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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter39 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
interface
type number
Example:
Router(config)# interface
gigabitethernet 0/1
Specifies an interface type and number and enters interface
configuration mode.
Step 4
no ip address
Example:
Router(config-if)# no ip address
Removes an IP address or disables IP processing.
Step 5
negotiation auto
Example:
Router(config-if)# negotiation auto
Enables automatic negotiation.
Step 6
service instance
id
ethernet
Example:
Router(config-if)# service instance
100 ethernet
Configures an Ethernet service instance on an interface.
• id—Integer that uniquely identifies a service instance on an
interface. The value varies by the platform. Range: 1 to
4294967295. The identifier need not map to a VLAN and is
local in scope to the interface.
Step 7
encapsulation dot1q
vlan-id
Example:
Router(config-if-srv)# encapsulation
dot1q 101
Enables IEEE 802.1Q encapsulation of traffic on a specified
subinterface in a VLAN.
• vlan-id—Virtual LAN identifier. The allowed range is from 1 to
4094. For the IEEE 802.1Q-in-Q VLAN Tag Termination
feature, the first instance of this argument defines the outer
VLAN ID, and the second and subsequent instances define the
inner VLAN ID.
Step 8
rewrite ingress tag pop 1 symmetric
Example:
Router(config-if-srv)# rewrite ingress
tag pop 1 symmetric
Specifies the encapsulation adjustment to be performed on a frame
ingressing a service instance.