Protocol-Independent Routing Monitoring
and Troubleshooting

Table 17 summarizes the command-line interface (CLI) commands you can use to monitor and troubleshoot protocol-independent routing properties. In the table, the commands are grouped by functionality. In the remainder of this chapter, they are explained alphabetically.

In Table 17, the variants of the show route commands listed in the category "Routing Table Information" are all filters that select the specific information that is displayed from the routing tables. The other show route commands (specifically, show route forwarding-table and show route martians) are independent commands and cannot be used in conjunction with any of the filter options.

Table 17: Commands for Monitoring Protocol-Independent Routing Properties

Task Category	Task or Information to Monitor	Command
Routing Table Information	Information about the entries in the routing tables.	show route
	Routes transmitted by a particular routing protocol.	show route advertising-protocol
	Routes containing a specified AS path.	show route aspath-regex
	Best route to the specified address or range of addresses.	show route best
	Routes containing members of a specified BGP community.	show route community
	Routes that have been damped.	show route damping
	Routes that exactly match the specified address or range of addresses.	show route exact
	Display list of instances or routing tables that are importers or exporters of routes.	show route export
	Display target communities for which auto-export is currently distributing routes.	show route export vrf-target
	Routes that are currently inactive.	show route inactive
	Routing instance information.	show route instance
	Routes that form a label-switched path.	show route label-switched-path
	Routes that contain the specified next hop.	show route next-hop
	Routes exiting the router through the specified interface.	show route output
	Routes learned by the specified protocol.	show route protocol
	Routes in a range of destination prefixes.	show route range
	Routes received by a particular routing protocol.	show route receive-protocol
	Entries in the next-hop resolution database.	show route resolution
	Routes learned from the specified source.	show route source-gateway
	Statistics about the routes in all routing tables.	show route summary
	Routes in a particular routing table.	show route table
	High-level summary of routing table information.	show route terse
Forwarding Table Information	Information about the entries in the kernel's forwarding table.	show route forwarding-table
	Clear a route entry from the kernel's forwarding table.	clear route forwarding-table
Martian Information	Information about martian addresses.	show route martians
AS Paths	Known AS paths.	show as-path