June 2003
Intermediate to advanced
504 pages
12h 29m
English
Content preview from MPLS and VPN Architectures, Volume IIBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Summary
With the introduction of EIGRP and IS-IS protocols on the PE-CE links, Cisco Systems Inc. is now able to support all modern IP routing protocols within an MPLS VPN environment.
In addition to this, support for the OSPF protocol has been further enhanced so that the presence of backdoor backup links between customer sites no longer causes undesired effects. This is achieved through the use of sham-links that are configured between PE routers to which the customer sites that have backdoor links are connected, and the creation of routing adjacencies across these links.
The introduction of these new routing protocols is essential for the continued adoption of the MPLS VPN architecture and so that more complex customer routing topologies can ...
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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.