Hi Spenser,

What if the customer connected to FESX as normal VLAN (non Q-in-Q) and
the Q-in-Q is built by FESX for the backbone (FESX to MLX). Following
is the scheme and the backbone ring topology.

Customer Node <-(Normal VLAN)-> FESX <-(Q-in-Q)-> MLX

MLX <-> FESX <-> FESX <-> ... <-> FESX <-> return back to MLX

We don't want to register new VLAN on each backbone interface of FESX
in addition of new customer nodes of previously registered customers.

Best regards,

> ---------- Forwarded message ----------
> From: <[email protected]>
> To: <[email protected]>
> Date: Fri, 19 Dec 2008 10:59:36 +0800
> Subject: Re: [f-nsp] VPLS and Q-in-Q
> Dear Lazuardi:
>
>
> The following may be the case you have met:
>
> The Q-in-Q customers are connected to FESX. You have to configure the 
> following command in FESX and MLX.
>
> For FESX
>
> jumbo
> aggregated-vlan
> tag-type 9100 ethernet 13 to 24(the ports to connect Q-in-Q customers)
>
> vlan 100
> tag e 1 (Uplink port to MLX)
> untag e 13(the ports to connect Q-in-Q customers)
>
>
>
> For MLX
>
> default-max-frame-size 9216
>
> Notice:
>
> 1. Jumbo and "default-max-frame-size 9216" are to make sure FESX and MLX can 
> support frame up to 9K bytes. The FESX and MLX need to reload to enable this 
> feature.
>
> 2. Aggregated-vlan is to make FESX to support frame upto 1536bytes.
>
> 3. For fesx, Tag-type 9100 will change all the 12 ports in the same port 
> group(Port 1 to 12, Port 13 to 24, Port 25 to 36, Port 37 to 48) to tag-type 
> 9100. You can't change only 1 port to tag-type 9100.
>
> 4. You can't put the non Q-in-Q cutomer(Normal 8100 tagging or 8100 untag) in 
> the Q-in-Q port group(9100 untag).
>
> 5. The vlan 100 is the outter vlan id and the Q-in-Q port has to be untagged. 
> Vlan 100 is the example, you may choose any vlan id as the outter vlan id.
>
> 6. The Q-in-Q port will ignore customer (inner) vlan id since the FESX will 
> look customer vlan is as payload'This is because that the Q-in-Q port is 
> tag-type 9100 untagged port..
>
> 7. All the Q-in-Q customer's original valn priorities will be substituted by 
> the priority of outter vlan id. This means that customer will loss the QoS 
> assignment if cutomer have assign different priority to different vlan id.
>
> 8. The Q-in-Q customer will need to use 8100 tag-type tagging port to connect 
> FESX 9100 tag-type untagged port. You have to change to other tag-type if 
> Q-in-Q customer use 9100 tag-type tagging port to connect FESX.
>
>
> Regards,
> Spenser.
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