Forum Discussion

Marc_57522's avatar
Marc_57522
Icon for Nimbostratus rankNimbostratus
Jun 06, 2011

High ping latency and loss of connection

I've installed the trial of LTM VE on ESXi 4.1 and, most of the time, it's working perfectly. Randomly, however, I lose connectivity to the LTM virtual machine and all nodes behind it. During this tim...
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virtualization
John_Hall_11177's avatar
John_Hall_11177
Historic F5 Account
Jul 26, 2011
Marc,

 

If LTM held packets for 10ms, then you'd see the same delay on LTM to LTM interfaces. One other diagnostic step would be to temporarily switch the nodes you're communicating with to the e1000 driver. We've seen some very weird behavior with VMware when receiving traffic on VMware's VMXNET 3 driver resulting in very large packets being handed off to upper layers that are not expecting them. Apparently the VMXNET 3 driver doesn't always obey the configured MTU of the guest.