Multiple Neighbors over a Layer 3 Fabric
With more than two switches, the first BGP peer for each switch can be created using the fabric-comm-vrouter-bgp-create CLI.
You need to create the rest separately. Here is an example with switch-C added to the previous topology .
Figure 5 - An Example Fabric over Layer 3 Topology
The configuration for this will proceed along the same lines as before. In addition the following steps are required in order to bring switch-B into the fabric:
- In switch-A, create BGP peering to switch-C and create a static route to reach switch-C’s inband network. The way to extend this beyond three switches is to use this extra step in every switch that has more than one BGP peer:
switch-A> vrouter-interface-add vrouter-name vrouter-a ip 184.108.40.206/30 l3-port 11
switch-A> vrouter-bgp-add vrouter-name vrouter-a neighbor 220.127.116.11 remote-as 65003
switch-A> fabric-in-band-network-create 18.104.22.168/30
- In switch-C, use the fabric-comm-vrouter-bgp-create command as before and connect:
switch-C> fabric-comm-vrouter-bgp-create name vrouter-c bgp-nic-l3-port 21 bgp-as 65003 bgpnic-
ip 22.214.171.124/30 in-band-nic-ip 126.96.36.199/24 remote-as 65001 neighbor 188.8.131.52
fabric-network 184.108.40.206/24 bgp-redistribute connected
switch-C> fabric-join switch-ip 220.127.116.11
Joined fabric myfabric. Restarting nvOS...