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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
Enabling MPLS TE-FRR for EoMPLS on an Interface
To enable MPLS TE-FRR for EoMPLS on an interface, perform the steps given below:
SUMMARY STEPS
1. enable
2. configure terminal
3. pseudowire-class pw-class-name
4. no negotiation auto
5. service instance id ethernet
6. encapsulation dot1q vlan-id
7. rewrite ingress tag pop 1 symmetric
8. xconnect peer-ip-address vc-id pw-class pw-class-name
Step 8
preferred-path {[interface]
tunnel
tunnel-number
| peer
host-ip-address
}
[disable-fallback]
Example:
Router(config-pw-class)#
preferred-path interface Tunnel41
disable-fallback
Specifies the MPLS TE tunnel that traffic uses.
• interface—Specifies the preferred path using an output
interface.
• tunnel—Specifies an MPLS TE tunnel interface that is the
core-facing output interface.
• tunnel-number—Tunnel interface number.
• peer—Specifies a destination IP address or DNS name
configured on the peer provider edge (PE) router, which is
reachable through a label switched path (LSP).
• host-ip-address—Peer host name or IP address.
• peer—(Optional) Disables the router from using the default
path when the preferred path is unreachable.
Step 9
exit
Example:
Router(config-pw-class)# exit
Exits pseudowire class configuration mode and enters the global
configuration mode.
Step 10
mpls label protocol ldp
Example:
Router(config)# mpls label protocol
ldp
Specifies the label distribution protocol for an interface. Here LDP
protocol is used.
Step 11
mpls ldp igp sync holddown
milliseconds
Example:
Router(config)# mpls ldp igp sync
holddown 1000
Specifies how long an Interior Gateway Protocol (IGP) should wait
for Label Distribution Protocol (LDP) synchronization to be
achieved.
• milliseconds—Peer host name or IP address.
Command Purpose
