets the SNR margin at 8 dB downstream and 5 dB upstream for the DSL profile issis:
DSLAM# configure terminalDSLAM(config)# dsl-profile issisDSLAM(cfg-dsl-profile)# cap margin downstream 8 upstream 5DSLAM(cfg-dsl-profile)# endRelated Commands
show dsl interface atm slot#/port#
Displays DSL and ATM status for a port.
show dsl profile [profile name]
Displays a specific profile or all profiles.
cap psdm
To set the CAP power spectral density mask (PSDM) upstream and downstream values, use the cap psdm command in profile configuration mode. Use the no form of the command to set PSDM to default values.
cap psdm downstream psdm-value upstream psdm-value
no cap psdm downstream psdm-value upstream psdm-value
Syntax Description
psdm-value
Downstream values: -37, -40, -43, -46, -49, -52
Upstream values: -38, -41, -44, -47, -50, -53
Defaults
Downstream: -40 dB m/Hz
Upstream: -38 dB m/HzCommand Modes
Profile configuration
Command History
12.0(8)DA
This command was introduced.
12.1(1)DA
The downstream default was changed from -37 dB to -40 dB.
Usage Guidelines
PSDM values are in decibels relative to one milliwatt.
Examples
In this example, the command sets the CAP PSDM value to -37 dB downstream and -41 dB upstream:
DSLAM# configure terminalDSLAM(config)# dsl-profile issisDSLAM(cfg-dsl-profile)# cap psdm downstream -37 upstream -41DSLAM(cfg-dsl-profile)# endRelated Commands
show dsl interface atm slot#/port#
Displays DSL and ATM status for a port.
show dsl profile [profile name]
Displays a specific profile or all profiles.
clear counters
To clear the interface counters, use the clear counters privileged EXEC command.
clear counters [type slot/port]
Syntax Description
type
Specifies the interface type; one of the keywords listed in Table 3-4.
slot
Number of the slot being configured. Refer to the appropriate hardware manual for slot and port information.
port
Number of the port being configured. Refer to the appropriate hardware manual for slot and port information.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This command clears all the current interface counters from the interface unless you specify the optional arguments type and number to clear only a specific interface type (serial, Ethernet, Token Ring, and so on). Table 3-4 lists the command keywords and their descriptions.
Note
Examples
The following example clears all interface counters:
DSLAM# clear countersThe following example clears the atm 0/1 interface counters:
DSLAM# clear counters atm 0/1Related Commands
show interfaces
Displays the statistical information that is specific to an interface.
clear ip dhcp binding
To delete an automatic address binding from the Cisco IOS Dynamic Host Configuration Protocol (DHCP) server database, use the clear ip dhcp binding privileged EXEC command.
clear ip dhcp binding address | *
Syntax Description
Defaults
No default behavior or values.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
Typically, the address denotes the client IP address. When you use the asterisk (*) character as the address parameter, DHCP clears all automatic bindings.
Use the no ip dhcp pool global configuration command to delete a manual binding.
Examples
The following example deletes the address binding 10.12.1.99 from a DHCP server database:
DSLAM# clear ip dhcp binding 10.12.1.99Related Commands
clear ip dhcp conflict
To clear an address conflict from the Cisco IOS Dynamic Host Configuration Protocol (DHCP) server database, use the clear ip dhcp conflict privileged EXEC command.
clear ip dhcp conflict address | *
Syntax Description
address
The IP address of the host that contains the conflicting address you want to clear.
*
Clears all address conflicts.
Defaults
No default behavior or values.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
The server detects conflicts using a ping session. The client detects conflicts using gratuitous Address Resolution Protocol (ARP). If you use the asterisk (*) character as the address parameter, DHCP clears all conflicts.
Examples
The following example shows an address conflict of 10.12.1.99 being deleted from the DHCP server database:
DSLAM# clear ip dhcp conflict 10.12.1.99Related Commands
show ip dhcp conflict
Displays address conflicts found by a Cisco IOS DHCP server when addresses are offered to the client.
clear ip dhcp server statistics
To reset all Cisco IOS Dynamic Host Configuration Protocol (DHCP) server counters, use the clear ip dhcp server statistics privileged EXEC command.
clear ip dhcp server statistics
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
The show ip dhcp server statistics command displays DHCP counters. All counters are cumulative. The counters are initialized, or set to zero, with this command.
Examples
The following example resets all DHCP counters to zero:
DSLAM# clear ip dhcp server statisticsRelated Commands
clear ip route vrf
To remove routes from the VRF routing table, use the clear ip route vrf EXEC command.
clear ip route vrf vrf-name {* | network [mask]}
Syntax Description
Defaults
No default behavior or values.
Command Modes
EXEC
Command History
Usage Guidelines
Use this command to clear routes from the routing table. Use the asterisk (*) to delete all routes from the forwarding table for a specified VRF, or enter the address and mask of a particular network to delete the route to that network.
Examples
The following example shows how to remove the route to the network 10.13.0.0 in the vpn1 routing table:
DSLAM# clear ip route vrf vpn1 10.13.0.0Related Commands
clear vpdn
To shut down a specified tunnel and all sessions within the tunnel, use the clear vpdn tunnel EXEC command.
clear vpdn tunnel {l2f nas-name | l2tp [remote name] | pppoe | pptp}
Syntax Description
Note
Command Modes
EXEC
Command History
Usage Guidelines
Use this command to clear a specific tunnel and all sessions within the tunnel.
