November 2006
Beginner
672 pages
15h 30m
English
Content preview from MPLS Fundamentals
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Link Manager
The link manager is a piece of the Cisco IOS TE code that does some necessary housekeeping on every TE-enabled router. It mainly does link admission control, which involves keeping track of the bandwidth reserved by RSVP on the links and allowing RSVP to reserve more bandwidth on the link for new tunnel setup requests. It is also the piece of software that determines which TE tunnel LSP can preempt another (by looking at the tunnel priorities) on the links. Finally, it is what triggers the IGP to flood the link state information if the thresholds of the links are crossed. Refer to the earlier section “Flooding by the IGP” for more on this. Example 8-17 shows the show and debug commands to figure out what the link manager is up to. ...
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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.