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New Member

Catalyst QOS guru needed

I have two switches connected via a metro fiber handoff so the effective bandwidth is 2Mb rather than the 100 Mb that is negotiated to vendor switch I want to protect voice and video at  all cost at the expense of all else.

would it be better to shape traffic to the "real" bandwidth and then within that give priortiy to voice and video or would it be better to police all non voice and video traffic to some subset of the total 2Mb say 1Mb and allow voice and video to have at it as if it were a 100Mb link?

as always thx

4 REPLIES
Super Bronze

Catalyst QOS guru needed

Disclaimer

The  Author of this posting offers the information contained within this  posting without consideration and with the reader's understanding that  there's no implied or expressed suitability or fitness for any purpose.  Information provided is for informational purposes only and should not  be construed as rendering professional advice of any kind. Usage of this  posting's information is solely at reader's own risk.

Liability Disclaimer

In  no event shall Author be liable for any damages whatsoever (including,  without limitation, damages for loss of use, data or profit) arising out  of the use or inability to use the posting's information even if Author  has been advised of the possibility of such damage.

Posting

In theory, it would be better to shape all traffic and then prioritize your voice and video.  Real-time traffic, besides having certain bandwidth needs, often has certain timing needs too.  Prioritization insures voice and video "go next" when there's congestion.  Just policing non-real-time traffic to "guarantee" enough bandwidth for your real-time traffic doesn't guarantee timings.  Shaping with prioritization also makes it easier to insure you're getting enough bandwidth for your priority traffic and allows the non-real-time traffic to takes advantage of all available bandwidth.

New Member

Catalyst QOS guru needed

Do you know if the catalyst 4510 with the 6/E 7/E supervisors support the

shaping average command?

thx

Super Bronze

Catalyst QOS guru needed

Disclaimer

The   Author of this posting offers the information contained within this   posting without consideration and with the reader's understanding that   there's no implied or expressed suitability or fitness for any purpose.   Information provided is for informational purposes only and should not   be construed as rendering professional advice of any kind. Usage of  this  posting's information is solely at reader's own risk.

Liability Disclaimer

In   no event shall Author be liable for any damages whatsoever (including,   without limitation, damages for loss of use, data or profit) arising  out  of the use or inability to use the posting's information even if  Author  has been advised of the possibility of such damage.

Posting

Sorry, don't know, but if you examine the reference manuals for the IOS version you might run on them, it should answer your questions.

Catalyst QOS guru needed

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