L2VPN

[Ab26]

What are the possible ways to tunnel L2 traffic between more than 2 locations? The set up I have has MPLS in the core, however the locations are connected to different IP based segments. For example location-1 will be connected to an IP based segment, then this segment is connected to the core, and from there it reaches other segment. 

The challenge I have is I have to have a L2 tunnel solution that works on ISR-1100 or ASR-920. I have read few documents about L2TPv3 but none of them explains what sits behind these routers. All documents shows the PE directly connected to one another. How about VPLS and EVPN, they both are supported on the platforms I have, do they require a special config on the core/distribution? 

[balaji.bandi]

If you deploy VPLS to layer 2, it extends one point to another point

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/layer2/configuration/xe-16-12/layer2-config-16-12-book/layer2-config-16-12-book_chapter_01.html

do they require a special config on the core/distribution? 

It depends on where this will be. The above-mentioned Layer2 network was a Service Provider network. Core/distribution in the Campus (then, no configuration is required; just use Layer 3 / Layer 2 configuration, depending on the requirement).

[Ab26]

Thanks for your reply! 

L2 VPN is needed between different CE belongs to one customer, where the customer wants to extend his L2 network. Our core is MPLS based. I think what you shared is QinQ tunneling, write? I came across it yesterday. It requires trunking between the PE which is not the case in this set up.

[balaji.bandi]

So, to understand clearly, you are a service provider? Or do your customers have MPLS Links and extend the L2VPN across your branches? May I not clear

any high-level diagram also helps here.

Note: I know that by using IOS XR, you can achieve L2VPN point-to-multipoint 

[Ab26]

I'm work for the service provider. My customer has multiple locations therefore I'd prefer for have a solution that's P2MP instead of configuring Full mesh with L2TPv3. We don't run VxLAN in our core, we have instead MPLS. unfortunately I don't have a diagram i could share at the moment.

I know platform like you mention, XR or even ASR1000, and Nexus offers more features. But unfortunately the case I have is to find a L2 tunneling that could work in lower platform.

[balaji.bandi]

If you are a service provider looking for a solution, contact a Cisco partner to assist you based on the information gathering exercise and what support you need based on the device model you have deployed.

[Ab26]

This is a small scale request, may and may not be implemented.

For bigger scale one should go with VxLAN