CNP vs CEP

[Alaa_Naifa]

I am trying to do a very simple setup.

we have one provider connecting to our Carrier Ethernet Metro.

provider is sending me with 3 VLAN which i usually take them inside one vman ( port is configured untag) and take it through our Metro.

now what i am trying to archive is to allow 3 Vlans with specific tag ( like is provider tried to send more vlans or different tags than what was agreed on) these vlans should not enter my VMAN.

[Kevin_Kim]

Yes. you can with CEP.

[Alaa_Naifa]

Yes this is the scenario which we have.

Question is can we do CEP and transport them and do the double tagging ?!

[Kevin_Kim]

I think packets are doubled tagged as CNP when they are transported in a VMAN.

[Alaa_Naifa]

Thanks for the replay Kevin,

but will it have the same effect as using CNP. one more thing, the termination of these vlans will be on a L3 router and its configured as double tag on the router