Use this command to isolate problems by forcing a tunnel to come down without unconfiguring the tunnel (the tunnel can be restarted immediately by a user logging in).
If you are using the l2tp keyword, you can clear the tunnel by matching either the remote name or remote name and local name.
Examples
The following example clears a tunnel to a remote peer named sophia:
DSLAM> clear vpdn tunnel l2tp mugsy sophiaclient-identifier
To specify a unique identifier (in dotted-hexadecimal notation) for a Microsoft Dynamic Host Configuration Protocol (DHCP) client, use the client-identifier DHCP pool configuration command. It is valid for manual bindings only. Use the no form of this command to delete the client identifier.
client-identifier unique-identifier
no client-identifier
Syntax Description
unique-identifier
The distinct identification of the client in dotted-hexadecimal notation, for example, 01b7.0813.8811.66.
Defaults
No default behavior or values.
Command Modes
DHCP pool configuration
Command History
Usage Guidelines
Microsoft DHCP clients require client identifiers instead of hardware addresses. The client identifier is formed by concatenating the media type and the MAC address. For example, the Microsoft client identifier for Ethernet address b708.1388.f166 is 01b7.0813.88f1.66, where 01 represents the Ethernet media type. For a list of media type codes, refer to the "Address Resolution Protocol Parameters" section of RFC 1700, Assigned Numbers.
Examples
The following example specifies the client identifier for Mac address b7.0813.8811.66 in dotted-hexadecimal notation:
DSLAM(config)#ip dhcp pool 1DSLAM(dhcp-config)#client-identifier 01b7.0813.8811.66Related Commands
client-name
To specify the name of a Dynamic Host Configuration Protocol (DHCP) client, use the client-name DHCP pool configuration command. The client name should not include the domain name. Use the no form of this command to remove the client name.
client-name name
no client-name
Syntax Description
name
Specifies the client name, using standard ASCII characters. The client name should not include the domain name. For example, the name mars should not be specified as mars.cisco.com.
Defaults
No default behavior or values.
Command Modes
DHCP pool configuration
Command History
Examples
The following example specifies a string client1 to be the name of the client:
DSLAM(config)# ip dhcp pool 1DSLAM(dhcp-config)# client-name client1Related Commands
clock source
To select a transmit clock source for an atm interface, use the clock source interface configuration command. When you assign a link to an IMA group interface, this command has no effect unless the link is the common clock source in the CTC IMA group. When you change the link back from an IMA group interface to g.804 mode, the system reflects the changes. To return the clock source to the default, use the no form of this command.
clock source {loop-timed | network-derived} [protection | working | <cr>]
Syntax Description
Defaults
The clock source is network derived by default (clock source network-derived).
Command Modes
Interface configuration.
Command History
12.1(4)DA
This command was introduced.
12.1(7)DA
The keywords working and protection were added.
Usage Guidelines
The protection and working keywords apply only to SONET automatic protection switching.
Examples
The following example shows how to enable the loop-timed clocking mode on the protection fiber on atm 0/2:
DSLAM> enableDSLAM# configure terminalDSLAM(config)# interface atm 0/2DSLAM(config-if)# clock source loop-timed protectionRelated Commands
show controllers
Displays information on working and protection fibers.
show network-clocks
Displays the local clock and the peer clock source.
cns config initial
To start the Cisco Network Services (CNS) Configuration Agent and initiate an initial configuration, use the cns config initial command in global configuration mode. To remove the existing cns config initial command from the running configuration of the routing device, use the no version of this command.
cns config initial host
no cns config initial host
Syntax Description
Defaults
Default port number is 80. Default web page of the initial configuration is /Config/config.asp.
Command Modes
Global configuration
Command History
Usage Guidelines
Use this command to start the CNS Configuration Agent and begin an initial configuration. The Configuration Agent gets the initial configuration for the routing device from the specified server. When this command is used with the cns event command, the event bus displays one of the following status messages:
•
•
•
Related Commands
debug cns config
Turns on debug messages related to the CNS Configuration Agent.
show cns config
Displays information about the CNS Configuration Agent.
cns config partial
To start the CNS Configuration Agent and initiate a partial configuration, use the cns config partial command in global configuration mode. To shut down the partial configuration, use the no version of this command.
cns config partial host
no cns config partial host
Syntax Description
Defaults
Default port number is 80.
Command Modes
Global configuration
Command History
Usage Guidelines
Use this command to start the CNS Configuration Agent and initiate a partial configuration. One of the following status messages displays:
•
•
•
Related Commands
debug cns config
Turns on debug messages related to the CNS Configuration Agent.
show cns config
Displays information about the CNS Configuration Agent.
cns event
To configure the Cisco Networking Services (CNS) event gateway, use the cns event command in global configuration mode. To remove the specified event gateway from the gateway list, use the no version of this command
cns event host
no cns event host
Syntax Description
Defaults
Default port number is 11011.
Command Modes
Global configuration
Command History
Usage Guidelines
Use this command to enable the CNS Event Gateway.
Related Commands
debug cns config
Turns on debug messages related to the CNS Configuration Agent.
show cns event
Displays information about the CNS Event Agent.
debug cns config
To turn on debug messages related to the CNS Configuration Agent, use the debug cns config command in EXEC mode. To turn off debug messages related to the Configuration Agent, use the no version of this command.
debug cns config {all | connection | agent}
no debug cns config {all | connection | agent}
Syntax Description
all
Displays all debug messages.
connection
Displays connection handler messages.
agent
Displays Configuration Agent messages.
