Q: For VPLS network, when Router learned MAC address, it will synchronize to all of LPU, but why the number of MAC address table is not consistent for different LPU?
A: for NE40E&80E implementation, it will judge the outbound interface of this packet which router learned source MAC address. The different type of outbound interface has different process.
Outbound interface is PW side: MAC address will synchronize to all of LPU
Outbound interface is AC side, but is Eth-trunk port: MAC address will synchronize to all of LPU
Outbound interface is AC side, but is physical port: MAC adderss will just only learn on the downstream LPU which has outbound port