July 2002
Intermediate to advanced
608 pages
14h 52m
English
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Tunnel Modes
So far, you've seen two independent questions:
How is the queuing indicator (IP Precedence or MPLS EXP) propagated up and down the label stack and upon exit from the MPLS network?
In the mpls2mpls and mpls2ip pop cases, which PHB does the resulting packet get?
This section covers reasons why you might want to enforce different behaviors, as well as the mechanisms being defined to standardize those behaviors.
Currently, a set of behaviors are being defined that give you a set of mechanisms to control EXP values in various scenarios. These mechanisms are called tunnel modes. Three tunnel modes are defined in RFC 3270:
Uniform
Short-Pipe
Pipe
These modes are defined in the same IETF draft that defines L-LSP—“MPLS Support of Differentiated ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.