Defaults
No default behavior or values.
Command Modes
EXEC
Command History
Usage Guidelines
Use this command to turn on or off debug messages related to the Configuration Agent.
Related Commands
debug cns event
To turn on debug messages related to the Cisco Networking Services (CNS) event gateway, use the debug cns event command in EXEC mode. To turn off the debug messages related to the event gateway, use the no version of this command.
debug cns event {all | subscriber | agent | connection}
no debug cns event {all | subscriber | agent | connection}
Syntax Description
Defaults
No default behavior or values.
Command Modes
EXEC
Command History
Usage Guidelines
Use this command to turn on or off debug messages related to the event gateway.
Related Commands
cns event
Configures the CNS event gateway.
show cns event
Displays information about the CNS event agent.
debug ip dhcp server
To enable Cisco IOS Dynamic Host Configuration Protocol (DHCP) server debugging, use the debug ip dhcp server privileged EXEC command. Use the no form of this command to disable DHCP server debugging.
debug ip dhcp server {events | packets | linkage}
no debug ip dhcp server {events | packets | linkage}
Syntax Description
Defaults
DHCP server debugging is not enabled.
Command History
Examples
The first example below shows a combination of DHCP server events and decoded receptions and transmissions. The second example below shows database linkage information.
DSLAM# debug ip dhcp server eventsDSLAM#debug ip dhcp server packetsDHCPD:DHCPDISCOVER received from client 0b07.1134.a029 through relay 10.1.0.253.DHCPD:assigned IP address 10.1.0.3 to client 0b07.1134.a029.DHCPD:Sending DHCPOFFER to client 0b07.1134.a029 (10.1.0.3).DHCPD:unicasting BOOTREPLY for client 0b07.1134.a029 to relay 10.1.0.253.DHCPD:DHCPREQUEST received from client 0b07.1134.a029.DHCPD:Sending DHCPACK to client 0b07.1134.a029 (10.1.0.3).DHCPD:unicasting BOOTREPLY for client 0b07.1134.a029 to relay 10.1.0.253.DHCPD:checking for expired leases.DSLAM# debug ip dhcp server linkageDHCPD:child pool:10.1.0.0 / 255.255.0.0 (subnet10.1)DHCPD:parent pool:10.0.0.0 / 255.0.0.0 (net10)DHCPD:child pool:10.0.0.0 / 255.0.0.0 (net10)DHCPD:pool (net10) has no parent.DHCPD:child pool:10.1.0.0 / 255.255.0.0 (subnet10.1)DHCPD:parent pool:10.0.0.0 / 255.0.0.0 (net10)DHCPD:child pool:10.0.0.0 / 255.0.0.0 (net10)DHCPD:pool (net10) has no parent.Related Commands
show ip dhcp bindings
Displays address bindings on the Cisco IOS DHCP server.
show ip dhcp database
Displays Cisco IOS DHCP server database agent information.
s
default
To reset a VPDN group command or a VPDN subgroup command to its default value, use the default command.
default {accept-dialin | accept-dialout | ip | request-dialin | request-dialout | source-ip}
Syntax Description
Defaults
Disabled
Command Modes
VPDN group mode
VPDN subgroup modes
Command History
Usage Guidelines
Caution
Examples
The following example shows an LNS configured to accept L2F dial-in and L2TP dial-out:
DSLAM(config)#vpdn enableDSLAM(config)# vpdn-group 1DSLAM(config-vpdn)# accept-dialinDSLAM(config-vpdn-acc-in)# protocol l2tpDSLAM(config-vpdn-acc-in)# virtual-template 1DSLAM(config-vpdn-acc-in)# local name reubenDSLAM(config-vpdn-acc-in)# initiate-to ip 10.3.2.1DSLAM(config-vpdn-acc-in)# l2f ignore-mid-sequenceDSLAM(config-vpdn-acc-in)# l2tp ip udp checksumIf you then issue the default protocol command in request-dialout mode, the configuration will look like this:
DSLAM(config)# vpdn-group 1DSLAM(config-vpdn)# accept-dialinDSLAM(config-vpdn-acc-in)# protocol l2fDSLAM(config-vpdn-acc-in)# virtual-template 1DSLAM(config-vpdn-req-out)# local name reubenDSLAM(config-vpdn-req-out)# initiate-to ip 10.3.2.1DSLAM(config-vpdn-req-out)# l2f ignore-mid-sequenceIf you issue the no accept-dialin command when the LNS is configured as in the first example, the configuration will change to this:
DSLAM(config)# vpdn-group 1DSLAM(config-vpdn)# request-dialoutDSLAM(config-vpdn-req-out)# protocol l2tpDSLAM(config-vpdn-req-out)# pool-member 1DSLAM(config-vpdn-req-out)# local name reubenDSLAM(config-vpdn-req-out)# initiate-to ip 10.3.2.1DSLAM(config-vpdn-req-out)# l2tp ip udp checksumdefault-router
To specify the default router list for a Dynamic Host Configuration Protocol (DHCP) client, use the default-router DHCP pool configuration command. Use the no form of this command to remove the default router list.
default-router address [address2 ... address8]
no default-router
Syntax Description
address
Specifies the IP address of a router. One IP address is required, although you can specify up to eight addresses in one command line.
Defaults
No default behavior or values.
