[AusNOG] Cheap Q-in-Q Switch Recommendations

[James Mcintosh]

Understood. I would ensure the inner VLAN id's are unique.



----- Original Message -----
From: Mark ZZZ Smith <markzzzsmith at yahoo.com.au>
To: James Hodgkinson <yaleman at ricetek.net>
Cc: "ausnog at lists.ausnog.net" <ausnog at lists.ausnog.net>
Sent: Wednesday, 31 July 2013 7:39 AM
Subject: Re: [AusNOG] Cheap Q-in-Q Switch Recommendations





----- Original Message -----
> From: Mark Newton <newton at atdot.dotat.org>
> To: James Hodgkinson <yaleman at ricetek.net>
> Cc: "ausnog at lists.ausnog.net" <ausnog at lists.ausnog.net>
> Sent: Tuesday, 30 July 2013 5:02 PM
> Subject: Re: [AusNOG] Cheap Q-in-Q Switch Recommendations
> 
> 
> On Jul 30, 2013, at 3:52 PM, James Hodgkinson <yaleman at ricetek.net> wrote:
> 
>>  Is this a troubleshooting thing, or a component of a bigger design?
> 
> My guess is that James is planning to use it as part of the infrastructure 
> connecting to
> an NBN NNI, where sessions are handed off to RSPs as q-in-q encapsulated vlans.
> 

One thing to remember in that scenario is that the inner tag values could be duplicated (the combination of the inner and outer tag values is what uniquely distinguishes the service within the link they arrive over), and you'll need some other way to ensure packets from two different services don't get mixed together by your outer tag stripping switch.


> It really is just a wild guess though.
> 
>   - mark
> 
> 
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