2V0-11.25 · Question #67
An administrator logged into NSX Manager to view host details. The administrator noticed that the "Tunnel" status for the ESXi hosts, in the VI workload domain, is showing down. What is a possible…
The correct answer is B. The MTU setting for the host TEPs has been set to 1500. The "Tunnel" status in NSX indicates the status of the VXLAN tunnels used for communication between ESXi hosts. If the MTU setting for the host Tunnel Endpoint (TEP) is incorrectly set to 1500, this can cause issues with VXLAN encapsulation, as VXLAN packets typically require…
Question
An administrator logged into NSX Manager to view host details. The administrator noticed that the "Tunnel" status for the ESXi hosts, in the VI workload domain, is showing down. What is a possible reason the ESXi host tunnels are showing down in NSX?
Options
- AThe IGMP has been disabled on the network.
- BThe MTU setting for the host TEPs has been set to 1500.
- CThe host TEP IP addresses are being dynamically assigned through DHCP instead of being
- DThe overlay traffic is being blocked by the gateway firewall.
How the community answered
(34 responses)- A15% (5)
- B74% (25)
- C3% (1)
- D9% (3)
Explanation
The "Tunnel" status in NSX indicates the status of the VXLAN tunnels used for communication between ESXi hosts. If the MTU setting for the host Tunnel Endpoint (TEP) is incorrectly set to 1500, this can cause issues with VXLAN encapsulation, as VXLAN packets typically require an MTU of at least 1600 bytes to function correctly. Setting the MTU too low can cause packet drops and result in the tunnel status being down.
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