Command Modes
DHCP pool configuration
Command History
Usage Guidelines
The IP address of the router should be on the same subnet as the client subnet. You can specify up to eight routers in the list. Routers are listed in order of preference (address1 for the most preferred router, address2 for the next most preferred router, and so on).
Examples
The following example specifies 10.12.1.99 as the IP address of the default router:
DSLAM(config)#ip dhcp pool 1DSLAM(dhcp-config)# default-router 10.12.1.99Related Commands
ip dhcp pool
Configures a DHCP address pool on a Cisco IOS DHCP server and enters DHCP pool configuration mode.
dmt bitrate
To set the maximum and minimum allowed bit rates for the fast or interleaved DMT profile parameters, use the dmt bitrate profile configuration command. To reset this command to the default value, use the no form of this command.
dmt bitrate maximum {fast | interleaved} downstream dmt-bitrate upstream dmt-bitrate
dmt bitrate minimum {fast | interleaved} downstream dmt-bitrate upstream dmt-bitrate
Syntax Description
dmt-bitrate
The DMT bit rate is given as a multiple of 32 kbps. If you enter a nonmultiple of 32 kbps, the system rejects and ends the command. See the allowed ranges and default values in Table 3-5.
fast
DMT fast latency path.
interleaved
DMT interleaved latency path.
Defaults
•
•
•
•
Command Modes
Profile configuration
Command History
Usage Guidelines
Only the alarm subsystem uses the minimum bit rate settings. Cisco IOS asserts an alarm if the line card trains at a rate below the configured minimum bit rate. However, no alarm is generated when alarms are disabled. See the "alarms" section on page 2-11 for more information on enabling and disabling alarms.
If alarms are enabled for the profile, setting the DMT minimum bit rate to 0 disables the associated DMT minimum bit rate alarm.
Table 3-5 lists the allowable DMT bit rate ranges and default values.
Caution
Setting a parameter to its current value does not cause a retrain. If a port is training when you change the parameter, the port untrains and retrains to the new parameter.
Examples
In this example, the command sets the maximum interleaved bit rate of the default profile to 3200 kbps downstream and 640 kbps upstream:
DSLAM# configure terminalDSLAM(config)# dsl-profile defaultDSLAM(cfg-dsl-profile)# dmt bitrate maximum interleaved downstream 3200 upstream 640Related Commands
dmt check-bytes
To set upstream and downstream forward error correction (FEC) check (redundancy) bytes, use the dmt-checkbytes profile configuration command. To reset this command to the default value, use the no form of this command.
dmt check-bytes {fast | interleaved} downstream bytes upstream bytes
Syntax Description
bytes
Upstream and downstream FEC check bytes. The allowed values are 0, 2, 4, 6, 8, 10, 12, 14, and 16.
fast
DMT fast latency path.
interleaved
DMT interleaved latency path.
Defaults
Command Modes
Profile configuration
Command History
Usage Guidelines
Caution
Increasing the number of check bytes improves error correction but slows performance. Set FEC check bytes for a specific profile.
Setting a parameter to its current value does not cause a retrain. If a port is training when you change the parameter, the port untrains and retrains to the new parameter.
Conditions on the line, the configured bit rate, and the capabilities of the ATU-R CPE affect the achievable value for this parameter. As a result, the check-bytes value to which the line trains might be smaller than the value you configure. If you want to use more check bytes than the system is allowing you, use the dmt bitrate command to reduce the bit rate.
Use the command show dsl interface atm slot#/port# to display the configured and actual check-byte values for the connection.
Examples
In this example, the command sets the interleaved FEC check-bytes for the default profile to 12 downstream and 6 upstream:
DSLAM# configure terminalDSLAM(config)# dsl-profile defaultDSLAM(cfg-dsl-profile)# dmt check-bytes interleaved downstream 12 upstream 6Related Commands
None.
dmt codeword-size
To set codeword size for upstream and downstream FEC check (redundancy) bytes, use the dmt codeword-size command.
dmt codeword-size downstream {symbols | auto} upstream {symbols | auto}
Syntax Description
Defaults
Downstream: auto
Upstream: auto
Command Modes
Profile configuration
Command History
Usage Guidelines
Caution
Setting a parameter to its current value does not cause a retrain. If a port is training when you change this parameter, the port untrains and retrains to the new parameter.
Note
Examples
In this example, the command sets the codeword size for the default profile to 8 upstream and to auto downstream:
DSLAM# configure terminalDSLAM(config)# dsl-profile defaultDSLAM(cfg-dsl-profile)# dmt codeword-size downstream auto upstream 8Related Commands
None
dmt encoding trellis
Trellis coding is a method of performing forward error correction. Improved error correction involves a decrease in speed. You enable or disable trellis coding for a specific profile.
To enable trellis coding for a profile, use the dmt encoding trellis command. To disable trellis coding for a profile, use the no form of the command.
dmt encoding trellis
no dmt encoding trellis
Syntax Description
This command has no keywords or arguments.
Defaults
Disabled
Command Modes
Profile configuration
Command History
Usage Guidelines
Caution
Setting a parameter to its current value does not cause a retrain. If a port is training when you change this parameter, the port untrains and retrains to the new parameter.
Examples
In this example, the command turns off dmt encoding trellis for the default profile:
DSLAM# configure terminalDSLAM(config)# dsl-profile defaultDSLAM(cfg-dsl-profile)# no dmt encoding trellisRelated Commands
None.
dmt interleaving-delay
To set the interleaving delay parameter, use the dmt interleaving-delay command.
dmt interleaving-delay downstream delay-in-usecs upstream delay-in-usecs
Syntax Description
delay-in-usecs
Enter the interleaving delay in microseconds. Allowable values are 0, 1000, 2000, 4000, 8000, and 16000 microseconds.
