GRE Tunnel
GRE (Generic Routing
Encapsulation) 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.
Use the GRE Tunnel screen to view information on the traffic flow in a GRE tunnel.
To view the GRE Tunnel statistics:
- Select the Statistics menu from the Web UI.
- Expand the System node
from the navigation pane (on the left-hand side of the screen). The System node
expands to display the RF Domains created within the managed network.
- Expand the RF
Domain node.
- Select a Wireless
Controller.
- Select GRE
Tunnels.
The screen displays in the right-hand pane.
This screen describes the following:
GRE State |
Displays the current operational state
of the GRE tunnel. |
Peer IP Address |
Displays the IP address of the peer
device on the remote end of the GRE tunnel. |
Tunnel ID |
Displays the session ID of an
established GRE tunnel. This ID is only viable while the tunnel is
operational and does not carry to subsequent sessions. |
Total Packets Received |
Displays the total number of packets
received from a peer at the remote end of the GRE tunnel. |
Total Packets Sent |
Displays the total number of packets
sent from this controller or service platform to a peer at the
remote end of the GRE tunnel. |
Total Packets Dropped |
Lists the number of packets dropped from
tunneled exchanges between this controller or service platform and
a peer at the remote end of the VPN tunnel |
|
- Select Clear to revert the screen counters to zero and begin
a new data collection.
- Select Refresh to update the screen‘s statistics counters to
their latest value.