The MAC for a loopback is added to the L2FIB only when the loopback interface is added to a BD as BVI. If loopback MAC of a BVI is changed subsequently, there is no mechanism to automatically update its MAC in the L2FIB. -John
From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Gudimetla, Leela Sankar Sent: Thursday, May 17, 2018 9:38 PM To: vpp-dev@lists.fd.io Subject: [vpp-dev] L2fib entry not updating for BVI Hi, I have created a loopback interface (with MAC address and instance ) and added it to a bridge as BVI. I see the interface MAC address is getting added to l2fib since it is a BVI. But when I change the interface MAC address (loopback’s), I don’t see the corresponding l2fib entry is not getting updated whereas the interface MAC is getting updated. Is the l2fib entry not-getting-updated for BVI upon changing the interface-MAC, expected? If yes, could you explain why? Thanks, Leela sankar