[ofa-general] [Bug 450] IPoIB BW drop (measured with iperf) with mtu=1500 on x86 RH4UP3

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https://bugs.openfabrics.org/show_bug.cgi?id=450





------- Comment #4 from mst at mellanox.co.il  2007-03-13 09:18 -------
Subject: Re: [ofa-general]  New: IPoIB BW drop (measured with iperf)
        with mtu=1500 on x86 RH4UP3

> >Why are you playing with ifc mtu?
> 
> We needed to do some IP forwarding tests between IB and Ethernet and
> wanted to have the same MTU for the eth0 and ib0 interfaces, after
> that we reproduced that in a peer to peer configuration.

OK but PMTU discovery would do this better, won't it?
As a side note, with 1.5K MTU it's probably better to use datagram mode
anyway.


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