length of captured packets more than MTU

Posted by kumar on Stack Overflow See other posts from Stack Overflow or by kumar
Published on 2010-02-28T12:15:03Z Indexed on 2010/05/02 20:38 UTC
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Hi, I m running iperf between two machines (linux) and I can observe the mtu of both the interfaces connected is 1500.

I ran tcpdump to capture packets and I observed some packets have "length as 2962"....how come this is possible with mtu as only 1500?

Please clarify. Thanks!

Note: flags field is set as DF. and proto is TCP

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