From: zhutong (zhutong@xxxxxxxxxxxxxx)
Date: Tue May 22 2001 - 01:04:18 GMT-3
I have three routers, R1 is in AS 1, R2 & R3 in AS100, following are there conf
iguratons,
and "show ip bgp" for R2 and R3, it seems not using the best path, why?
R1
========================================
interface Loopback0
ip address 1.1.1.1 255.255.255.0
interface Serial1/0
ip address 192.168.20.17 255.255.255.240
interface Serial1/1
ip address 192.168.20.49 255.255.255.240
router bgp 1
network 1.0.0.0
neighbor 192.168.20.18 remote-as 100
neighbor 192.168.20.50 remote-as 100
R2
========================================
interface FastEthernet0/0
ip address 192.168.20.65 255.255.255.240
interface Serial1/0
ip address 192.168.20.18 255.255.255.240
router bgp 100
bgp default local-preference 200
neighbor 192.168.20.17 remote-as 1
neighbor 192.168.20.17 weight 1000
neighbor 192.168.20.66 remote-as 100
neighbor 192.168.20.66 weight 3000
R3
========================================
interface FastEthernet0/0
ip address 192.168.20.66 255.255.255.240
interface Serial1/0
ip address 192.168.20.50 255.255.255.240
router bgp 100
bgp default local-preference 300
neighbor 192.168.20.49 remote-as 1
neighbor 192.168.20.65 remote-as 100
here are "show ip bgp" output
R1
-----------------------------------------------------------------
Network Next Hop Metric LocPrf Weight Path
*> 1.0.0.0 0.0.0.0 0 32768 i
R2
-----------------------------------------------------------------
Network Next Hop Metric LocPrf Weight Path
*> 1.0.0.0 192.168.20.17 0 1000 1 i
* i 192.168.20.49 0 300 3000 1 i
R3
-----------------------------------------------------------------
Network Next Hop Metric LocPrf Weight Path
* i1.0.0.0 192.168.20.17 0 200 0 1 i
*> 192.168.20.49 0 0 1 i
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