Hi,

I have some questions about bridging and I would like help to find the answers:

I've made a diagram to give details about the scenario:



My questions are:

1 - Do the bridge will untag the frame ingressing before forward it to the VPLS tunnel?
2 - Do I need to increase the MTU of the bridge?
3 - Do I need to increase the MTU of the VPLS?
4 - Can I disable the Control Word to decrease the full frame - from 1526 to 1522 - without loss performance? (the MPLS cloud has MTU = 1530)

???

1 - Do the bridge will untag the frame ingressing before forward it to the VPLS tunnel? - No, there will be 802.1Q over VPLS.
2 - Do I need to increase the MTU of the bridge? In my lab I used standart MTU
3 - Do I need to increase the MTU of the VPLS? Used standart MPLS MTU 1508.
4 - Can I disable the Control Word to decrease the full frame - from 1526 to 1522 - without loss performance? (the MPLS cloud has MTU = 1530). Yes, you can.