Vlan to Vlan : L2TPV3 question

CE1 e0/0.201 ------ e0/0.201 PE -----IP CLOUD ----- PE e1/0.140
-----e1/0.140 CE2

PE1
====
int e0/0.201
encap dot1q 201
xconnect 10.1.1.1 33 pw-class TEST
!

PE2
=====
int e1/0.140
encap dot1q 140
xconnect 20.1.1.1 33 pw-class TEST
!

We are connecting CE1(201 vlan) to CE2 (140 vlan )

Q 1 : When vlan tagged pkt of 201 reaches PE1 .. Is this dot1q label
preserved / striped in above config .. There are 2 labels added i
know ( VC label and IGP/MPLS label ) .. But is original label from CE
preserved ?

Q 2 : How is it changed / re-written at PE2 ? Kindly explain

I think things will start making sense if these 2 questions are answered .

Thanks in advance
Gaurav Madan

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Received on Fri Mar 04 2011 - 23:30:28 ART