topic Re: The virtual machine on the NSX Logical switch can not communicate in VMware NSX Discussions

The virtual machine on the NSX Logical switch can not communicate

hcxypku1985 — Thu, 17 Mar 2016 11:56:26 GMT

Hi all:

My logical switch has been created and two virtual machines have been added, virtual machine network are also connected to the corresponding distributed port group, but the two virtual machine Ping unreasonable. Two virtual machines can resolve their MAC, the firewall is closed at both ends .Who can tell me why.

thanks a lot

Re: The virtual machine on the NSX Logical switch can not communicate

prangi — Thu, 17 Mar 2016 14:03:18 GMT

Faced the similar issue in my test environment. If possible try rebooting NSX Controller one by one. Hope that fix the issue.

Re: The virtual machine on the NSX Logical switch can not communicate

showard1 — Thu, 17 Mar 2016 17:48:41 GMT

Couple of things:

1. Try running a traceflow between the vnics of the two VMs involved. This should show you where the breakdown is happening. It might be a DFW rule or VTEP can't talk for some reason.

2. Its possible that the netcpa service is hung on the host. This is the process that talks to the controllers. SSH to the hosts involved and issue the following command:

/etc/init.d/netcpad restart

Re: The virtual machine on the NSX Logical switch can not communicate

hcxypku1985 — Fri, 18 Mar 2016 01:24:24 GMT

Thanks.This method is certainly like to restart I already tried it.

Re: The virtual machine on the NSX Logical switch can not communicate

hcxypku1985 — Fri, 18 Mar 2016 04:03:22 GMT

Thank you very much.The cause of the problem is than VTEP can't talk.