- Cisco ASR 901 Series Manual
39-24
Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 39 Remote Loop-Free Alternate - Fast Reroute
How to Configure Remote Loop-Free Alternate - Fast Reroute
DETAILED STEPS
Command Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
controller {t1 | e1}
slot/port
Example:
Router(config)# controller e1 0/0
Selects a T1 or E1 controller and enters controller configuration
mode.
Step 4
clock source internal
Example:
Router(config-controller)# clock
source internal
Sets clocking for individual links.
Step 5
cem-group
group-number
timeslots
timeslot-range
Example:
Router(config-controller)# cem-group 0
timeslots 1-31
Assigns channels on the T1 or E1 circuit to the circuit emulation
(CEM) channel and specific timeslots to the CEM channel.
• group-number—Channel number to be used for this group of
time slots.
• timeslot—Specifies that a list of time slots is to be used as
specified by the timeslot-range argument.
• timeslot-range—List of the time slots to be included in the
CEM channel. The list may include commas and hyphens with
no spaces between the numbers.
Step 6
description
descriptive-name
Example:
Router(config-controller)# description
E1 CESoPSN example
Specifies a descriptive name for the controller.
Step 7
exit
Example:
Router(config)# exit
Exits global configuration mode.
Step 8
interface CEM
slot/port
Example:
Router(config)# interface CEM 0/0
Defines a CEM channel.