Hi everybody,
In VXLAN BGP EVPN, DR, ES helps us prevent loop from BUM traffic. I am wondering how do we prevent BUM traffic from looping in Static VX LAN i.e no control plane learning of MAC via BGP.
For example:
Above:
PC1 is multihomed to PE1 and PE2. We are not using BGP EVPN, PE1 , PE2 and PE3 are configured with STATIC VX LAN where they learn MAC addresses from data plane forwarding.
This is my understanding:
Let say PC2 sends ARP for 10.10.10.5, which is replicated by PE3 to PE1 and PE2. Since we are using Static VX LAN, therefore PE1 and PE2 can not hold election DR, therefore, both PE1 and PE2 sends the ARP on access ports connected to SW, this ARP will be received by PC1, PE1, PE2 again from access port , PE1 and PE2 will replicate this ARP to PE3 and to each other on over L3 Cloud, thus creating a loop.
If above is true, then we do not have loop prevention against BUM traffic in Static VXLAN?
Thanks and have a good weekend!!