max-lsp-lifetime

Sets the maximum number of seconds an unrefreshed Link State PDU (LSP) remains in the LSP database of a device.

Syntax

max-lsp-lifetime secs

Command Default

The default maximum lifetime is 1200 seconds (20 minutes).

Parameters

secs: Specifies the maximum lifetime in seconds. Valid values range from 1 through 65535 seconds. The default is 1200 seconds.

Modes

IS-IS router configuration mode

Usage Guidelines

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

The max-lsp-lifetime and lsp-refresh-interval commands must be configured in such a way that the LSPs are refreshed before the maximum LSP lifetime is reached. Otherwise, the device's originated LSPs may be timed out by neighbors of the device.

The no form of the command removes the configured period of time.

Examples

The following example changes the maximum LSP lifetime to 2400 seconds.

device# configure terminal
device(config)# router isis
device(config-isis-router)# max-lsp-lifetime 2400