10-26-2013 08:27 AM
Hello.
Champagne for who help me to move on the right direction
Sometimes, i lose network connection on some VM (actually one or two time per weeks, but always on a single different ESXi and some VM (not all about 15 to 20 per incident / 40...)
vMotion those VM to another host is enough to raise the network on VMs who lose there connection.
- Restarting the VEM bring back the network but after 10-15min, it falls. There is only the reboot of ESXi to return to a stable situation...
- VMKernel and vMotion are on a Standard vSwitch...
- 3 Cluster ESXi 5.1.0 with 5 nodes each, 1 Cluster Prod, 1 Cluster Dev, 1 Cluster Test.
This issue always impact the same vDs with Nexus 1Kv ... but the one who's on Cluster Prod, and who got 200 Vms...
- Nexus 1000v configuration: L2
- Mac pinning
- Version 4.2.1v2(1.1)
How can I explaind and/or correct these loses of network connection ?
Thanks in advance, i've already open a case but no news ...
If someone can help i can share "show module" result or whatever can help.
10-27-2013 01:17 PM
Do you happen to see DOWN ports in
show interface brief
and in vCenter regarding vmnic's?
10-27-2013 03:19 PM
Hi Peter,
Thanks for the question,
Right now no down ports for each incident
About vmnic's too ... what is very strange that's the issue (3 times right now) appears on one ESXi (and only one at a time) and crash network communication on 15, 20 vm (vm with e1000, vmxnet3, vmxnet2) each time.
11-04-2013 03:03 PM
What does vemlog show command show when VEM is disconnected?
11-12-2013 08:24 PM
You mentioned that if you migrate the VMs to another host that this fixes the issue. What happens when you immediately migrate the guest back to the original host? Does the failure remain?
11-07-2013 03:42 AM
Hello,
I've a similar issue. The VMK on ESX is in DHCP or fixed?
Regards,
Valentino
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide