implicit-commit

MPLS allows the user to modify the configurable parameters for RSVP LSPs while the LSP is operational.

Syntax

implicit-commit { all | lsp-reoptimize-timer }

no implicit-commit

Command Default

The is no implicit commit, by default.

Parameters

all: Enables an implicit commit for all triggers.
lsp-reoptimize-timer: Enables an implicit commit for reoptimizations.

Modes

MPLS policy configuration mode (config-router-mpls-policy)

Usage Guidelines

The no form of the command removes the implicit commit.

After modifying the parameters for an operational LSP, the user must execute the commit command to apply the changes. Applying these configuration changes requires a new instance of the LSP to be signaled with a modified or new set of parameters, also known as make-before-break. Once the new instance of the LSP is up, the old instance is removed.

By default, if the adaptive parameters of an LSP have changed, but the changes are not yet committed, any system-initiated make-before-break, such as an LSP re-optimization event, is ignored. To allow changes to be automatically applied, the user can use the implicit-commit lsp-reoptimize-timer command under the router MPLS policy command to enable certain types of events to trigger implicit commit.

MPLS is supported on the Extreme 8820, SLX 9740, SLX 9640, and SLX 9540 devices only.

Examples

The following example enable the LSP re-optimize timer to trigger an implicit commit.

device# configure
device(config)# router mpls
device(config-router-mpls)# policy
device(config-router-mpls-policy)# implicit-commit lsp-reoptimize-timer