From: Rob Hopkins (rshopkins@xxxxxxxxxxxxx)
Date: Wed May 09 2001 - 12:54:07 GMT-3
with bgp max paths, both paths must be from the same AS
Thanks,
Rob Hopkins
1.6180339887499
----- Original Message -----
From: "Mohamed Heeba" <MAHeeba@itqan.co.ae>
To: <ccielab@groupstudy.com>
Sent: Wednesday, May 09, 2001 10:04 AM
Subject: BGP maximum paths
> guys ,
> i have a router R1 in AS 300 ,connecting to another AS 200 thourgh two
> serial connection ,each one going to different routers R2 and R5 (they are
> in confederation in As 200)
> the requirement is to load balance the traffic across both of the links.
> i have enabled the maximum paths 2 command on the BGP .
> but still the routes didnt appear in the routing table .
> they are on the bgp table ,showing two paths ,the prefered one is even the
> one with the lowest ip address .
>
> R1 is running 11.1 , do i need to enable anything else to get the routes
in
> the ip route table ???
> here is R1 configs
>
>
> ------------------------------
> interface Loopback0
> ip address 206.11.5.1 255.255.255.0 secondary
> ip address 206.11.6.1 255.255.255.0 secondary
> ip address 206.11.7.1 255.255.255.0 secondary
> ip address 206.11.4.1 255.255.255.0
> no ip mroute-cache
> no ip route-cache
> !
> interface Serial0
> ip address 206.11.20.18 255.255.255.248
> no ip mroute-cache
> no ip route-cache
> bandwidth 64
> !
> interface Serial1
> ip address 206.11.20.66 255.255.255.248
> no ip mroute-cache
> no ip route-cache
> bandwidth 64
> !
> router bgp 300
> network 206.11.4.0
> network 206.11.5.0
> network 206.11.6.0
> network 206.11.7.0
> neighbor 206.11.20.17 remote-as 200
> neighbor 206.11.20.65 remote-as 200
> maximum-paths 2
> no auto-summary
> !
>
>
> r2501#sh ip bgp
> BGP table version is 19, local router ID is 206.11.4.1
> 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
> * 10.0.0.2/32 206.11.20.65 0 200 i
> *> 206.11.20.17 0 0 200 i
> * 10.0.0.4/32 206.11.20.65 0 200 i
> *> 206.11.20.17 0 200 i
> * 10.0.0.5/32 206.11.20.65 0 0 200 i
> *> 206.11.20.17 0 200 i
> * 10.1.1.0/24 206.11.20.65 0 200 100 i
> *> 206.11.20.17 0 200 100 i
> * 20.1.1.0/24 206.11.20.65 0 200 100 i
> *> 206.11.20.17 0 200 100 i
> * 22.1.1.0/24 206.11.20.65 0 200 100 i
> *> 206.11.20.17 0 200 100 i
> * 24.1.1.0/24 206.11.20.65 0 200 100 i
> *> 206.11.20.17 0 200 100 i
> *> 206.11.4.0 0.0.0.0 0 32768 i
> *> 206.11.5.0 0.0.0.0 0 32768 i
> *> 206.11.6.0 0.0.0.0 0 32768 i
> *> 206.11.7.0 0.0.0.0 0 32768 i
> r2501#
>
>
> r2501#sh ip route
> Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate
> default
> U - per-user static route
>
> Gateway of last resort is not set
>
> 10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
> B 10.0.0.2/32 [20/0] via 206.11.20.17, 00:14:16
> B 10.1.1.0/24 [20/0] via 206.11.20.17, 00:14:16
> B 10.0.0.4/32 [20/0] via 206.11.20.17, 00:14:17
> B 10.0.0.5/32 [20/0] via 206.11.20.17, 00:14:17
> 20.0.0.0/24 is subnetted, 1 subnets
> B 20.1.1.0 [20/0] via 206.11.20.17, 00:14:17
> 22.0.0.0/24 is subnetted, 1 subnets
> B 22.1.1.0 [20/0] via 206.11.20.17, 00:14:17
> 24.0.0.0/24 is subnetted, 1 subnets
> B 24.1.1.0 [20/0] via 206.11.20.17, 00:14:17
> C 206.11.5.0/24 is directly connected, Loopback0
> C 206.11.4.0/24 is directly connected, Loopback0
> C 206.11.7.0/24 is directly connected, Loopback0
> C 206.11.6.0/24 is directly connected, Loopback0
> 206.11.20.0/29 is subnetted, 2 subnets
> C 206.11.20.64 is directly connected, Serial1
> C 206.11.20.16 is directly connected, Serial0
> r2501#
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