[28227] in North American Network Operators' Group
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daemon@ATHENA.MIT.EDU (Howard Smith)
Thu Apr 20 21:28:18 2000
Message-ID: <20000421012553.29465.qmail@web3902.mail.yahoo.com>
Date: Thu, 20 Apr 2000 18:25:53 -0700 (PDT)
From: Howard Smith <namdl8r@yahoo.com>
To: nanog@merit.edu
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Errors-To: owner-nanog-outgoing@merit.edu
Actually:
> 3) The best way to manage this situation is to use
> the Class of Service per-VC queuing feature. This
> will create a separate queue for each PVC, and will
> insure that offending PVCs don't affect other PVCs
> on the same interface. What it will also do is link
> Layer 2 traffic engineering (ATM traffic shaping) to
> Layer 3 flow control by using WRED to throttle TCP
> flows on PVCs which are exceeding their ATM PVC
> limits. As the TCP windows close, the packet flows
> will be reduced until they fit within the shaped
> PVC's limits.
Only one VC queue on the OC12 ATM interfaces on the
GSR series. So, is it queuing delay or cell loss
slowing it down?
end
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