Flow Control

[wolfraider]

We have been requested by Cisco TAC to enable flow control on all our servers. Is there a way to enable flow control on our ESX 4 servers or the VM's themselves? We tried searching for this but we couldn't find anything for vSphere 4. Flow control is already enabled on the switches.

[weinstein5]

The only thing that you can control is outbound traffic from your the virtual network interfaces on your ESX hosts - this can be done at the port or port group or at the virtual switch.- you can set limits for average rate, burst size and peak rate -

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[BenConrad · Accepted solution]

It's probably already enabled on your pNic driver:

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=101341...

Ben

[wolfraider]

Sorry about the delay. We checked our Cisco switches and they verified that flow control is on on the ESX servers. So, flow control is on by default.