VPLS provides the medium to for a E-LAN, and in Cisco implementations, the MAC learning is not actually done by a VPLS instance.
This can be best explained by an example.
PE(SW)-A ---- PE(SW)-B
Now these three PE nodes under VPLS, are only provided the medium to connect to each other using P2P PW forming a full mesh.
For simplicity you can assume they are three switches connected in the above manner using copper. So this copper connecitivity is provided by VPLS.
And at the end of the day the end nodes learn mac addresses using the conventional method of flooding and learning. So you wont find any VPLS specific commands to see what mac address is the VPLS instance flooding. As its only providing a medium for connectivty. And the flooding is done by the end nodes. as they treat the VPLS VC as one of the outgoing port.
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