Comment 1 for bug 1472796

RPF nexthop for a VM interface flow gets set from layer 3 table routes.
In scenario of intra-VN ecmp traffic originated from ECMP source,
layer3 route is used to set RPF nexthop.
Ideally all ECMP traffic should be treated as layer-3 flow, in this
scenario since destination is Unicast packet gets bridged and
agent asserts since ECMP is not expected for layer2 traffic.

Solution is to force routing by replying for ARP request with VRRP mac
when the source route points to ECMP