05-13-2015 01:31 PM - edited 03-08-2019 12:00 AM
We just upgraded our core switch to a Nexus 9396, which is connected to dual UCS 6248 FI's and also individually to some Dell R710's with a dual 10Gb Ethernet card. When connecting these standalone servers with an etherchannel VPC, the management IP address goes up and down and some hosts can talk while others can't. If I leave one port disabled, it works fine. However, as soon as both are enabled, connectivity goes down. These ESXi servers are on a standard license, so distributed switches are out of the question. I did enable an eval license and setup a vDS using the enhanced LACP and that works great, it just won't work as a standard etherchannel with a standard virtual switch. The connectivity to the 6248's is also working without any issues running in LACP. Below is the configuration:
Nexus SW01:
interface Ethernet1/5 description ESX vPC Member switchport mode trunk channel-group 202 no shutdown interface port-channel202 description ESX switchport mode trunk vpc 202
Nexus SW02:
interface Ethernet1/5 description ESX vPC Member switchport mode trunk channel-group 202 no shutdown interface port-channel202 description ESX switchport mode trunk vpc 202
ESXi configuration is a standard switch with "Route based on IP hash" and both adapters active. Am I missing something? Is this setup not supported? Any help/advice would be greatly appreciated.
Thanks!
Solved! Go to Solution.
04-04-2016 06:31 AM
Have seen the same issue within our environment noticed constant vlan flapping without port-channel but with port-channel ESXi complaint bitterly. I'm still searching for proper solution(s) to address this problem. By the way, running standard not distributed switch.
05-10-2016 07:15 PM
You should not bundle vmnics on the ESXi standard vswitch as long as you do not config the connected Eth in a vPC on Nexus peer switch.
11-19-2017 09:00 AM
FYI:
“Route base on IP hash” If the switch side is set to port channeled (VPC) If it is just multiple connection with no port channel use “originating virtual port ID”.
Please read the articles below when you get a chance.
https://kb.vmware.com/s/article/2006129
02-22-2018 05:40 AM
Hi there,
What Load-Balancing method did you set for this on the Distributed Switch to allow for a VPC to be configured ?
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