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Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 3 Configuring Remote Access to MPLS VPN
Monitoring and Maintaining the MPLS VPN
10.0.0.0/8
in label:17
10.18.0.0/8
out label:16
172.16.1.0/30
in label:imp-null
out label:imp-nulllsr: 192.168.1.1:0
out label:20lsr: 172.16.1.18:0
172.16.1.16/30
in label:imp-null
out label:16lsr: 192.168.1.1:0
out label:imp-nulllsr: 172.16.1.18:0
Verifying Labels Are Set
To verify that the labels are set, enter the following command in privileged EXEC mode:
Example 3-21 traceroute Command
Router# traceroute 10.10.10.4
Type escape sequence to abort.
Tracing the route to 10.10.10.4
1 10.1.1.21 [MPLS: Label 25 Exp 0] 296 msec 256 msec 244 msec
2 10.1.1.5 [MPLS: Label 22 Exp 0] 212 msec 392 msec 352 msec
3 10.1.1.14 436 msec * 268 msec
Monitoring and Maintaining the MPLS VPN
To monitor and maintain an MPLS VPN configuration, perform the following verification tasks:
• Verifying VRF Configurations, page 3-44
• Verifying the Routing Table, page 3-44
• Verifying the PE to PE Routing Protocols, page 3-45
• Verifying the PE to CE Routing Protocol, page 3-46
• Verifying the MPLS VPN Labels, page 3-46
• Testing the VRF, page 3-46
Note Before you establish an MPLS VPN, verify the connections between PE routers by using the
ping command.
Command Purpose
Router# traceroute address
Displays the route to the specified address and the labels set for the
interfaces.