- Cisco ASR 901 Series Manual
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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
Configuring Remote LFA-FRR on a Global Interface
To configure Remote LFA-FRR on a global interface, complete the following steps:
SUMMARY STEPS
1. enable
2. configure terminal
3. mpls label protocol ldp
4. no l3-over-l2 flush buffers
5. asr901-platf-frr enable
6. mpls ldp discovery targeted-hello accept
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
mpls label protocol ldp
Example:
Router(config)# mpls label protocol
ldp
Specifies that this LDP is the default distribution protocol.
Step 4
no l3-over-l2 flush buffers
Example:
Router(config)# no l3-over-l2 flush
buffers
Disables Layer 3 over Layer 2 deployments.
Step 5
asr901-platf-frr enable
Example:
Router(config)# asr901-platf-frr
enable
Enables TE-FRR link protection.
Step 6
mpls ldp discovery targeted-hello
accept
Example:
Router(config)# mpls ldp discovery
targeted-hello accept
Configures the neighbors from which requests for targeted hello
messages may be honored.
• targeted-hello—Configures the intervals and hold times for
neighbors that are not directly connected.
• accept—Configures the router to respond to requests for
targeted hello messages from all neighbors.