LinkMeUp. Release 11. Cisco TAC, CEF, FIB
Everything that you would like to know about the work of the technical support center, how cases are handled in cisco, and what kind of analysis tools engineers have in the first part of the podcast.
Further there will be a qualitative story about mechanisms of Proccess Switching, Fast Switching and Cisco Express Forwarding. We will plunge into RIB, FIB, the implementation of all this in hardware, see how the package is processed on linear, processing boards and switching factories.
It turned out pretty hardcore both in duration and in depth.
Release News
- The most real Dual Stack IPv4 / IPv6 from VimpelCom: test in Voronezh ( link )
- ASRK-RF Automated Radio Monitoring System will check who illegally clogs the air ( link )
- For the first time, servers for time synchronization were used for a DDOS attack ( link )
- German publication Spiegel has published a 50-page catalog of bugs that NSA employees can order and implement ( link )
Download the podcast file .
If you have any questions, something is not clear from the podcast, you are welcome to comment.
Under the cut you will find a list of abbreviations and illustrations for the podcast.
Acronym TAC - Technical Assistance Center
ASIC - Application Specific Integrated Circuit
NPI - Network Processor Interface
IPC - InterProcess Channel
TCAM - Ternary Content-Addressable Memory
CEF - Cisco Express Forwarding
RIB - Routing Information Base
FIB - Forwarding Information Base
Technology Overview

The principle of processing the received packet using Proccess Switching


Disadvantages of Proccess Switching

FIB mechanism

How packet is processed using CEF

Functionality supporting and non-supporting CEF

Release Links
- The same presentation about Cisco hardware
- Comparison of performance of different platforms with Proccess Switching, Fast Switching and CEF
- Architecture 6500
- ASR 9000 architecture (in Russian)
- Russian Cisco Support Community
The background composition is taken from here .