50MS Protection for IP/LDP Networks
Aired: November 3, 2009
Presented by: Hannes Gredler
Junos has supported Fast Reroute for MPLS for more than eight years, giving 50ms protection to many customer networks. For a long time, RSVP has been the only protocol programming with fast reroute capabilities for its labeled routes. In many cases, RSVP cannot scale to support MPLS transport "full" meshes in excess of 100 routers, which requires additional fast-reroute capabilities to other routing protocols using a technology called "Loop free alternates" (LFA).
In this seminar, we’ll examine the Junos LFA implementation for OSPF and IS-IS and how it ties to other protocols (LDP, RSVP, PIM). We’ll discuss issues like CPU computation scalability for complex (node) protection scenarios, as well as how to achieve 100% backup coverage.
It will be complemented by an assessment of how to deploy IP/LDP FRR to make it scale into the largest networks in the world, including some customer testing results demonstrating that 50ms service restoration is feasible today.
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Hannes Gredler
Software Development Engineer
Hannes Gredler is a Software Development Engineer at Juniper Networks, working in the Routing Protocols group. He has been working on Link-state and MPLS-related protocols of the JUNOS network operating system, with an emphasis on resilient network architectures as well as non-stop routing (NSR).
