Verify that ESXi hosts can ping each other VTEP interfaces using the vmkping command.

About this task

Ensures hosts VTEPs can communicate with each other using jumbo frames and that vxlan is functioning.

Expected Outcome

The vmkping command between the two VTEP interfaces is successful.

Procedure

  1. Log in to vCenter Server by using the vSphere Web Client.
    1. Open a Web browser and go to https://sfo01m01vc01.sfo01.rainpole.local/vsphere-client.
    2. Log in using the following credentials.

      Setting

      Value

      User name

      administrator@vsphere.local

      Password

      vsphere_admin_password

  2. From the Home menu, select Networking & Security.
  3. Click Installation and Upgrade, and click the Logical Network Preparation tab.
  4. Select 172.16.11.65 from the NSX Manager drop-down menu.
  5. Click the VXLAN Transport tab and expand the sfo01-m01-mgmt01 cluster.
  6. Under VMKNic IP Addressing, note the vmk4 IP address of sfo01m01esx01.sfo01.rainpole.local and sfo01m01esx04.sfo01.rainpole.local.
  7. Verify that the hosts can ping each other VTEPs.
    1. Open an SSH connection to the sfo01m01esx01.sfo01.rainpole.local host.
    2. Log in using the following credentials.

      Setting

      Value

      User name

      root

      Password

      esxi_root_user_password

    3. Run the following command.

      Region of the ESXi Host

      Command

      Region A

      vmkping -I vmk4 -S vxlan -s 8800 -d 172.16.14.210

      Note:

      In the syntax vmkping -I VTEP-VMK -S vxlan -s 8800 -d Remote-VTEP-IP, the 172.16.14.210 address is the remote VTEP IP address of sfo01m01esx04.sfo01.rainpole.local.

    4. Repeat the procedure on the sfo01m01esx04.sfo01.rainpole.local host with destination IP as the VTEP address of sfo01m01esx01.sfo01.rainpole.local.
    5. Repeat the procedure for other ESXi hosts from different vCenter servers.

What to do next

If you encounter issues while performing this procedure, use the following troubleshooting tips:

Troubleshooting Tips

  • Ensure that VTEPs have a valid IP address.

  • Ensure that jumbo frame setting is enabled on switch ports and SVIs.