896 BigIron RX Series Configuration Guide
53-1002253-01
Displaying IPv4 IS-IS information
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Displaying route information
To display the routes in the device’s IS-IS route table, use either of the following methods.
To display information about the routes in the device’s IS-IS route table, enter the following
command at any level of the CLI.
Syntax: show isis routes [ip-address <subnet-mask> | ip-address/prefix]
You may enter ip-address <subnet-mask> or ip-address/prefix if you want information for a specific
route.
For example:
This display shows the following information.
Bad LSP The number of times the interface received a bad LSP from an IS at the
other end of the circuit. The following conditions can cause an LSP to be
bad:
• Invalid checksum
• Invalid length
• Invalid lifetime value
Control Messages Sent The number of IS-IS control PDUs sent on this interface.
Control Messages Received The number of IS-IS control PDUs received on this interface.
IP Enabled If set to TRUE, the IP protocol is enabled for this circuit.
TABLE 138 IS-IS route information
This field... Displays...
Total number of IS-IS routes The total number of routes in the device’s IS-IS route table. The total
includes Level-1 and Level-2 routes.
Destination The IP destination of the route.
Mask The subnet mask for the destination address.
TABLE 137 IS-IS Interface information (Continued)
This field... Displays...
BigIron RX# show isis routes
Total number of IS-IS routes: 173
Destination Mask Cost Type Tag Flags
1.0.0.0 255.255.255.0 21 L2 00000000 00000242
Path: 1 Next Hop IP: 4.1.1.1 Interface: 7/1
1.0.0.0 255.255.255.255 30 L2 00000000 00000242
Path: 1 Next Hop IP: 4.1.1.1 Interface: 7/1
1.0.0.1 255.255.255.255 30 L2 00000000 00000242
Path: 1 Next Hop IP: 4.1.1.1 Interface: 7/1
1.0.10.0 255.255.255.0 30 L2 00000000 00000242
Path: 1 Next Hop IP: 4.1.1.1 Interface: 7/1
BigIron RX# show isis routes 1.0.111.0 255.255.255.0
1.0.111.0 255.255.255.0 21 L2 00000000 00000242
Path: 1 Next Hop IP: 4.1.1.1 Interface: 7/1
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