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Configuring IP Routing Protocol-Independent Features
Monitoring and Maintaining the IP Network
IPC-378
Cisco IOS IP Configuration Guide
Use the show key chain EXEC command to display key chain information. For examples of key
management, see the “Key Management Examples” section at the end of this chapter.
Monitoring and Maintaining the IP Network
You can remove all contents of a particular cache, table, or database. You also can display specific
statistics. The following sections describe each of these tasks.
Clearing Routes from the IP Routing Table
You can remove all contents of a particular table. Clearing a table can become necessary when the
contents of the particular structure have become, or are suspected to be, invalid.
To clear one or more routes from the IP routing table, use the following command in EXEC mode:
Displaying System and Network Statistics
You can display specific statistics such as the contents of IP routing tables, caches, and databases.
Information provided can be used to determine resource utilization and solve network problems. You can
also display information about node reachability and discover the routing path packets leaving your
device are taking through the network.
To display various routing statistics, use the following commands in EXEC mode, as needed:
Step 4
Router(config-keychain-key)# accept-lifetime start-time
{infinite | end-time | duration seconds}]
Specifies the time period during which the key
can be received.
Step 5
Router(config-keychain-key)# send-lifetime start-time
{infinite | end-time | duration seconds}
Specifies the time period during which the key
can be sent.
Command Purpose
Command Purpose
Router# clear ip route {network [mask] | *}
Clears one or more routes from the IP routing table.
Command Purpose
Router# show ip cache policy
Displays the cache entries in the policy route cache.
Router# show ip local policy
Displays the local policy route map if one exists.
Router# show ip policy
Displays policy route maps.
Router# show ip protocols
Displays the parameters and current state of the active
routing protocol process.
Router# show ip route [address [mask] [longer-prefixes]]
| [protocol [process-id]]
Displays the current state of the routing table.
Router# show ip route summary
Displays the current state of the routing table in summary
form.
Router# show ip route supernets-only
Displays supernets.