[c-nsp] ME3600 config help, Q in Q

[Vitkovský Adam]

Hi James, 

Under each Ethernet service instance you can define the following. 

1) What frames arriving from the trunk port are to be associated with the particular service instance. 
-that is accomplished with the "encapsulation" command. 
-in your case "encapsulation dot1q 1048" dictates that service instance 10 will accept only frames with top VLAN tag 1048 followed by any subsequent VLAN tag(s) or data(IP packet). 

2) Ingres VLAN tag manipulation removing, adding or translating 1 or 2 topmost tags. 
-that is accomplished with the "rewrite" command.
-in your case pop-ing the first/single topmost VLAN tag. 

3) Bridging operation aka what to do next with the frame (complete frame i.e. data and possibly adjacent/remaining VLAN tags). 
-that is accomplished with the "bridge-domain" command. 
- in your case the frame ends within bridge-domain 10. 

IP interface for bridge-domain 10 is interface vlan 10. 
But as Pshem already mentioned IP operation can be done only on untagged frames. 

Though I don't understand, how the service is supposed to operate, from your other email. 
Because if the provider is creating a platform for the hub and spoke setup than they are responsible for pop-ing the top tag 1048. 



adam

> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> james edwards
> Sent: Friday, August 08, 2014 6:17 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] ME3600 config help, Q in Q
> 
> I am trying to configure an interface on a ME3600 to accept Q in Q from a
> provider. The p-vlan the provider is using is 1048 and they are carrying
> customer vlans (c-vlan) 1058-1098, one from each site. I'm new to the 3600
> and have not done Q in Q on it yet. I've worked up this much of the config
> but it does not seem right. Can anyone give me some pointers or links to help
> me along ? I've only got one customer site configed, there will be 14.
> 
> 
> !
> vlan 1048
>  name WINDSTREAM
> !
> vlan 1058
>  name WINDSTREAM-HOBBS
> !
> interface GigabitEthernet0/6
>  description Windstream VLS IP.LVXX.xxxxxx..WCI.001  port-type nni
> switchport trunk allowed vlan none  switchport mode trunk  service instance
> 10 ethernet
>   encapsulation dot1q 1048
>   rewrite ingress tag pop 1 symmetric
>   bridge-domain 10
>  !
> !
> interface Vlan1048
>  description Windstream VLS
>  no ip address
> !
> interface Vlan1058
>  description WINDSTREAM-HOBBS
>  ip address xxx.xx.xx.1 255.255.255.0
> 
> 
> 
> Thanks,
> 
> James
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