Dom0 does the TCP checksumming, so you do not need to worry - in fact
you should always set this off for DomUs.
Regards,
Daniel
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Tony Placilla
Sent: Monday, February 11, 2008 8:38 PM
To: Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list
Subject: [rhelv5-list] TCP offloading
Admittedly this is a tad bizarre but....
Dom0 host running RHEL 5.1 fully updated
DomU1 & DomU2 running RHEL 4.6 fully updated.
In doing some testing I noticed that I can't ssh between the 2 DomUs on
the same machine. After a little creative Giggling I found that if I do
the following on the DomUs
ethtool -K eth0 tx off
It fixes the issue. My question is what might break if I keep the TCP
checksumming offloaded?
Ethernet controller: Broadcom Corporation NetXtreme BCM5704 Gigabit
Ethernet (rev 10) on the DomO
Tony Placilla <[EMAIL PROTECTED]>
The Sheridan Libraries
Johns Hopkins University
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