Defaults
Downstream: 16000 microseconds
Upstream: 16000 microseconds
Command Modes
Profile configuration
Command History
Usage Guidelines
Caution
Setting this parameter to its current value does not cause a retrain. If a port is training when you change the value, the port untrains and retrains to the new value.
Note
Examples
In this example, the command sets the interleaving delay of the default profile to 2000 microseconds downstream and 4000 microseconds upstream:
DSLAM# configure terminalDSLAM(config)# dsl-profile defaultDSLAM(cfg-dsl-profile)# dmt interleaving-delay downstream 2000 upstream 4000Related Commands
None
dmt margin
To set upstream and downstream signal-to-noise ratio (SNR) margins for a DMT profile, use the dmt margin command. To reset this command to the default value, use the no form of this command.
dmt margin downstream dmt-margin upstream dmt-margin
Syntax Description
Defaults
Downstream: 6 dB
Upstream: 6 dB
Command Modes
Profile configuration
Command History
Usage Guidelines
Caution
Setting a parameter to its current value does not cause a retrain. If a port is training when you change this value, the port untrains and retrains to the new value.
Note
Examples
In this example, the command sets the SNR DMT margins of the default profile to 12 dB downstream and 6 dB upstream:
DSLAM# configure terminalDSLAM(config)# dsl-profile defaultDSLAM(cfg-dsl-profile)# dmt margin downstream 12 upstream 6Related Commands
None.
dmt minrate-blocking
To force a port not to retrain when actual bit rates fall below the values configured in the dmt bitrate minimum command, use the dmt minrate-blocking command. To disable dmt minrate-blocking, use the no form of the command.
dmt minrate-blocking
Syntax Description
This command has no arguments or keywords.
Defaults
The default configuration, no dmt minrate-blocking, generates a minor alarm when the bit rates on a DMT port violate the minimum allowed bit rates that are specified in the dmt bitrate minimum command (if alarms are enabled in the DSL profile).
Command Modes
Profile configuration
Command History
Usage Guidelines
To specify the bit rate below which a DMT port will not retrain, use the dmt bitrate minimum command.
Examples
The following example describes how to enable dmt minrate-blocking:
DSLAM# configure terminalDSLAM(config)# dsl-profile 8xDMTDSLAM(cfg-dsl-profile)# dmt minrate-blockingdmt operating-mode
To modify the operating mode of a line in the DSL profile, use the dmt operating-mode command. To set the operating mode to the default value, use the no form of the command.
dmt operating-mode {auto | g992-1 | g992-2 | t1-413}
no dmt operating-mode
Syntax Description
Defaults
auto
Command Modes
Profile configuration
Command History
12.0(5)DA
This command was introduced.
12.1(1)DA
The g992-1, g992-2 , and t1-413 keywords were added; the splitterless keyword was removed.
Usage Guidelines
Caution
If a port is training when you change the current value, the port untrains and retrains to the new value.
Note
Examples
In this example, the command sets the operating mode of the default profile to g992-1:
DSLAM# configure terminalDSLAM(config)# dsl-profile defaultDSLAM(cfg-dsl-profile)# dmt operating-mode g992-1Related Commands
dmt overhead-framing
To set the overhead framing mode, use the dmt overhead-framing command.To reset this command to the default value, use the no form of this command.
dmt overhead-framing {mode0 | mode1 | mode2 | mode3}
Syntax Description
Defaults
Mode3
Command Modes
Profile configuration
Command History
Usage Guidelines
Note
There are two types of ADSL framing:
•
•
There are also two versions of full overhead:
•
•
You select the type of ASDL framing by choosing one of four modes:
•
•
•
•
Note
The number of overhead bytes per frame varies according to the overhead framing mode and the operating mode, as shown in Table 3-6.
Table 3-6 Overhead Bytes per Frame
Mode 0
4
3
—
—
Mode 1
3
3
—
—
Mode 2
2
2
—
—
Mode 3
1
1
1
1
If, during the training sequence, the ATU-R indicates a lower framing structure than that specified by the ATU-C, the ATU-C falls back to the framing structure number indicated by the ATU-R.
Management requirements drive the determination of overhead, full, or reduced. Full overhead provides more bandwidth to the embedded operations channel (EOC), enabling higher polling rates. However, reduced overhead provides enough bandwidth to satisfy typical applications.
If an ADSL line supports an ATM link, you must choose a structure that disables synchronization control. If an ADSL line is supporting an STM link and the ADSL line interface has a clock tightly coupled to the stratum clock, synchronization control is not necessary.
The dmt overhead-framing command does not cause port retrain when you change the parameter.
Examples
In this example, the command sets the overhead framing mode in the profile named 8xDMT.
DSLAM# configure terminalDSLAM(config)# dsl-profile 8xDMTDSLAM(cfg-dsl-profile)# dmt overhead-framing mode2Related Commands
dmt power-management-additional-margin
To set power management mode for a DMT profile, use the dmt power-management-additional-margin command. To reset this command to the default value, use the no form of this command.
dmt power-management-additional-margin downstream dmt margin upstream dmt margin
Syntax Description
Defaults
The default no dmt power-management-additional-margin sets both the downstream and upstream values to 0 dB. The following warning message appears when the power management feature is disabled by either the no dmt power-management-additional-margin command or by setting the values explicitly to 0dB: "warning: A `power-management-additional-margin' value of 0dB disables the respective power management feature."
