On 01/05/2012 04:04 AM, Jesse Gross wrote:
On Wed, Jan 4, 2012 at 8:32 AM, Hans van Kranenburg
<[email protected]>  wrote:
Any idea?

delta.mgt.kantoor.mendix.nl:~ 0-# ethtool -k eth0
Offload parameters for eth0:
rx-checksumming: on
tx-checksumming: on
scatter-gather: on
tcp-segmentation-offload: off
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: on
large-receive-offload: off
ntuple-filters: off
receive-hashing: off

What happens if you turn off tx checksum offloading on the interfaces
with IP addresses assigned to them?

Yay! Knowing this, and looking at the list archives again... it seems to be a rather common issue.

# ethtool -K ovs0.31 tx off
# ethtool -k ovs0.31
Offload parameters for ovs0.31:
rx-checksumming: off
tx-checksumming: off
scatter-gather: off
tcp-segmentation-offload: off
udp-fragmentation-offload: off
generic-segmentation-offload: on
generic-receive-offload: off
large-receive-offload: off
ntuple-filters: off
receive-hashing: off

--
Hans van Kranenburg - System / Network Engineer
+31 (0)10 2760434 | [email protected] | www.mendix.com
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