Regarding NIC teaming on ESXI

[NetSystem]

Hi all,

I have 2 Dell server and one huawei switch. I configured NIC teaming (2 uplink ports, both active/active) in each server, where these servers connect to Huawei Switch s5700.

On switch, I have configured all 4 ports to access port with same vlan. So, when one VM of one server communicates to other VM of other server, packets seemed to be doubled. I tried changing one NIC to be active and other be on Standby, but the issue still reside.

So for resolving this issue, should I use LACP in switch and similarly configure LACP using Virtual distributed switch using vcenter on both ESXI host? But I am not that familiar to distributed switch configuration as well, so could anyone suggest what can be done for this case?

Regards,

Anuj

[AntareSLyu]

LACP is only supported by vDS, you may config LACP by the following KB.

LACP Configuration in vSphere 6

[NetSystem]

Ok, I will try that as well...

But what i have not understood is how both nics on a server are receiving packets, as one is configured as active and other as standby nic.

[daphnissov]

Show your ESXi host networking configuration, please.

[NetSystem · Accepted solution]

The issue is resolved now.

Previously, the load balancing in nic teaming was configured as 'Route based on IP hash' which caused the UDP packets to duplicate. Now, I changed it to 'Route based on originating Port ID', so no duplication happened.

Thank you all.