Command Modes
Profile configuration
Command History
Usage Guidelines
The 8xDMT line card can run in power-management mode in the G.dmt or the T1.413 mode. The resulting power cutback produces a reduction in power dissipation and crosstalk. Only 8xDMT line cards support power management. All CPE may not support the DSL functionality for power management to function correctly. Check with a Cisco customer representative to verify CPE compatibility with the 8xDMT power management feature.
You control the Power Management feature by issuing a dmt power-management-additional-margin command inside a profile and assigning that profile to a line card interface. This IOS command allows you to set the additional margin for each channel from 0 dB (off) to 15 dB. This sets the additional margin that will be added to the target margin. If the sum of the target margin and additional margin exceeds 15dB, it is capped at 15dB. If the actual margin of the line is higher than the sum of the configured target and additional margin, and all the above conditions are met, then power management attempts to reduce the actual margin, and as a consequence the power level as well.
Not all CPE support power management. If you connect an unsupported CPE to a port on which power management is turned on, you will not see a reduction in the actual margin or power level. The operating modes supported by power management are T1.413and g-992-1 (g.dmt). A reduction in the power level occurs if there is excess margin on the line. For the downstream direction, if there is excess margin, then IOS displays a reduction in margin for the modes listed above, and a reduction in transmit power for T1.413 mode. For the upstream direction, if there is excess margin, then IOS displays a reduction in the margin for g-992-1 mode only. IOS will not display a reduction in transmit power for the upstream direction.
The following warning message appears when you enable the power management feature:
"warning: If sum of `power-management-additional-margin' and the configured `margin' exceeds 15dB, the resulting value will be capped at 15dB."Examples
In the following example, power management would begin at 9dB because the orginal margin is 6dB and the additional margin is 3dB:
DSLAM# config terminalDSLAM(config)# dsl-profile austinDSLAM(cfg-dsl-profile)# dmt margin downstream 6 upstream 6DSLAM(cfg-dsl-profile)# dmt power-management-additional-margin downstream 3 upstream 3Related Commands
dmt margin
Sets upstream and downstream signal-to-noise ratio (SNR) margins for a DMT profile.
dmt rate-adaptation enable
DMT rate adaptation monitors upstream and downstream DMT ports for signal-to-noise ratio (SNR) margins during specified time intervals. If the system detects an unacceptable SNR margin and that margin persists for the specified time interval, the port retrains at a lower bit rate to improve the SNR margins. To enable rate adaptation on a DMT port, use the dmt rate-adaptation enable command at the DSL profile configuration prompt. To disable dmt rate adaptation, use the no form of the command.
dmt rate-adaptation enable
Syntax Description
This command has no arguments or keywords.
Defaults
Enabling dmt rate-adaptation configures the dmt rate-adaptation interval and dmt rate-adaptation margin commands with their default values. For information on the default values of dmt rate-adaptation interval and dmt rate-adaptation margin, see the "dmt rate-adaptation interval" section and the "dmt rate-adaptation margin" section.
Command Modes
DSL profile configuration
Command History
Usage Guidelines
If you want to modify the default configuration of the dmt rate-adaptation interval and dmt rate-adaptation margin commands, see the "dmt rate-adaptation interval" section and the "dmt rate-adaptation margin" section.
Examples
The following example enables dmt rate-adaptation with default interval and margin values:
DSLAM# config terminalDSLAM(config)# dsl-profile austinDSLAM(cfg-dsl-profile)# dmt rate-adaptation enableRelated Commands
dmt rate-adaptation interval
To change the intervals during which a DMT port is monitored for signal-to-noise ratio (SNR) margins, use the dmt rate adaptation interval command in DSL profile configuration mode. To disable dmt rate adaptation interval, use the no form of this command.
dmt rate-adaptation interval {downshift [downstream number-of eoc-updates upstream seconds]}
Syntax Description
downshift
Indicates that a line with excessive SNR margins retrains to a lower bit rate.
downstream
Tells Cisco IOS to monitor downstream ports for SNR margins that exceed those specified in the dmt rate-adaptation margin command.
number-of eoc-updates
Specifies the monitoring interval on a downstream DMT port.
Note
upstream
Tells Cisco IOS to monitor upstream ports for SNR margins that exceed those specified in the dmt rate-adaptation margin command.
seconds
Specifies the monitoring interval in seconds on an upstream DMT port.
Defaults
The following default settings are for the dmt rate-adaptation interval:
•
Note
•
Command Modes
DSL profile configuration
Command History
Usage Guidelines
Use the dmt rate-adaptation interval command to specify the duration over which line margins are checked on a DMT port. The dmt rate-adaptation interval command works in conjunction with the dmt rate-adaptation margin command. If the actual SNR margins on a port remain lower than the margins configured in the dmt rate-adaptation margin command, for the duration of time specified in the dmt rate-adaptation interval command, the line drops and retrains to a lower bit rate, to improve SNR margin quality on the line.
Note
Examples
The following example configures a downstream monitoring interval of roughly 60 to 150 seconds. The upstream monitoring interval is 20 seconds.
