North American Network Operators Group

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Re: The Size of OSPF Network

  • From: Daniel L. Golding
  • Date: Fri Mar 31 16:16:06 2000

Disclaimer: This is a religious issue. This is also an issue that is
non-operational and should be on PUCK...

200 routers seems excessive. 50 routers is much more reasonable. The
important part is to limit external routes being redistributed into OSPF.
External routes are bad mojo. 


Daniel Golding
Senior Network Engineer
NetRail, Inc.
-----------------------
dan@netrail.net
(404) 739-4346

On Fri, 31 Mar 2000, HANSEN CHAN wrote:

> 
> Dear all,
> 
> For the big ISP networks (tier 1 or 2) that happens to use OSPF, what is the typical
> number of OSPF areas in the network? According to OSPF books, a typical area is
> consisted of 200 routers. Are those guidelines ever followed in real ISP network
> deployment?
> 
> Any input is highly appreciated.
> 
> Cheers,
> Hansen
> 
> 
> 
>