Re: [Xen-users] dom0 lost packets.

["Bogdan B. Rudas" <brudas@xxxxxxxxxxx>]

On Wed, 23 Apr 2008 13:12:11 -0400
"Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx> wrote:
> 
> I heard on the list that disabling checksum offloading on the NIC
> with ethtool helps clear it up. I believe it is on TX only and this
> is of course on the physical interface in dom0.
> 

Thanx for your advice.

I did:
ethtool -K eth0 rx off
ethtool -K eth1 rx off
ethtool -K eth0 tx off
ethtool -K eth1 tx off


# ethtool -k eth0
Offload parameters for eth0:
Cannot get device udp large send offload settings: Operation not supported
rx-checksumming: off
tx-checksumming: off
scatter-gather: off
tcp segmentation offload: off
udp fragmentation offload: off
generic segmentation offload: off

# ethtool -k eth1
Offload parameters for eth1:
Cannot get device udp large send offload settings: Operation not supported
rx-checksumming: off
tx-checksumming: off
scatter-gather: off
tcp segmentation offload: off
udp fragmentation offload: off
generic segmentation offload: off

There are still packet loss:

dom0: 

44745 packets transmitted, 43039 received, 3% packet loss, time 44745397ms
rtt min/avg/max/mdev = 0.135/0.199/4.386/0.061 ms

domU:

44643 packets transmitted, 43879 received, 1% packet loss, time 44643431ms
rtt min/avg/max/mdev = 0.153/0.208/2.991/0.043 ms

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users