Specifications

6-14
Cisco XR 12000 Series Router SIP and SPA Software Configuration Guide, Release 3.2
Release 3.2, OL-6396-01, Rev.A1 January 9, 2006
Chapter 6 Configuring POS SPAs on Cisco IOS XR Software
Configuration Tasks
Step 5
encapsulation [hdlc | ppp]
Example:
RP/0/0/CPU0:router(config-if)# encapsulation
hdlc
(Optional) Configures the interface encapsulation
parameters and details such as HDLC or PPP.
Step 6
pos crc {16 | 32}
Example:
RP/0/0/CPU0:router(config-if)# pos crc 32
(Optional) Configures the value of cyclic redundancy check
(crc). The default CRC value is 32.
Step 7
keepalive [seconds | disable]
Example:
RP/0/0/CPU0:router(config-if)# keepalive 10
(Optional) Configures the value of keepalive.
Step 8
mtu value
Example:
RP/0/0/CPU0:router(config-if)# mtu 4474
(Optional) Configures the value of MTU.
• Default is 4474; range is 64–65535 on the Cisco XR
12000 Series Router.
Step 9
no shutdown
Example:
RP/0/0/CPU0:router(config-if)# no shutdown
Removes the shutdown configuration.
• The removal of the shutdown configuration removes
the forced administrative down on the interface,
enabling it to move to an up or down state (assuming
the parent SONET layer is not configured
administratively down).
Step 10
end
or
commit
Example:
RP/0/0/CPU0:router(config-if)# end
or
RP/0/0/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.
Command or Action Purpose