для Cisco Cisco IOS Software Release 12.2(27)SBC

 lists the release history for this feature.

Not all commands may be available in your Cisco IOS software release. For release information about a 
specific command, see the command reference documentation.

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 lists only the Cisco IOS software release that introduced support for a given feature in a given 

Cisco IOS software release. Unless noted otherwise, subsequent releases of that Cisco IOS software 
release also support that feature.

MPLS EM—MPLS LSP Multipath Tree 
Trace

12.2(31)SB2
12.2(33)SRB

The MPLS EM—MPLS LSP Multipath Tree Trace feature 
provides the means to discover all the possible paths of a 
label switched path (LSP) between an egress and ingress 
router. Once discovered, these paths can be retested on a 
periodic basis using Multiprotocol Label Switching 
(MPLS) LSP ping or traceroute. This feature is an extension 
to the MPLS LSP traceroute functionality for the tracing of 
IPv4 LSPs. 

Cisco IOS MPLS Embedded Management (EM) is a set of 
standards and value-added services that facilitate the 
deployment, operation, administration, and management of 
MPLS-based networks in line with the fault, configuration, 
accounting, performance, and security (FCAPS) model.

In Cisco IOS Release 12.2(31)SB2, this feature was 
introduced.

In Cisco IOS Release 12.2(33)SRB, support was added for 
a Cisco IOS 12.2SR release.

The following sections provide information about this 
feature: