[c-nsp] QinQ 4500X -> ME3600 and access(pop) multiple inner vlans

Erik Sundberg ESundberg at nitelusa.com
Tue Feb 2 04:40:50 EST 2016




You must do switchport commands
Services Instance is just a number, we keep it the same as the VLAN Id
Under the Service Instance you specify the VLAN ID with endcapsulation dot1q x
Rewrite ingress Tag POP 1 symmetric  -- This removes the first VLAN Tag on in incoming frame, if you do pop 2, it removes the 2 VLAN Tags.

First Example is VPLS with Bridge Domains. Bridge domain ID does not have to the same as the VLAN Id
Second Example is EoMPLS XConnect

l2 vfi  VPLS1 manual
 vpn id 41
 bridge-domain 41
 neighbor encapsulation mpls

interface GigabitEthernet0/19
 switchport trunk allowed vlan none
 switchport mode trunk
 mtu 9180

!VPLS Example
 service instance 41 ethernet
  encapsulation dot1q 41
  rewrite ingress tag pop 1 symmetric
  bridge-domain 41

!EoMPLS Example
service instance 117 ethernet
  encapsulation dot1q 117
  rewrite ingress tag pop 1 symmetric
  xconnect 275 encapsulation mpls pw-class L2VPN
  xconnect <Remote router IP> <Unique ID in the AS>

I hope this helps.

-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of CiscoNSP List
Sent: Tuesday, February 02, 2016 3:28 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] QinQ 4500X -> ME3600 and access(pop) multiple inner vlans

Hi Everyone,

We have an AGG port(Standard trunk port) to a carrier on a 4500X - Port has multiple customer vlans for p-t-p eth services.

A service they have released will allow us to connect to azure/office 365 via QinQ(Carrier doing QinQ, not us) - i.e. We agree to an outer vlan tag with the carrier, and they create QinQ tunnel to azure/office 365...then multiple inner vlan tags are agreed to between us/azure for various services over this QinQ tunnel.

My question is this:

With our current setup (i.e. 4500X, standard dot1q trunk), we would just tag the outer vlan for the carrier to use for the QinQ tunnel to azure...this is fine, but for us to be able to "access" the inner vlans, Im hoping we can trunk this outer vlan to an ME3600, and then pop each inner vlan, and use them as needed.....Is this possible? ie will the "inner" tags be maintained going through the 4500X, and if so, if someone could point me in the direction of ME3600 docco that details how to pop the individual inner vlans, it would be greatly appreciated.


Carriers outer vlan is 800
Inner tags from azure are 10,20,30


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