Enabling Load-Balancing Across Different Paths

The BGP4+ multipath feature can be configured, enabling load-balancing across different paths.
  1. Enter the configure terminal command to access global configuration mode.
    device# configure terminal
  2. Enter the router bgp command to enable BGP routing.
    device(config)# router bgp
  3. Enter the address-family ipv6 unicast command to enter IPv6 address family configuration mode.
    device(config-bgp-router)# address-family ipv6 unicast
  4. Do one of the following:
    • Enter the maximum-paths command and specify a value to set the maximum number of BGP4+ shared paths.
    • Enter the maximum-paths command using the use-load-sharing keyword to set the maximum number of BGP4+ shared paths to that of the value already configured by means of the ip load-sharing command.
    device(config-bgp-ipv6u)# maximum-paths 8
    
    or
    device(config-bgp-ipv6u)# maximum-paths use-load-sharing

The following example sets the maximum number of BGP4+ shared paths to 8.

device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv6 unicast
device(config-bgp-ipv6u)# maximum-paths 8

The following example sets the maximum number of BGP4+ shared paths to that of the value already configured using the ip load-sharing command.

device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv6 unicast
device(config-bgp-ipv6u)# maximum-paths use-load-sharing