Lost management network after vmnic return

[Slona_RS]

Hi guys! Here is an issue.

I had vswitch0 set up with 4 physical vmnics in it (no lacp, default teaming based on originating port id). There was several vlans at this switch, including VMkernel for management network. Everything worked perfect.

Then I decided to make some experiments and disconnected two vmnics from this switch. After I played a bit, I returned all switch-side configuration back and tried to add these vmnics back to vswitch0. But any time I add vmnic back I immediately lose connection to management network, so the only way to restore it is to disable port on physical switch and remove vmnic from vswitch0.

How then I can add them back now?

[Slona_RS]

Ah, i waited a night, returned in the morning and successfully added the ports back. They were blocked by spanning tree, i assume. So there needed some time to let them up.

[Slona_RS]

Ha. i was too fast with the answer: NICs are still unavailable. They can be added back as 'standby'. But as soon as you mark them active, traffic goes nowhere. I tried to make another VMKernel and check the connectivity and seems no traffic comes through. Switch-side ports were tested and they are ok.

The only idead i have is to reboot the server itself, but its production one, so i can tdo this right now.

I am just surpirsed by the situation, that after i tried to link these NICs with iscsi, they just stopped working at all.

[NathanosBlightc]

As you said there is a default failover setting of the vSwitch, I don't ask about it. But are you sure there is no special configuration on the ports of the physical switch-side? for example ether-channel / LACP ... or even port security settings? Can you check it please before you try to check the virtual switch-side...