Configuration Guide User guide

FastIron Configuration Guide 1061
53-1002494-02
IPv4 point-to-point GRE tunnels
The show ip tunnel traffic command displays the link status of the tunnel and the number of
keepalive packets received and sent on the tunnel.
Brocade# show ip tunnel traffic
IP GRE Tunnels
Tunnel Status Packet Received Packet Sent KA recv KA sent
1 up/up 362 0 362 362
3 up/up 0 0 0 0
10 down/down 0 0 0 0
Syntax: show ip tunnel traffic
The show statistics tunnel [<tunnel-ID>] command displays GRE tunnel statistics for a specific
tunnel ID number. The following shows an example output for tunnel ID 1.
Syntax: show statistics tunnel [<tunnel-ID>]
The <tunnel-ID> variable specifies the tunnel ID number.
This display shows the following information.
Tunnel loopback The tunnel loopback port for the tunnel (if applicable).
Port name The port name (if applicable).
Internet address The internet address.
MTU The maximum transmission unit.
encapsulation GRE GRE encapsulation is enabled on the port.
Keepalive Indicates whether or not GRE link keepalive is enabled.
Interval If GRE link keepalive is enabled, this field displays the number of seconds
between each initiation of a GRE link keepalive message.
No. of Retries If GRE link keepalive is enabled, this field displays the number of times that a
GRE link keepalive packet is sent before the tunnel is placed in the DOWN
state.
Total Keepalive Pkts If GRE link keepalive is enabled, this field shows the total number of GRE link
keepalive packets transmitted (TX) and received (RX) on the tunnel since it was
last cleared by the administrator.
Path MTU Discovery Indicates whether or not PMTUD is enabled. If PMTUD is enabled, the MTU
value is also displayed.
TABLE 180 CLI display of show interface tunnel command (Continued)
Field Definition
Brocade(config-tnif-10)#show statistics tunnel 1
IP GRE Tunnels
Tunnel Status Packet Received Packet Sent KA recv KA sent
1 up/up 87120 43943 43208 43855