Hello Everyone!
I've faced with issue that Overlay tunnel is down in Nested ESXi lab.
My infrastructure:
NSX Manager 2.5.1
2 Nested ESXi hosts. Each hosts have 2 Network adapter: management and overlay.
ESXi hosts hardware:
Management network has internet access and connects with NSX Manager and hosts. Overlay network is isolated and has connection only with hosts.
N-VDS assigned to overlay network.
(vm hardware and physical adapters look the same for both hosts)
I set IP pool for overlay network
So while I connect VM (that resides on Nested ESXi) to Logical Switch I got
and obviously traffic doesn't go.
Any idea what the problem is?
Thanks in advance!
For nested environments you need two things:
1) Increase the parent host's VDS MTU;
2) Enable Promiscuous/Mac Address Changes/Forged Transmits on the DvPortGroup of the parent host used for TEP (nsx-overlay in your case)
Have you done this already?
For nested environments you need two things:
1) Increase the parent host's VDS MTU;
2) Enable Promiscuous/Mac Address Changes/Forged Transmits on the DvPortGroup of the parent host used for TEP (nsx-overlay in your case)
Have you done this already?
Thanks a lot, you saved my time!!!
For additional, all this change are performing in parent host's configuration tab (if you use vCenter):
Promiscous mode is not really required and a bad thing from the performance point of view.
William Lam wrote a great post about enabling MAC learning on a VDS (vSphere 6.7), including two powercli functions to query and set the configuration: