The show statistics tunnel command displays GRE tunnel statistics for a specic tunnel ID number. The following shows an example
output for tunnel ID 1.
device(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
RFC 2784 supports GRE tunnel ports. The show statistics tunnel command output now includes information from the hardware
counters for each tunnel. For example:
IP GRE Tunnel 1 HW Counters:
InOctets 0 OutOctets 0
InPkts 0 OutPkts 0
NOTE
This CLI enhancement is supported only on FCX devices.
Syntax: show statistics tunnel [ tunnel-ID ]
The tunnel-ID variable species the tunnel ID number.
TABLE 18 show ip tunnel
trac output descriptions
Field Description
Tunnel Status Indicates whether the tunnel is up or down. Possible values are:
• Up/Up - The tunnel and line protocol are up.
• Up/Down - The tunnel is up and the line protocol is down.
• Down/Up - The tunnel is down and the line protocol is up.
• Down/Down - The tunnel and line protocol are down.
Packet Received The number of packets received on the tunnel since it was last cleared by
the administrator.
Packet Sent The number of packets sent on the tunnel since it was last cleared by the
administrator.
KA recv The number of keepalive packets received on the tunnel since it was last
cleared by the administrator.
KA sent The number of keepalive packets sent on the tunnel since it was last
cleared by the administrator.
Displaying multicast protocols and GRE tunneling information
The following show commands display information about multicast protocols and GRE tunnels:
• show ip pim interface
• show ip pim nbr
• show ip pim mcache
• show ip pim
ow
• show statistics
• show ip mtu
NOTE
All other show commands that are supported currently for Ethernet, VE, and IP loopback interfaces, are also supported for
tunnel interfaces. To display information for a tunnel interface, specify the tunnel in the format tn num . For example, show
interface tn 1. In some cases, the Ethernet port that the tunnel is using will be displayed in the format tnnum:eport .
IPv4 point-to-point GRE tunnels
FastIron Ethernet Switch Layer 3 Routing
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