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Configuring Serial Interfaces on Cisco IOS XR Software
How to Configure Serial Interfaces
HC-123
Cisco IOS XR Interface and Hardware Component Configuration Guide
Step 9
scramble
Example:
RP/0/0/CPU0:ios(config-if-serial)# scramble
(Optional) Enables payload scrambling on the interface.
Note Payload scrambling is disabled on the interface.
Step 10
transmit-delay hdlc-flags
Example:
RP/0/0/CPU0:ios(config-if-serial)#
transmit-delay 10
(Optional) Specifies a transmit delay on the interface.
Values can be from 0 to 128.
Note Transmit delay is disabled by default (the transmit
delay is set to 0).
Step 11
exit
Example:
RP/0/0/CPU0:router(config-if-serial)# exit
RP/0/0/CPU0:router(config-if)#
Exits serial configuration mode.
Step 12
no shutdown
Example:
RP/0/0/CPU0:router(config-if)# no shutdown
(Optional) Enables the serial interface. Use this command if
the interface was shut down.
Note Serial interfaces are enabled by default. However, if
the card or router is reset and the serial interface is
not configured, then it comes up in the shutdown
state.
Step 13
end
or
commit
Example:
RP/0/0/CPU0:router(config)# end
or
RP/0/0/CPU0:router(config)# 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 14
show interfaces serial instance
Example:
RP/0/0/CPU0:router# show interfaces serial
0/0/3/0/5:20
Displays information about the interface.
Command or Action Purpose