MPLS restoration

[bmbreer1000]

Improved uptime and faster recovery from outages is often touted as a benefit of MPLS but how is that possible when it depends on the underlying IGP to know what the best route is?

[Vinit Jain · Accepted solution]

To answer your question in short, Faster recovery or failover in MPLS is achieved using MPLS Traffic Engineering using which there is already a backup path signalled so that if the primary link / node fails, the devices know where to route the traffic using that backup signalled path.

http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/TE_1208S.html

using MPLS TE Fast Reroute feature, failover in about 50ms can be achieved.

Hope this helps

Regards

Vinit

[bmbreer1000]

It does, thanks.