BGP Next Hop display

From: Shine Joseph (shinepjoseph@iprimus.com.au)
Date: Thu Oct 11 2007 - 07:33:42 ART


Hi Folks,

Can someone shed some lights why would you see the following behaviour?

   Network Next Hop Metric LocPrf Weight Path
* 28.119.16.0/24 176.1.127.7 200 0 100 54 i
*> 176.1.127.1 100 0 300 200 100 54
i
* 28.119.17.0/24 176.1.127.7 200 0 100 54 i
*> 176.1.127.1 100 0 300 200 100 54
i
* 112.0.0.0 176.1.127.1 200 0 100 54 50 60 i
*> 176.1.127.1 100 0 300 200 100 54
50 60 i
* 113.0.0.0 176.1.127.1 200 0 100 54 60 i
*> 176.1.127.1 100 0 300 200 100 54
60 i
* 114.0.0.0 176.1.127.1 200 0 100 54 i
*> 176.1.127.1 100 0 300 200 100 54
i
* 115.0.0.0 176.1.127.1 200 0 100 54 i
*> 176.1.127.1 100 0 300 200 100 54
i
* 116.0.0.0 176.1.127.1 200 0 100 54 i
*> 176.1.127.1 100 0 300 200 100 54
i
* 117.0.0.0 176.1.127.1 200 0 100 54 i
*> 176.1.127.1 100 0 300 200 100 54
i

The BGP prefixes learned from two routers show the same next hop. And when
you look at the path, they are different.

TIA
Shine



This archive was generated by hypermail 2.1.4 : Fri Nov 16 2007 - 13:11:13 ART