QinQ vlan rewrite

1. ES port on Cisco 3750Metro

interface FastEthernet1/0/1

 description ***** To Customer A inner VLAN 10 *****

 switchport access vlan 2001             ! This will be the outer VLAN tag

 switchport mode dot1q-tunnel

!

interface FastEthernet1/0/2

description ***** To  Customer B inner VLAN 20 *****

 switchport access vlan 2002             ! This will be the outer VLAN tag

 switchport mode dot1q-tunnel

!

interface GigabitEthernet1/1/2

 description **** upstream link ****

 switchport trunk allowed vlan 2001-2024,

 switchport mode trunk

 switchport vlan mapping internal dot1q-tunnel 2001 10 external dot1q-tunnel 2200 10

 switchport vlan mapping internal dot1q-tunnel 2002 20 external dot1q-tunnel 2200 20

!

2. Flexible VLAN Tag Rewrite.(ES/ES+ card on 7600)


Ref: http://ccie-in-3-months.blogspot.com/2009/06/evc-flexible-vlan-tag-rewrite.html


3. Configuring the VLAN ID Rewrite Feature for the Cisco 12000 Series Routers


PE1

interface GigabitEthernet0/0.2

encapsulation dot1Q 2

no ip directed-broadcast

no cdp enable

xconnect 5.5.5.5 2 encapsulation mpls

remote circuit id 3

PE2

interface GigabitEthernet3/0.2

 encapsulation dot1Q 3

 no ip directed-broadcast

 no cdp enable

 xconnect 3.3.3.3 2 encapsulation mpls

  remote circuit id 2

Ref: 

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/atom25s.html#wp1279134 

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/qinq.html#wp1043332

http://www.cisco.com/en/US/docs/ios/mpls/configuration/guide/mp_any_transport.html#wp1047047