Juniper IP SERVICES - CONFIGURATION GUIDE V 11.1.X Configuration Manual page 304

JUNOSe 11.1.x IP Services Configuration Guide
278
Monitoring Dynamic IP Tunnels
Use to display a summary of information about GRE tunnels.
Field descriptions
Administrative status
enabled Tunnel is available for use
disabled Tunnel is not available for use
Operational status
up Tunnel is operational
down Tunnel is not operational
not-present Tunnel is not operational, because the hardware (such as
a line module) supporting the tunnel is inaccessible
Example
host1#show gre tunnel summary
Administrative status
Operational status
See show gre tunnel.
enabled disabled
3 0
up down not-present
3 0 0