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Hi All, Was troubleshooting some odd VM network issues and discovered that we're seeing dropped packets + retransmissions across multiple domU OS's and dom0 hardware platforms. xendev01 ~ # tshark -R "tcp.analysis.retransmission " -i vif7.0 Running as user "root" and group "root". This could be dangerous. Capturing on vif7.0 3.054257

...eployment with a centos 6.6 domU. Since I?m seeing the retransmissions on the VIF, I don't think it's related to the network stack but just in case.. Each host is connected via LACP with vlan tagging to a pair of stacked cisco 3750's. Host networking config is here: http://dpaste.com/1Q6NY3Y The vm is on br99 here. This is easily reproducable by just generating a 250mb random file and doing an scp, while watching with tshark: tshark -R "tcp.analysis.retransmission" There's no visible impact to the connection the vast majority of the time, which is why I think this ha...

...omU. > > Since I?m seeing the retransmissions on the VIF, I don't think it's related to > the network stack but just in case.. Each host is connected via LACP with vlan > tagging to a pair of stacked cisco 3750's. Host networking config is here: > > http://dpaste.com/1Q6NY3Y > > The vm is on br99 here. > > This is easily reproducable by just generating a 250mb random file and doing > an scp, while watching with tshark: > > tshark -R "tcp.analysis.retransmission" > > There's no visible impact to the connection the vast majori...