By monitoring the cross-connect entries and the associated incoming and outgoing segments, you can
see which labels are installed and how they are being swapped. Use the MPLS-LSR-STD-MIB in place
of the show mpls forwarding command-line interface (CLI) command.

LSR Traffic Load Monitoring

By monitoring interface and packet operations on an MPLS LSR, you can identify high- and low-traffic
patterns, and traffic distributions.

Improvement of Network Performance

By identifying potentially high-traffic areas, you can set up load sharing to improve network
performance.

Verification of LSR Configuration

By comparing results from SNMP get commands and the show mpls forwarding CLI command, you
can verify your LSR configuration.

Active Label Switched Paths Monitoring

By monitoring the cross-connect entries and the associated incoming segments and outgoing segments,
you can determine the active LSPs.

Label Switching Information Managed by the MPLS-LSR-STD-MIB

The MPLS-LSR-STD-MIB contains managed objects that support the retrieval of label switching
information from a router. The MIB is based on RFC 3813. This implementation enables a network
administrator to get information on the status, character, and performance of the following:

•

MPLS-capable interfaces on the LSR

•

Incoming MPLS segments (labels) at an LSR and their associated parameters

•

Outgoing segments (labels) at an LSR and their associated parameters

In addition, the network administrator can retrieve the status of cross-connect table entries that associate
MPLS segments with each other.

Figure 1

shows the association of the cross-connect table with incoming and outgoing segments (labels).