RE: BGP prefers route with less local preference??

From: Michael Zuo (mzuo@ixiacom.com)
Date: Mon Feb 19 2007 - 18:28:54 ART


Oops, forgot the output:

R3(config-router)#do sh run | be router bg

router bgp 300

 synchronization

 bgp log-neighbor-changes

 neighbor 172.16.34.4 remote-as 300

 neighbor 172.16.34.4 next-hop-self

 neighbor 172.16.34.4 route-map PREFER in

 neighbor 172.16.34.10 remote-as 1000

 neighbor 172.16.36.6 remote-as 100

 distance bgp 20 20 20

 no auto-summary

!

no ip http server

no ip http secure-server

!

!

!

!

ip prefix-list FROMR4 seq 5 permit 10.0.0.0/8 le 32

!

ip access-list standard FROMCAT2

 permit 10.0.0.0 0.255.255.255

ip access-list standard LOOP

 permit 172.16.104.0 0.0.0.255

R3(config-router)#do sh ip b

BGP table version is 13, local router ID is 172.16.103.1

Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal,

              r RIB-failure, S Stale

Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path

* i10.10.10.0/24 172.16.34.4 0 200 0 1000 i

*> 172.16.34.10 0 0 1000 i

*> 70.0.0.0 172.16.36.6 0 100 700 ?

R3(config-router)#

________________________________

From: Michael Zuo
Sent: Monday, February 19, 2007 1:28 PM
To: ccielab@groupstudy.com
Subject: BGP prefers route with less local preference??

Hi Group,

I ran into a strange problem, below output shows that BGP is picking a
route with less local preference as "Best"?? this starts happening when
I put in "distance bgp 20 20 20". Does anyone know why this is
happening?

thanks



This archive was generated by hypermail 2.1.4 : Thu Mar 01 2007 - 07:38:47 ART