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34-11
Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 34 MPLS Traffic Engineering - Fast Reroute Link Protection
How to Configure Traffic Engineering - Fast Reroute Link Protection
Configuring Primary One-hop Auto-Tunnels
To configure primary one-hop auto-tunnels for MPLS TE-FRR, perform the following steps.
SUMMARY STEPS
1. enable
2. configure terminal
3. mpls traffic-eng auto-tunnel primary onehop
4. mpls traffic-eng auto-tunnel primary tunnel-num [min num] [max num]
5. mpls traffic-eng auto-tunnel primary config unnumbered interface
6. mpls traffic-eng auto-tunnel primary timers removal rerouted sec
7. mpls traffic-eng auto-tunnel primary config mpls ip
Step 10
fast-reroute per-prefix level-2 all
Example:
Router(config-router)# fast-reroute
per-prefix level-2 all
Configures an FRR path that redirects traffic to a remote LFA tunnel
for level-2 packets.
• level-2—Enables per-prefix FRR of level 2 packets.
• all—Enables FRR of all primary paths.
Step 11
fast-reroute remote-lfa level-1
mpls-ldp
Example:
Router(config-router)# fast-reroute
remote-lfa level-1 mpls-ldp
Configures an FRR path that redirects traffic to a remote LFA
tunnel.
• level-1—Enables LFA-FRR of level-1 packets.
• mpls-ldp—Specifies that the tunnel type is MPLS or LDP.
Step 12
fast-reroute remote-lfa level-2
mpls-ldp
Example:
Router(config-router)# fast-reroute
remote-lfa level-2 mpls-ldp
Configures an FRR path that redirects traffic to a remote LFA
tunnel.
• level-2—Enables LFA-FRR of level-2 packets.
• mpls-ldp—Specifies that the tunnel type is MPLS or LDP.
Step 13
bfd all-interfaces
Example:
Router(config-router)# bfd
all-interfaces
Enables Bidirectional Forwarding Detection (BFD) for all
interfaces participating in the routing process.
Step 14
mpls ldp sync
Example:
Router(config-router)# mpls ldp sync
Enables MPLS LDP synchronization on interfaces for an IS-IS
process.
Command Purpose