Steve Gaarder writes:
...
> >> Then try copying a large file from AFS to the client's local storage,
...
> Now it gets weird. Iperf shows the same performance with or without
> IPSEC. But if I run iperf under IPSEC, openafs performance jumps back up
> to normal and stays there for several minutes. Does this give anyone any
> ideas?
..
Sounds like some kind of MTU/packet fragmentation problem.
Since this is copying files from the server; the server
should be trying to ship over lots of packets that are as large
as possible - perhaps in your case they're winding up slightly larger.
If you can find a way to capture both the packets on the wire, and
the unencrypted packets on at least one end, you might wind up seeing
interesting weirdnes.
-Marcus Watts
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