I’ve been revising some EIGRP and it seems that a lot of what I used to know, I don’t know. Or maybe I didn’t know it the first time. Here, I’m just fiddling with EIGRP and the auto-summary command.
Defining Flow Forwarding Instead of Switch or Routing
8th February 2012 by 6 Comments
Wherein I make the case OpenFlow like technologies are neither switching or routing. It’s Flow Forwarding, or just Forwarding.
OpenFlow and Software Defined Networking: Is It Routing or Switching ?
21st December 2011 by 7 Comments
I got asked a question by a reader “is OpenFlow used for Routing or Switching ?”
Routing Protocols and Computation in Silicon
27th November 2011 by 2 Comments
I got this question and I guess it may not be obvious to everyone so I’ll have a shot at answering it.
Technology advances in ASIC hardware have resulted in substantial improvements in switching performances of routers and switches. However, the routing processes are still dependent on CPU speeds. What are the existing limitations in router/switch models which prevent route computations from being performed in hardware?
Should I Use BFD in My Network ?
19th October 2011 by 6 Comments
Wherein I consider using BFD in Network Designs.
Loop-Free Alternate Routes
12th February 2011 by 9 Comments
Whilst at Cisco Live recently I was intrigued to learn about an apparently simple yet effective fast routing convergence technique called Loop-Free Alternate Fast ReRoute (LFA-FRR), a.k.a. IP Fast ReRoute (IP-FRR).
Many service providers and enterprises these days tune their interior gateway protocol (IGP) timers, aiming to achieve sub-200ms convergence. This can be quite an intensive and design impacting challenge.
