NSX Advanced Load Balancer supports multihop BGP. A plain peer configuration is supported in all its variations, including iBGP multihop.
This section explains the following:
eBGP multihop: BGP peers are more than one hop away and in a different autonomous system. BGP peers are not directly connected.
iBGP multihop: BGP peers are in the same autonomous system but more than one hop away.
This feature is supported for IPv6.
To configure eBGP multihop, a per-peer configuration parameter, that is, ebgp_multihop specifies the number of next hops. The following are the two main configuration sections:
Configuring NSX Advanced Load Balancer Controller:
The eBGP-multihop peer. The multihop peer must be configured with the same subnet as that of the interface network
Static/default route to reach the BGP peer
Configuring BGP peer and intermediate routers: Static or default route configuration on the NSX Advanced Load Balancer Controller, intermediate router, and BGP peer.