nanog mailing list archives

Re: Jumbo frames


From: Andy Davidson <andy () nosignal org>
Date: Thu, 29 Mar 2007 08:56:17 +0100



On 28 Mar 2007, at 00:28, Jim Shankland wrote:

Jumbo frames seem to help a lot when trying to max out a 10 GbE link, which is what the Internet land speed record guys have been doing. At 45 Mb/s, I'd be very surprised if it bought you more than 2-4% in additional throughput. It's worth a shot, I suppose, if the network infrastructure supports it.

The original poster was talking about a streaming application - increasing the frame size can cause it take longer for frames to fill a packet and then hit the wire increasing actual latency in your application.

Probably doesn't matter when the stream is text, but as voice and video get pushed around via IP more and more, this will matter.


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