What is the Purpose of This Test

To check the active tunnel paths between local WAN links and each peer, and gateway status.

When Can You Run This Test

Whenever you face site-to-site communication issues or Gateway traffic issues, run this test to check if the tunnel is UP for destination.

For instructions on how to run a remote diagnostic test on Edges, see Run Remote Diagnostic Tests on Edges.

What to Check in the Test Output

Following is an example of the test output:

The Remote Diagnostics output displays the following information:
Field Description
WAN Link Specifies the WAN link IP used to form tunnel.
Local IP Specifies the Physical Interface IP for the WAN link.
Remote IP Specifies the Peer IP to which tunnel is formed.
State Specifies the tunnel state. The state can be any of the following:
  • Stable - Tunnel is up and stable.
  • Unstable - Tunnel is having packet loss, jitter, or latency. You can check the outputs to find what is the cause for the unstable tunnel.
  • BW_Measurement - In this state both peers negotiate tunnel between them.
  • Quiet - No traffic is seen across the tunnel.
Anything other than "Stable" state confirms that the issue with WAN link.
VPN Specifies the VPN state and it should be UP for good tunnel.
Bandwidth (tx/rx) Indicates the bandwidth of the tunnel.
Latency (tx/rx) Indicates the latency of the tunnel.
Jitter (tx/rx) Indicates the jitterness of the tunnel.
Loss (tx/rx) Indicates the packet loss of the tunnel.
Bytes (tx/rx) Indicates the bytes of the tunnel in MB.
Uptime Indicates the duration of tunnel uptime.
Mode Specifies the mode of the tunnel:
  • Static - Static tunnels are UP always.
  • Dynamic - Dynamic tunnels are usually seen for b2b tunnel and it will be formed on requirement basis.