BGP LOCAL PREF: Explain me this.

From: Devender Singh (devender.singh@xxxxxxxxxxxxxx)
Date: Sat Feb 10 2001 - 09:48:16 GMT-3

   
I always thought local pref is number two high in bgp decision process after
weight.
I am getting best path with local-pref of 50 instead of 200. It does not
make much sense to me. Do you guys agree with me.

r3#sh ip bgp
BGP table version is 33, local router ID is 172.17.33.3
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network Next Hop Metric LocPrf Weight Path
*> 0.0.0.0 172.17.34.4 50 0 200 i
* i1.1.1.0/24 172.16.11.1 200 0 300 400 i
*> 172.17.34.4 50 0 200 400 i
* i2.1.1.0/24 172.16.11.1 200 0 300 400 i
*> 172.17.34.4 50 0 200 400 i
* i3.0.0.0 172.16.11.1 200 0 300 400 i
*> 172.17.34.4 50 0 200 400 i
* i192.168.16.0 172.16.11.1 0 200 0 300 ?
*> 172.17.34.4 50 0 200 400 300
?
* i192.168.17.0 172.16.11.1 0 200 0 300 ?
*> 172.17.34.4 50 0 200 400 300
?
* i192.168.18.0 172.16.11.1 0 200 0 300 ?
*> 172.17.34.4 50 0 200 400 300
?
* i192.168.19.0/28 172.16.11.1 0 200 0 300 ?
*> 172.17.34.4 50 0 200 400
300 ?
* i192.168.19.16/28 172.16.11.1 0 200 0 300 ?
*> 172.17.34.4 50 0 200 400
300 ?
* i192.168.19.32/28 172.16.11.1 0 200 0 300 ?
*> 172.17.34.4 50 0 200 400
300 ?
* i192.168.19.48/28 172.16.11.1 0 200 0 300 ?
*> 172.17.34.4 50 0 200 400
300 ?
* i200.1.3.0 172.16.11.1 200 0 300 400 200 ?
*> 172.17.34.4 0 50 0 200 ?
* i201.0.1.0 172.16.11.1 200 0 300 400 200 ?
*> 172.17.34.4 0 50 0 200 ?
* i201.1.1.0 172.16.11.1 200 0 300 400 200
?
*> 172.17.34.4 0 50 0 200 ?
* i201.1.2.0 172.16.11.1 200 0 300 400 200
?
*> 172.17.34.4 0 50 0 200 ?
* i201.2.1.0 172.16.11.1 200 0 300 400 200
?
*> 172.17.34.4 0 50 0 200 ?
r3#

Devender Singh
BE(Hons), CCNP
IP Solution Specialist

This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:28:44 GMT-3