Rsync not able to transfer over jumbo frames?

Clark webclark at
Fri Oct 5 00:15:39 GMT 2007

Let me guess that you are going through a switch... does the switch
support jumbo frames?  Perhaps the simple ssh traffic and "other
methods" does not generate any frames over your switch's capacity.

Go to the mfg web site and read the spec sheet.

The network layer is below rsync.  rsync should be independent and
should not try to be aware.

Jake Conk wrote:
> Hello,
> I have 2 network cards on my 2 of my computers that I am trying to
> transfer data on. The second network cards are specifically for
> transferring files between the two so I enabled jumble frames by
> setting the mtu to 9000. I seem to be able to connect between the two
> via ssh and other methods using this setting so I thought everything
> was working right until I tried rsync. I used the following command
> and got the error below:
> # rsync -auv -e 'ssh' root at /srv/data
> Password:
> receiving file list ... Read from remote host
> Connection reset by peer
> rsync: connection unexpectedly closed (8 bytes received so far) [receiver]
> rsync error: unexplained error (code 255) at io.c(459) [receiver=2.6.8]
> I'm using rsync 2.6.8 on both ends and never had this problem before
> until I changed the mtu. Anyone know of a way to fix this or does
> rsync not work with jumbo frames?
> Thanks,
> - Jake

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