Displays layer 2 Generic Routing Encapsulation (GRE) tunnel traffic flow information

GRE is one of the available tunneling mechanisms which uses IP as the transport protocol and can be used for carrying many different passenger protocols. The tunnels behave as virtual point-to-point links that have two endpoints identified by the tunnel source and tunnel destination addresses at each endpoint.

Supported in the following platforms:

  • Access Points — AP505i, AP510i/e, AP560i/h
  • Service Platforms — NX5500, NX7500, NX9500, NX9600, VX9000


show gre info {detail} {(on <DEVICE-NAME>)}


show gre info {detail} {(on <DEVICE-NAME>)}
gre info Displays GRE tunnel related information and stats.
detail Optional. Displays GRE tunnel information in detail, such as tunnel state, tunnel‘s remote-end peer device‘s IP address, session ID of an operational tunnel, total number of packets received and transmitted through the tunnel, and the number of dropped packets during tunneled exchanges between access point and a peer at the remote end of the tunnel.
on <DEVICE-NAME> Optional. Executes the command on a specified device
  • <DEVICE-NAME> – Specify the name of the access point, controller, or service platform.


nx9500-6C8809#show gre info
Gre Tunnel info:
 Tunnel info not found