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Date: Wed, 02 Sep 2009 09:16:10 -0500 From: Jack Bates <jbates@brightok.net> To: Mikael Abrahamsson <swmike@swm.pp.se> In-Reply-To: <alpine.DEB.1.10.0909020835040.20521@uplift.swm.pp.se> Cc: nanog <nanog@nanog.org> Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org Mikael Abrahamsson wrote: > > If you're dropping packets, you're already over the cliff. Our job as > ISP is to forward the packets our customers send to us, how is that > compatible with upgrading links when they're so full that you're not > only buffering but you're actually DROPPING packets? Many ISPs don't even watch the dropping rate. Packets can easily start dropping long before you reach an 80% average mark or may not drop until 90% utilization. Dropped packets are a safeguard measurement to detect data collision that fills the buffers. One could argue that setting QOS with larger buffers and monitoring the buffer usage is better than waiting for the drop. Jack
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