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i have 3 kvm hosts running open vswitch with many virtual machines.

These vms are on two separate tenants and GRE tunnel carries private traffic between these 3 hosts.

But is there a better way to do GRE tunneling,because currently these GRE tunnels are on mesh and if i want to extend from 3 hosts to 10 hosts i should make 9 connections to each other.

Is it possible to implement star topology with open vswitch.

Kevin Parker
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1 Answers1

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That may not be a solution since that centralized open vswicth host can become traffic bottleneck.

but you can do that by specifying all other hosts to use central host as endpoint

from each hosts

ovs-vsctl add-port br1 gr1 -- set interface gr1 type=gre options:remote_ip=IP OF OVS CENTRAL SWITCH

and from central ovs specify each hosts ip

done

but the best way is to use open vswitch vlan tag to seperate traffic with in GRE.

ananthan
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