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BGP Multipath Load Sharing for eBGP and iBGP in an MPLS VPN
eBGP and iBGP Multipath Load Sharing Configuration Example
Example 4-2
configuration mode:
Example 4-2
Router(config)# router bgp 100
Router(config-router)# address-family ipv4 vrf vrf-1
Router(config-router-af)# maximum-paths eibgp 6
Verifying eBGP and iBGP Multipath Load Sharing
Example 4-3
line of output (
Example 4-3
Router# show ip bgp vpnv4 all 10.22.22.0
BGP routing table entry for 10:1:22.22.22.0/24, version 19
Paths: (5 available, best #5)
Multipath:eiBGP
Cisco 10000 Series Router Software Configuration Guide
4-6
configures a router to select six eBGP or iBGP paths as multipaths in address family
Configuring eBGP and iBGP Multipath Load Sharing
shows sample output displayed when you enter the show ip bgp vpnv4 command. The third
Multipath:eiBGP
Verifying eBGP and iBGP Multipath Load Sharing
Advertised to non peer-group peers:
10.0.0.2 10.0.0.3 10.0.0.4 10.0.0.5
22
10.0.0.0 (metric 20) from 10.0.0.4 (10.0.0.4)
Origin IGP, metric 0, localpref 100, valid, internal, multipath
Extended Community:0x0:0:0 RT:100:1 0x0:0:0
Originator:10.0.0.2, Cluster list:10.0.0.4
22
10.0.0.2 (metric 20) from 10.0.0.5 (10.0.0.5)
Origin IGP, metric 0, localpref 100, valid, internal, multipath
Extended Community:0x0:0:0 RT:100:1 0x0:0:0
Originator:10.0.0.2, Cluster list:10.0.0.5
22
10.0.0.2 (metric 20) from 10.0.0.2 (10.0.0.2)
Origin IGP, metric 0, localpref 100, valid, internal, multipath
Extended Community:RT:100:1 0x0:0:0
22
10.0.0.2 (metric 20) from 10.0.0.3 (10.0.0.3)
Origin IGP, metric 0, localpref 100, valid, internal, multipath
Extended Community:0x0:0:0 RT:100:1 0x0:0:0
Originator:10.0.0.2, Cluster list:10.0.0.3
22
10.1.1.12 from 10.1.1.12 (10.22.22.12)
Origin IGP, metric 0, localpref 100, valid, internal, multipath, best
Extended Community:RT:100:1
Chapter 4
) indicates that multipath load sharing is on.
Configuring Multiprotocol Label Switching
OL-2226-23
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Troubleshooting
