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BGP with 2 ISP and load sharing

Sameer Vashisth
Level 1
Level 1

Hello All,

We are having 2 ISP, have configured BGP for both the links on the same router, created vlans. We want traffic from selected vlans to go through ISP 1 and the rest all vlans to ISP 2, vlan 703 and vlan 801 to go through ISP 1 and rest all vlans to go through ISP 2

Router Configuration:

interface GigabitEthernet0/1.700
encapsulation dot1Q 700
ip address x.x.x.1 255.255.255.252
!
interface GigabitEthernet0/1.701
encapsulation dot1Q 701
ip address x.x.x.25 255.255.255.252
rate-limit input 8192000 224200 224288 conform-action transmit exceed-action drop
rate-limit output 8192000 224200 224288 conform-action transmit exceed-action drop
!
interface GigabitEthernet0/1.702
encapsulation dot1Q 702
ip address y.y.y.5 255.255.255.252
rate-limit input 1192000 224200 224288 conform-action transmit exceed-action drop
rate-limit output 1192000 224200 224288 conform-action transmit exceed-action drop
!
interface GigabitEthernet0/1.703
description WSC
encapsulation dot1Q 703
ip address y.y.y.9 255.255.255.252
rate-limit input 8192000 224200 224288 conform-action transmit exceed-action drop
rate-limit output 8192000 224200 224288 conform-action transmit exceed-action drop
!
interface GigabitEthernet0/1.801
encapsulation dot1Q 801
ip address z.z.z.33 255.255.255.248
rate-limit input 3192000 224200 224288 conform-action transmit exceed-action drop
rate-limit output 3192000 224200 224288 conform-action transmit exceed-action drop
!
interface GigabitEthernet0/1.802
encapsulation dot1Q 802
ip address z.z.z.41 255.255.255.248
rate-limit input 4288000 444200 444288 conform-action transmit exceed-action drop
rate-limit output 4288000 444200 444288 conform-action transmit exceed-action drop
!
interface GigabitEthernet0/1.803
encapsulation dot1Q 803
ip address z.z.z.1 255.255.255.240
!

router bgp 33333
no synchronization
bgp log-neighbor-changes
bgp bestpath as-path multipath-relax
network x.x.x.0 mask 255.255.255.0
network y.y.y.0 mask 255.255.255.0
network z.z.z.0 mask 255.255.255.0
redistribute static
neighbor a.a.a.a remote-as 1111
neighbor a.a.a.a soft-reconfiguration inbound
neighbor a.a.a.a weight 30000
neighbor b.b.b.b remote-as 2222
neighbor b.b.b.b soft-reconfiguration inbound
neighbor b.b.b.b weight 30000
maximum-paths 2
no auto-summary
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 a.a.a.a
ip route 0.0.0.0 0.0.0.0 b.b.b.b
ip route x.x.x.0 255.255.255.0 Null0
ip route y.y.y.0 255.255.255.0 Null0
ip route z.z.z.0 255.255.255.0 Null0
no ip http server
no ip http secure-server

3 Replies 3

e.ciollaro
Level 4
Level 4