Configuring Serial Interfaces on the Cisco ASR 9000 Series Router
How to Configure Serial Interfaces
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Cisco ASR 9000 Aggregation Services Router Interfaces and Hardware Component Configuration Guide
OL-26061-03
How to Configure a Layer 2 Attachment Circuit
The Layer 2 AC configuration tasks are described in the following procedures:
• Creating a Serial Layer 2 Subinterface with a PVC
• Configuring Optional Serial Layer 2 PVC Parameters
Step 3
keepalive {seconds | disable}
or
no keepalive
Example:
RP/0/0RP0RSP0/CPU0:router(config-if)# keepalive
3
or
RP/0/0RP0RSP0/CPU0:router(config-if)# no
keepalive
Specifies the number of seconds between keepalive
messages.
• Use the keepalive disable command, the no keepalive,
or the keepalive command with an argument of 0 to
disable the keepalive feature.
• The range is from 1 to 30 seconds. The default is 10
seconds.
• If keepalives are configured on an interface, use the no
keepalive command to disable the keepalive feature
before configuring Frame Relay encapsulation on that
interface.
Step 4
end
or
commit
Example:
RP/0/0RP0RSP0/CPU0:router(config-if)# end
or
RP/0/0RP0RSP0/CPU0:router(config-if)# commit
Saves configuration changes.
• When you issue the end command, the system prompts
you to commit changes:
Uncommitted changes found, commit them before
exiting(yes/no/cancel)?
[cancel]:
–
Entering yes saves configuration changes to the
running configuration file, exits the configuration
session, and returns the router to EXEC mode.
–
Entering no exits the configuration session and
returns the router to EXEC mode without
committing the configuration changes.
–
Entering cancel leaves the router in the current
configuration session without exiting or
committing the configuration changes.
• Use the commit command to save the configuration
changes to the running configuration file and remain
within the configuration session.
Step 5
show interfaces serial interface-path-id
Example:
RP/0/0RP0RSP0/CPU0:router# show interfaces
serial 0/1/0/0
(Optional) Verifies the interface configuration.
Command or Action Purpose