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.
show gre concentrator {on <DEVICE-NAME>}
show gre concentrator-tunnels {on <DEVICE-NAME>}
show gre info {detail} {(on <DEVICE-NAME>)}
show gre concentrator {on <DEVICE-NAME>}
show gre concentrator-tunnels {on <DEVICE-NAME>}
show gre info {detail} {(on <DEVICE-NAME>)}
|
gre concentrator gre concentrator-tunnels |
Displays GRE concentrator tunnel connection details for the specified
device. Note: Available
only on controllers.
|
| 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
|
vx9000-AA3AED#show gre concentrator-tunnels GRE Concentrator Tunnel info: Tunnel Tunnel-ID Peer-IP Local-IP VLAN --------------------------------------------------------------------- 1 aea331baea3312 10.234.51.27 10.234.51.18 97
nx9500-6C8809#show gre info Gre Tunnel info: Tunnel info not found nx9500-6C8809#