Configuring Serial Interfaces on the Cisco ASR 9000 Series Router
How to Configure Serial Interfaces
523
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 Interface Parameters”
section on page 518.
• To modify the default Frame Relay configuration on serial interfaces that have Frame Relay
encapsulation enabled, see the“Modifying the Default Frame Relay Configuration on an Interface”
section of the “Configuring Frame Relay on the Cisco ASR 9000 Series Router” module.
• To attach a Layer 3 QOS service policy to the PVC under the PVC submode, refer to the appropriate
Cisco IOS XR software configuration guide.
Step 5
end
or
commit
Example:
RP/0/0RP0RSP0/CPU0:router (config-subif)# end
or
RP/0/0RP0RSP0/CPU0:router(config-subif)# 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 6
configure
interface serial interface-path-id
pvc dlci
commit
Example:
RP/0/0RP0RSP0/CPU0:router# configure
RP/0/0RP0RSP0/CPU0:router (config)# interface
serial 0/1/0/1.1
RP/0/0RP0RSP0/CPU0:router (config-subif)#ipv4
address 10.46.8.5/24
RP/0/0RP0RSP0/CPU0:router (config-subif)# pvc
20
RP/0/0RP0RSP0/CPU0:router (config-fr-vc)#
commit
Repeat Step 1 through Step 5 to bring up the serial
subinterface and any associated PVC at the other end of the
connection.
Note The DLCI (or PVC identifier) must match on both
ends of the subinterface connection.
Note When assigning an IP address and subnet mask to
the subinterface at the other end of the connection,
keep in mind that the addresses at both ends of the
connection must be in the same subnet.
Command or Action Purpose