Tunnel Identification Schemes
Chapter 9 discussed tunnel scalability and showed that you can build rather large networks with MPLS TE. Showing that the network can handle as many tunnels as you need it to is one thing. Showing how you actually support this setup is quite another.
One question that gets asked a lot is “How do I number my TE tunnels?” All TE tunnels on a router have a number—Tunnel0, Tunnel1, and so on.
The easiest method to assign a number to your tunnel is to assign each tunnel tailend a unique number. This number needs to be tracked in any provisioning systems you have, just like you track IP addresses or anything else. Then each router that terminates a tunnel on that particular tailend uses the assigned tunnel number to do ...
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