January 2001
Intermediate to advanced
368 pages
11h 35m
English
Content preview from IP Quality of Service
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A P P E N D I X
B
Packet Switching Mechanisms
A router’s primary function is to switch packets efficiently and accurately. Cisco IOS
supports several switching methods. Three of them—process switching, route-cache
forwarding, and Cisco Express Forwarding (CEF)—are discussed in this appendix.
CEF is the recommended switching mechanism in routers of today’s networks that carry
thousands of short-duration flows. CEF plays a vital role in policy-routing functions
requiring a route table lookup. CEF is also a prerequisite switching mechanism for certain
QoS functions, such as QoS Policy Propagation using BGP (QPPB). Policy-based routing
and QPPB are discussed ...
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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.