Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I have VMWare ESXi 5.1 host with several gigabit links, connected to a LACP and 802.3ad-capable switch, in a static LACP mode on a switch, with "IP hash" load balancing mode in ESXi. I'm currently using vSphere standard switch.

It seems like while load balancing works ok for multiple TCP/IP streams to/from guest VMs, no single stream can utilize more than one link (e.g. 1Gbps), due to IP hash load balancing. And this is of course the only load balancing mode that supports LACP on ESXi.

Is there anything I can do to allow one TCP/IP stream to/from guest VM to utilize several gigabit links at the same time?

share|improve this question
add comment

2 Answers

No. You don't have any recourse other than expanding to a higher bandwidth (10GbE) connection.

What are you trying to do that requires multiple Gigabit bandwidth?

I do use LACP with distributed vSwitches now on vSphere Enterprise Plus systems. It works. But the benefits can be seen most with storage and vMotion traffic. Not individual VM connections to the outside.

share|improve this answer
add comment

No, sorry; none of ESXi's available load balancing mechanisms allow for a single TCP connection to be spread among multiple physical NICs at the same time.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.