[c-nsp] Per-user QoS/Multilink on Virtual-Access interfaces?

[Reuben Farrelly]

On 11/02/2007 8:06 PM, Oliver Boehmer (oboehmer) wrote:
> Reuben Farrelly <> wrote on Friday, February 09, 2007 3:57 PM:
> 
>> Hi,
>>
>> I've been asked to set up some form of QoS on our LNS so that we can
>> selectively enable QoS for users who require QoS facilities, but not
>> globally enable it for all users.  Much to my disappointment it seems
>> to be a less than straightforward excercise in IOS configuration.
>>
>> The users are all DSL users using PPPoATM into a 7200 NPE-G1.  Most
>> are coming in as VPDN over IP but some are VPDN over ATM PVCs.  
>> Currently we have 12.4 mainline on the router which we want to test
>> this on but this can be changed if required.  The users are currently
>> authenticating via RADIUS. 
>> [...]
> 
> per-user QoS for l2tp users requires "Per-Session QoS" feature in
> 12.2SB, previous releases (including 12.4 mainline) only support
> policing, no queuing of any kind as there was no backpressure mechanism
> for those virtual-access interfaces..
> Check out the feature documentation at
> http://www.cisco.com/en/US/products/ps6566/products_feature_guide09186a0
> 080610dad.html for more info and config examples..

Right.  The examples all show policing, and not queueing though - admittedly I 
haven't tried policing, so I may be able to do something with that anyway if 
that's all I have access to.

Now, does 12.2(31)SB2 have these features or is it 12.2(28)SB only?  12.2(31)SB2 
Enterprise is what I am also testing with, all I get with debugging is a 
traceback and no QoS applied at all unless I enable multilink PPP on the 
virtual-template, in which case it works as expected as the QoS policy applies 
to the multilink bundle (but enabling multilink for all customers is a no-go idea).

Without multilink I get this every time:

Feb 11 09:57:49.068: AAA/BIND(0000002B): Bind i/f Virtual-Template1
Feb 11 09:57:49.260: %SW_MGR-3-CM_ERROR_FEATURE_CLASS: Connection Manager 
Feature Error: Class SSS: (QoS) - install error, ignore.
-Traceback= 60EB4164 60EC42D4 623B17E4 623B18A4 60EC455C 60EC4744 60EC4B18 
60EB2BB8 60EB2ED8 60EB2FC8 60EAEAA4 60EAEEC0
Feb 11 09:57:49.264: AAA/BIND(0000002B): Bind i/f Virtual-Access2.1

and no QoS at all.

I'll try 12.2(28)SB if the features aren't in 12.2(31)SB - however I assumed 
given the naming of the branch that the feature had in fact been integrated in..

Thanks for your help so far.

Reuben