Mailing List Archive

LLQ queueing on atm pvc
Hi,

i like to implement LLQ queue on PPPoA and PPPoE running over ATM PVC
(ABR from telco but configured as UBR on our side). Can this help to
offer better QoS? And if so is the solution scalable to thousand of PVC?

Mac
Re: LLQ queueing on atm pvc [ In reply to ]
Hi Mac,

my knowledge isn't too current on recent Cisco innovations in BBA & QoS.
but this is what i do know of. there is no QoS support for PPPoE.
(you could work around this by doing L3 QoS on the IP traffic before
encapsulation into PPPoE).

for the PPPoA, we do support a number of schemes.

http://www.cisco.com/warp/public/105/cbwfqdialer.html
http://www.cisco.com/warp/customer/121/index.shtml#7

it is possible we now support QoS w/ PPPoE but hopefully someone else
can chime in. or you may want to contact your Cisco account team.

cheers
.siva

On Tue, 8 Jul 2003, mac wrote:

> Hi,
>
> i like to implement LLQ queue on PPPoA and PPPoE running over ATM PVC
> (ABR from telco but configured as UBR on our side). Can this help to
> offer better QoS? And if so is the solution scalable to thousand of PVC?
>
> Mac
>
RE: Re: LLQ queueing on atm pvc [ In reply to ]
Siva,

I believe the limitation is that you can't do any sort of fancy queuing
(CBWFQ, LLQ, WRED, etc) on a per virtual-access interface basis.
However, this functionality can be done a per VC basis but caveats apply
depending on what platform/image is being used. Mac, can you let us
know what platform and image you are running? Also, do you have
multiple PPPoE subs per VC? If so, per subscriber fancy queuing will be
an issue.

Cheers,

Andy

> -----Original Message-----
> From: cisco-bba-bounces@puck.nether.net
> [mailto:cisco-bba-bounces@puck.nether.net] On Behalf Of Siva
> Valliappan
> Sent: Tuesday, July 08, 2003 2:13 PM
> To: mac
> Cc: cisco-bba@puck.nether.net
> Subject: [cisco-bba] Re: LLQ queueing on atm pvc
>
>
> Hi Mac,
>
> my knowledge isn't too current on recent Cisco innovations
> in BBA & QoS.
> but this is what i do know of. there is no QoS support for PPPoE.
> (you could work around this by doing L3 QoS on the IP traffic before
> encapsulation into PPPoE).
>
> for the PPPoA, we do support a number of schemes.
>
http://www.cisco.com/warp/public/105/cbwfqdialer.html
http://www.cisco.com/warp/customer/121/index.shtml#7

it is possible we now support QoS w/ PPPoE but hopefully someone else
can chime in. or you may want to contact your Cisco account team.

cheers
.siva

On Tue, 8 Jul 2003, mac wrote:

> Hi,
>
> i like to implement LLQ queue on PPPoA and PPPoE running over ATM PVC
> (ABR from telco but configured as UBR on our side). Can this help to
> offer better QoS? And if so is the solution scalable to thousand of
PVC?
>
> Mac
>
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