[OpenAFS] Re: client hangs with 1.2.13 redhat 9 servers

Joe Buehler jbuehler@spirentcom.com
Fri, 04 Feb 2005 13:58:06 -0500


A further point of information.  Using tcpdump on the main
two fileservers I see a lot of udp checksum errors.
One of the machines has fragment reassembly timeouts, which
probably explains the AFS delays.

I am a bit puzzled by tcpdump claiming errors in the UDP
checksum for *outgoing* packets on one of the machines,
however.  At what point does tcpdump hook into the
ethernet hardware?  Seems like UDP checksums in outgoing
packets should be impossible...

Is there a way to turn off the use of large datagrams on
the server side?  Given the udp problems, it might work better
(at least) with fragmentation.

Joe Buehler