Step 3
Enter global configuration mode and specify that the console terminal will be the source of the configuration
commands:
RP/0/RSP0/CPU0:router# configure terminal
Step 4
At the prompt, specify the new interface to configure by entering the interface command, followed by the
type (for example, gigabitethernet or tengige) and rack/slot /instance/port (line card rack, slot number, subslot
number, port number). Remember that Cisco ASR 9001 Router rack and subslot values are always 0 (zero).
For example, to configure port 4 on bay 0 of the line card:
RP/0/RSP0/CPU0:router# interface tengige 0/0/0/3
Step 5
Assign an IP address and subnet mask to the interface with the ipv4 address configuration subcommand, as
in the following example:
RP/0/RSP0/CPU0:router(config-if)# ipv4 address 10.1.2.3 255.255.255.0
Step 6
Use the no shutdown command to enable the interface:
RP/0/RSP0/CPU0:router(config-if)# no shutdown
The no shutdown command passes an enable command to the line card. It also causes the line card to configure
itself based on the most recent configuration commands received by the line card.
Step 7
If you want to disable the Cisco Discovery Protocol (CDP), which is not required, use this command:
RP/0/RSP0/CPU0:router(config-if)# no cdp
Step 8
Add any other configuration subcommands required to enable routing protocols and adjust the interface
characteristics. Examples of such subcommands are:
RP/0/RSP0/CPU0:router(config-if)# flow-control ingress
RP/0/RSP0/CPU0:router(config-if)# mtu 1448
RP/0/RSP0/CPU0:router(config-if)# mac-address 0001.2468.ABCD
Step 9
When you have included all the configuration subcommands to complete the configuration, enter the commit
command to commit all changes you made to the running configuration.
RP/0/RSP0/CPU0:router(config-if)# commit
Step 10
Enter Ctrl-Z to exit configuration mode. If you did not enter the commit command, you will be prompted
to do so:
RP/0/RSP0/CPU0:router(config-if)#
Uncommitted changes found, commit them before exiting(yes/no/cancel)? [cancel]:
Answer yes to commit, no to exit without a commit, or cancel to cancel the exit (default).
Step 11
Write the new configuration to memory:
RP/0/RSP0/CPU0:router# copy run disk0:/config/running/alternate_cfg:/router.cfg
Destination file name (control-c to abort): [/router.cfg]?
The destination file already exists. Do you want to overwrite? [no]: yes
Building configuration.
223 lines built in 1 second
[OK]
The system displays an OK message when the configuration has been stored.
Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
102
Troubleshooting the Installation
Configuring and Troubleshooting Line Card Interfaces
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