Verifying and Troubleshooting MPLS Connectivity

In IP networks, you can use the ping and traceroute commands to verify network connectivity and find broken links or loops. In an MPLS-enabled network, you can use the mpls ping and trace mpls commands to detect plane failures in different types of MPLS applications and network topologies.

Tasks to verify and troubleshoot connectivity in IP and MPLS-enabled networks are:

Sending an MPLS Echo Request Packet to an IP or IPv6 Address

To send an MPLS echo request packet to the specified IP or IPv6 address:

Tracing the Path of an MPLS Echo Request Packet to an IP or IPv6 Address

To send MPLS echo request packets to discover and examine the path MPLS packets follow to the specified IP or IPv6 address:

Sending an MPLS Echo Request Packet to a Martini Circuit

To send an MPLS echo request packet to the specified layer 2 cross-connect virtual (Martini) circuit:

Tracing the Path of an MPLS Echo Request Packet to a Martini Circuit

To send MPLS echo request packets to discover and examine the path MPLS packets follow to the specified layer 2 cross-connect virtual (Martini pseudowire) circuit:

Sending an MPLS Echo Request Packet to an L3VPN IP or IPv6 Prefix

To send an MPLS echo request packet to the specified L3VPN IP or IPv6 prefix:

Tracing the Path of an MPLS Echo Request Packet to an L3VPN IP or IPv6 Prefix

To send MPLS echo request packets to discover and examine the path MPLS packets follow to the L3VPN IP or IPv6 prefix:

Sending an MPLS Echo Request Packet to an RSVP-TE Tunnel

To send an MPLS echo request packet to the specified RSVP-TE tunnel:

Tracing the Path of an MPLS Echo Request Packet to an RSVP-TE Tunnel

To send MPLS echo request packets to discover and examine the path MPLS packets follow to the specified RSVP-TE tunnel:

Sending an MPLS Echo Request Packet to a VPLS Instance

To send an MPLS echo request packet to the specified VPLS instance:

Tracing the Path of an MPLS Echo Request Packet to a VPLS Instance

To send MPLS echo request packets to discover and examine the path MPLS packets follow to the specified VPLS instance: