July 2002
Intermediate to advanced
608 pages
14h 52m
English
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Summary
Both IP and MPLS TE reroute if there's a failure somewhere in the network. However, IGP reroute is often not quick enough for real-time applications, and the MPLS TE headend reroute is, if anything, slower than IGP reroute because there's more work to be done.
Real-time applications might require subsecond convergence. FRR is the way to acheive this. Loss is minimized because of the ability to use local failure detection and repair. In the absence of local failure detection and repair, signalling propagation delay might result in packet loss that is unsuitable for real-time applications.
There are two types of local protection: link protection and node protection. Link protection can help only when the link that is downstream of the PLR ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.