| To: | Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [PATCH,pktgen] account for preamble and inter-packet gap |
| From: | Ben Greear <greearb@xxxxxxxxxxxxxxx> |
| Date: | Sun, 28 Nov 2004 19:21:31 -0800 |
| Cc: | robert.olsson@xxxxxxxxxxx, netdev@xxxxxxxxxxx |
| In-reply-to: | <20041128213251.GA9330@xxxxxxxxxxxxxxxxx> |
| Organization: | Candela Technologies |
| References: | <20041128213251.GA9330@xxxxxxxxxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
| User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.3) Gecko/20041020 |
Lennert Buytenhek wrote: Hi! If you account for the Frame Check Sequence when computing bandwidth stats, it's only fair that you count the preamble and inter-packet gap as well. Suggested patch attached. a) When an ethernet NIC claims 100Mbps, does this count the preamble and IPG? b) Or, can send and receive 100Mbps of data by only counting the ethernet header + payload + CRC? If b is true, then I definately would not want to see the IPG and preamble counted. If a is true, then I still don't want it counted, but I would agree that it is worth considering :) Ben -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com |
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