DSLAM# configure terminalDSLAM(config)# dsl-profile austinDSLAM(cfg-dsl-profile)# dmt rate-adaptation interval downshift downstream 10 upstream 20Related Commands
dmt rate-adaptation enable
Turns on rate adaptation.
dmt rate-adaptation margin
Sets the SNR margins below which a DMT port retrains to a lower bit rate.
dmt rate-adaptation margin
To configure the minimum acceptable SNR margins on a DMT port, which forces the port to retrain when unacceptable margins exist for the duration of the dmt rate-adaptation interval, use the dmt rate-adaptation margin command in DSL profile configuration mode. To disable the dmt rate adaptation margin, use the no form of this command.
dmt rate-adaptation margin {min [downstream dB upstream dB]}
Syntax Description
Defaults
The default configuration is derived from the no dmt rate-adaptation enable command. This command specifies minimum upstream and downstream SNR margins of 0 dB.
Command Modes
DSL profile configuration
Command History
Usage Guidelines
Use the dmt rate-adaptation margin command to configure the acceptable SNR margin thresholds on a specified port. The dmt rate-adaptation margin command works in conjunction with the dmt rate-adaptation interval command. If the actual SNR margins on a port remain lower than the margins configured in the dmt rate-adaptation margin command, for the duration of time specified in the dmt rate-adaptation interval command, the line drops and retrains to a lower bit rate, to improve SNR margin quality on the line.
Note
Defaults
The following example describes how to configure dmt rate-adaptation margin:
DSLAM# configure terminalDSLAM(config)# dsl-profile austinDSLAM(cfg-dsl-profile)# dmt rate-adaptation margin min downstream 10 dB upstream -10Related Commands
dmt rate-adaptation enable
Turns on rate adaptation.
dmt rate-adaptation interval
Configures the intervals at which DMT ports are monitored for substandard SNR margins.
dmt training-mode
To modify the training mode in a DMT profile, use the dmt training-mode command in profile configuration mode. To set the training mode in a DMT profile to the default setting (quick), use the no form of the command.
dmt training-mode {standard | quick}
no dmt training-mode
Syntax Description
Note
Defaults
Quick
Note
Command Modes
Profile configuration
Command History
Usage Guidelines
Quick-training mode is recommended for all interfaces.
Caution
Examples
In this example, the command sets the training mode of the default profile to standard:
DSLAM# configure terminalDSLAM(config)# dsl-profile defaultDSLAM(cfg-dsl-profile)# dmt training-mode standardRelated Commands
dns-server
To specify the Domain Name System (DNS) IP servers that are available to a Dynamic Host Configuration Protocol (DHCP) client, use the dns-server DHCP pool configuration command. Use the no form of this command to remove the DNS server list.
dns-server address [address2 ... address8]
no dns-server
Syntax Description
address
Specifies the IP address of a DNS server. One IP address is required, although you can specify up to eight addresses in one command line.
Defaults
If DNS IP servers are not configured for a DHCP client, the client cannot correlate host names to IP addresses.
Command Modes
DHCP pool configuration
Command History
Usage Guidelines
Servers are listed in order of preference (address1 for the most preferred server, address2 for the next most preferred server, and so on).
Examples
The following example specifies 10.12.1.99 as the IP address of the domain name server of the client:
DSLAM(config)#ip dhcp pool 1DSLAM(dhcp-config)# dns-server 10.12.1.99Related Commands
domain-name
Specifies the domain name for a DHCP client.
ip dhcp pool
Configures a DHCP address pool on a Cisco IOS DHCP server and enters DHCP pool configuration mode.
domain-name
To specify the domain name for a Dynamic Host Configuration Protocol (DHCP) client, use the domain-name DHCP pool configuration command. Use the no form of this command to remove the domain name.
domain-name domain
no domain-name
Syntax Description
Defaults
No default behavior or values.
Command Modes
DHCP pool configuration
Command History
Examples
The following example specifies cisco.com as the domain name of the client:
DSLAM(config)#ip dhcp pool 1DSLAM(dhcp-config)# domain-name cisco.comRelated Commands
dsl atuc-1-4dmt rx-attenuation
The dsl atuc-1-4dmt rx-attenuation global configuration command turns on a received power attenuator in all of the 4xDMT line cards in a chassis. This command also automatically retrains all the ports on all of the 4xDMT line cards.
dsl atuc-1-4dmt rx-attenuation
Syntax Description
This command has no arguments or keywords.
Defaults
dsl atuc-1-4dmt rx-attenuation
Command Modes
Global configuration
Command History
Usage Guidelines
You can determine the state of this setting by using the show running-config command to check for no dsl atuc-1-4dmt rx-attenuation. The default setting, dsl atuc-1-4dmt rx-attenuation, is not displayed by show running-config.
Examples
In this example, the received power attenuator in all of the 4xDMT line cards in a chassis is turned off.
DSLAM# configure terminalDSLAM(config)# no dsl atuc-1-4dmt rx-attenuationRelated Commands
show running-config
Displays the running configuration for every currently defined profile, including the default.
dsl circuit
To assign an identifier to a DSL circuit, use the dsl circuit interface configuration command. To remove an identifier from a DSL circuit (that is, to leave the field blank), use the no form of the command.
dsl circuit circuit-id
no dsl circuit
Syntax Description
Defaults
There is no default value for this command.
Command Modes
Interface configuration
Command History
12.0(5)DA
This command was introduced.
12.1(1)DA
DSL circuit identifier capability was added.
Usage Guidelines
If different circuit identifiers are assigned to the same interface, the latest assigned circuit ID takes precedence. You can modify an identifier to a DSL circuit by assigning a different circuit ID to the same interface.
