Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 - Manual (Page 127)

Brocade ICX 6650 Layer 3 Routing Configuration Guide 109
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IPv4 point-to-point GRE tunnels
ip arp-age: 10 minutes
No Helper Addresses are configured
No inbound ip access-list is set
No outgoing ip access-list is set
Syntax: show ip interface tunnel [tunnel-ID]
The tunnel-ID variable is a valid tunnel number or name.
The show interface tunnel command displays the GRE tunnel configuration.
Brocade# show int tunnel 3
Tunnel3 is up, line protocol is up
Hardware is Tunnel
Tunnel source 192.168.1.1
Tunnel destination is 192.168.2.3
Port name is customer1001
Internet address is 10.34.3.2/24, MTU 1476 bytes, encapsulation GRE
Keepalive is Enabled : Interval 10, No.of Retries 3
Total Keepalive Pkts Tx: 2, Rx: 2
Path MTU Discovery: Enabled, MTU is 1476 bytes
Syntax: show interface tunnel [tunnel-ID]
This display shows the following information.
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.
TABLE 14 CLI display of show interface tunnel command
Field Definition
Hardware is Tunnel The interface is a tunnel interface.
Tunnel source The source address for the tunnel.
Tunnel destination The destination address for the tunnel.
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.