Configuring Serial Interfaces on the Cisco ASR 9000 Series Router
How to Configure Serial Interfaces
530
Cisco ASR 9000 Aggregation Services Router Interfaces and Hardware Component Configuration Guide
OL-26061-03
What to Do Next
• To configure optional PVC parameters, see the “Configuring Optional Serial Layer 2 PVC
Parameters” section on page 531.
• For detailed information about configuring L2TPv3 in your network, see the “Implementing Layer
2 Tunnel Protocol Version 3” module of the Cisco IOS XR Virtual Private Network Configuration
Guide for the Cisco CRS Router. For detailed information about configuring L2VPNs, see the
“Implementing MPLS Layer 2 VPNs” module of the Cisco IOS XR Virtual Private Network
Configuration Guide for the Cisco CRS Router.
• For detailed information about configuring L2TPv3 in your network, see the “Implementing Layer
2 Tunnel Protocol Version 3 on Cisco IOS XR Software” module of the Cisco IOS XR Virtual Private
Network Configuration Guide for the Cisco XR 12000 Series Router. For detailed information about
configuring L2VPNs, see the “Implementing MPLS Layer 2 VPNs on Cisco IOS XR Software”
module of the Cisco IOS XR Virtual Private Network Configuration Guide for the Cisco XR 12000
Series Router.
Step 3
pvc vpi/vci
Example:
RP/0/0RP0/CPU0:router(config-if)# pvc 5/20
Creates a serial permanent virtual circuit (PVC) and enters
serial Layer 2 transport PVC configuration mode.
Note Only one PVC is allowed per subinterface.
Step 4
end
or
commit
Example:
RP/0/0RP0/CPU0:router(config-fr-vc)# end
or
RP/0/0RP0/CPU0:router(config-fr-vc)# 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
Repeat Step 1 through Step 4 to bring up the serial
subinterface and any associated PVC at the other end
of the AC.
Brings up the AC.
Note The configuration on both ends of the AC must
match.
Command or Action Purpose
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