Now I know how to transport vlan between CE but my problem is to understand the difference.
In my mind, "Vlan-based" use one VLAN operator (So 1 pseudowire) to transmit all frame tagged or not to CE2. And, "QinQ" allow to do the difference between different Customer VLANs and forward accross MPLS backbone frame on different VLAN operator.
2 questions :
1. Have I correctly understand ??
2. If I'm right, Why we need QinQ ?? What QinQ bring it more than VLAN-BASED ??
3. My goal is to create on Site 1 any vlans and with VTP transport them to Site 2. What kind of these two technology based on VLAN use ??
I have personally never tested the Vlan tagging under EOMPLS, but as per concept, you will need QinQ tunneling to put customers' tag traffic in EOMPLS, because if you will do portbased EOMPLS, it wont accept the tagged traffic, and if you will do vlan-based EOMPLS then PE will need two vlans, one for his local identification and second for customer's tag.
In the first link we can see the dot1q tunnel mode with some layer 2 protocol transport CDP, STP, and VTP.
Ideally this is my first goal --> transport VTP on site 2 by EoMPLS but it was only on switch multilayer (like 7600) or with specially cards, I don't know. But what I know it's with my 7200 I don't have command switchport to activate switchport mode dot1q-tunnel and l2protocol-tunnel vtp for example.
Is it true ??
Secondly, in the second link I read I should to be able to transport vlan frame of site 1 to site 2 but simply carry and not propagate different vlan that I created !!!
Introduction: The "external-out enable" command is available for
configuration under the "router ospf process" in case of the IOS-XR
operating system. This command basically enables advertisement of
intra-area routes on the device as external routes in th...
IntroductionIn this article we'll discuss how to troubleshoot packet
loss in the asr9000 and specifically understanding the NP drop counters,
what they mean and what you can do to mitigate them. This document will
be an ongoing effort to improve troublesh...