September 2016
Intermediate to advanced
1152 pages
47h 48m
English
Content preview from Routing TCP/IP, Volume II: CCIE Professional Development, Second Edition
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Tuning BGP CPU
Understanding the effects of BGP on CPU utilization is important because router or switch CPU is a shared resource. When this resource is fully utilized by one process, or a group of processes for one protocol, other processes are adversely affected. The CPU is used for both, running system and protocol processes, as well as for forwarding some classes of traffic that cannot be forwarded in hardware (traffic “punted” to the CPU). Therefore, the unavailability of CPU due to one process can adversely affect other processes, as well as traffic forwarding. In some cases, high CPU utilization causes the router to crash altogether. For BGP to be truly scalable, its processes and control traffic (that is handled by the CPU) should not ...
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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.