[cisco-bba] CoS PPPoE problem

[Tassos Chatzithomaoglou]

Andrew, we're using 12.2(31)SB12 and it is working there.

Have a look at the following page:
http://www.cisco.com/en/US/docs/ios/12_2sb/feature/guide/sb8021p2.html

-- 
Tassos

Andrew Snowdon wrote on 07/11/2008 11:48:
> Hi,
> 
>  
> 
> This is my first post so forgive me if it’s in the wrong place.
> 
>  
> 
> I am having an identical problem to this thread 
> http://gossamer-threads.com/lists/cisco/bba/55782#55782. I’ve spent 
> weeks trying to find a solution to this problem and that post is the 
> closest I’ve seen any one come. For the CoS bit to be set for each PPPoE 
> virtual access interface it must be done in the virtual template but 
> this is not allowed as the interface must be a dot1q interface. You 
> cannot use encapsulation dot1Q on a virtual template so there in lays my 
> problem. I’ve enforced a policy map on the virtual template that sets 
> the DSCP field of the IP header and it works fine. This however is of no 
> use to me because we are using PPPoE the extra PPP header between the 
> mac and IP header blinds all of our network devices to the DSCP field 
> and makes it useless. The only way for me to possibly get any type of 
> QoS working on our network will be to use the 802.1p CoS field which is 
> further down the stack. The last post to the thread mentioned above says 
> it works with a newer IOS (I’m running 12.2(16)on a 7301). Is that true? 
> I’m not sure as there are no follow ups. I’m beginning to think that 
> what I want to do is impossible. Surly I’m not the only person to have 
> this problem as PPPoE is a proven technology and used by millions of 
> people every day and I’m sure I’m not the first person ever to try and 
> enforce QoS on a PPPoE network. Any input at all any one has would be of 
> great help and be much appreciated.
> 
>  
> 
> Kindest Regards,
> 
>  
> 
> Andrew
> 
> 
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