Layer 2 Circuit, Layer 2 VPN, and VPLS Operational Mode Commands

Table 53 summarizes the command-line interface (CLI) commands you can use to monitor Layer 2 circuits, Layer 2 virtual private networks (VPNs), and virtual private LAN service (VPLS) instances. In the table, the commands are grouped by functionality. In the remainder of this chapter, they are explained alphabetically.

Some of the routing table and protocol-related commands, such as show bgp neighbor, have been condensed and grouped to specifically address Layer 2 circuits, Layer 2 VPNs, and VPLS, with references to the complete command elsewhere in this book.

Table 53: Commands for Monitoring Layer 2 VPNs

Task Category	Task or Information to Monitor	Command
BGP Information	Entries in the BGP neighbor database.	show bgp neighbor
	BGP summary information.	show bgp summary
Interface Information	General interface information.	show interfaces terse
Layer 2 Circuit Connections	Display Layer 2 circuit information.	show l2circuit connections
Layer 2 VPN Connections	Display Layer 2 VPN information.	show l2vpn connections
VPLS Connections	Display virtual private LAN service (VPLS) information.	show vpls connections
	Display VPLS statistics	show vpls statistics
	Clear MAC address entries from the VPLS table.	clear vpls mac-address instance
Routing Table Information	Information about the entries in the routing tables.	show route
	Routes transmitted by a particular routing protocol.	show route advertising-protocol
	Information about the entries in the kernel's forwarding table.	show route forwarding-table
	Route instance information.	show route instance
	Routes learned by the specified protocol.	show route protocol
	Routes received by a particular routing protocol.	show route receive-protocol
	Routes in a particular routing table.	show route table
System Management	Check the integrity of a VPN connection between two provider edge (PE) routers.	ping mpls l2vpn
	Check the reachability of a remote VPN node.	ping vpn-interface