Examples
In this example, the circuit ID 341 is assigned to slot 7, port 3.
DSLAM# configure terminalDSLAM(config)# interface atm 7/3DSLAM(config-if)# dsl circuit 341Related Commands
dsl-copy-profile
To copy a DSL profile, use the dsl-copy-profile command.
dsl-copy-profile [force] source source-profile destination new-profile
Syntax Description
force
Overwrite the destination file, if it exists.
source-profile
The profile whose information you want to copy to another profile.
new-profile
The destination profile.
Defaults
There is no default value for this command.
Command Modes
Global configuration
Command History
12.0(5)DA
This command was introduced.
12.1(1)DA
The capability to create a copy of an SDSL profile was added.
Usage Guidelines
If the destination profile indicated in this command does not exist, dsl-copy-profile creates it. The command then copies all configuration values in the source profile to the destination profile.
Note
Examples
This command copies the default profile to a profile named my_default. If my_default does not exist, the command creates it.
DSLAM# configure terminalDSLAM(config)# dsl-copy-profile force source default destination my_defaultRelated Commands
dsl-profile
To create a DSL profile, or to select an existing profile for modification, use the dsl-profile command in global configuration mode. To delete a DSL profile, use the no form of the command.
dsl-profile profile-name
no dsl-profile profile-name
Note
Syntax Description
profile-name
The name of the profile you want to create, or an existing profile you want to delete or modify.
Defaults
Initially, every newly created profile has the system defined default values.
Note
Command Modes
Global configuration
Command History
Usage Guidelines
A profile is a named list of configured items. To configure a subscriber, you must attach a profile to that subscriber port. You can change the configured items for a subscriber by changing that subscriber profile.
You configure a port by using a configuration profile, rather than by direct configuration.
If you modify an existing profile, the change that you make takes effect on every ADSL port linked to that profile.
When you use the dsl-profile command, you might create a new profile with system-defined default values. The system automatically names this new profile "default."
If you change the default profile, the change does not propagate to the children of that default profile.
This configuration profile approach is in keeping with ADSL MIB standards.
Examples
This command implicitly creates a DSL profile named example, if it does not already exist. After you execute the steps shown here, you can modify the parameters for this profile:
DSLAM# configure terminalDSLAM(config)# dsl-profile exampleDSLAM(cfg-dsl-profile)#In this example, the command modifies the default profile:
DSLAM# configure terminalDSLAM(config)# dsl-profile defaultDSLAM(cfg-dsl-profile)#Related Commands
dsl profile
To attach a port to a profile, use the dsl profile command in interface configuration mode. To detach the port from its profile and attach the default profile, use the no form of the command.
dsl profile [profile-name]
no dsl profile
Note
Syntax Description
Defaults
By default, every port is attached to a special profile named "default."
Command Modes
Interface configuration
Command History
Usage Guidelines
A profile is a named list of configured items. To configure a subscriber, you must attach a profile to that subscriber port. You can change the configured items for a subscriber by changing that subscriber profile.
Except for a few dynamic operational modes, port configuration takes place through a configuration profile, rather than by direct configuration.
If you modify an existing profile, the change that you make takes effect on every ADSL port linked to that profile.
This configuration profile approach is in keeping with ADSL MIB standards.
The DSLAM implementation uses the dynamic profile approach, as opposed to the static profile approach. The dynamic profile approach supports a many-to-one correspondence between ports and profiles; that is, there can be one profile for many ports, but one port cannot have more than one profile. Also, with the dynamic approach, profiles are created and deleted dynamically (with the exception of a special profile named default). Direct configuration of port parameters is not allowed.
All ports have attached profiles. If you do not assign a profile to a port, the system, by default, assigns the profile named "default."
Examples
In this example, the command attaches the profile test1 to slot 20, port 1:
DSLAM# configure terminalDSLAM(config)# interface atm 20/1DSLAM(config-if)# dsl profile test1Related Commands
dsl subscriber
To assign a name to a DSL port, use the dsl subscriber command in interface configuration mode. To remove a name from a port (that is, to leave the field blank), use the no form of the command.
dsl subscriber name
no dsl subscriber
Syntax Description
Defaults
There is no default value for this command.
Command Modes
Interface configuration
Command History
Usage Guidelines
You can use the port name to identify the subscriber the port serves. You can modify the port name by assigning a different name to the same port; the latest assigned name takes precedence.
Examples
In this example, the name paul is assigned to slot 7, port 3.
DSLAM# configure terminalDSLAM(config)# interface atm 7/3DSLAM(config-if)# dsl subscriber paulRelated Commands
dsl test atm self
To run the line card port self-test, use the command
dsl test atm slot#/port# self
Syntax Description
Defaults
There is no default value for this command.
Command Modes
EXEC
Command History
Usage Guidelines
This command runs a digital bit error-rate loopback test on the specified port. The run time for the self-test ranges from 3 seconds for the ATUC-1-4DMT card to 1 minute for the 4xflexi card.
To view the result of the self-test, use the command show dsl interface atm slot#/port#.
The output display for this command includes the result of the last self-test, such as
Last Self-Test Result: NONEThe possible self-test results are PASSED, FAILED, RUNNING, and NONE.
The NONE result means that a chipset self-test has not run since the port became operational.
RUNNING means the test is in progress.
Caution
Examples
In this example, the command runs the self-test for port 1 in slot 20:
DSLAM# dsl test atm 20/1 selfRelated Commands
Posted: Thu May 27 13:37:13 PDT 2004
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