tunnel establishment between Hosts and Edges

[brahimagha]

Hello,

We 're running an issue where some of host Transport nodes couldn't build a tunnel with Edge. whereas others could do this.

the communications using packet size 1572 is OK between all nodes.

the tunnel is UP between All host.

NSX-T version: 3.2.1.

[ssanthoshkum]

Hi,

       Check the following options

      i) Transport VLAN used for Transport node and Edges are the same or different VLAN. If its different VLAN ensure routing reachability is available for those VLAN.  

    ii) Ensure Overlay NVDS uplink profile is mapped with correct transport VLAN on edge nodes. 

   iii) Edge Node NIC is connected proper VDS port group which allows transport VLAN. 

  iv) Ensure MTU is same for both EDGE & ESXi Transport node for the Overlay. 

HTH Sandy

[Mortuza1]

You can try resync EDGE. Also, migrate EDGE VM to another host where a working EDGE VM exists and check.