Command Reference Guide

Intermediate System to Intermediate System (IS-IS) | 889
max-lsp-lifetime
e
Set the maximum time that link-state packets (LSPs) exist without being refreshed.
Syntax
max-lsp-lifetime seconds
To restore the default time, enter no max-lsp-lifetime.
Parameters
Defaults
1200 seconds
Command Modes
ROUTER ISIS
Command
History
Usage
Information
Change the maximum LSP lifetime with this command. The maximum LSP lifetime must always be
greater than the LSP refresh interval.
The seconds parameter enables the router to keep LSPs for the specified length of time. If the value is
higher, the overhead is reduced on slower-speed links.
Related
Commands
maximum-paths
e
Allows you to configure the maximum number of equal cost paths allowed in a routing table.
Syntax
maximum-paths number
To return to the default values, enter no maximum-paths.
Parameters
Defaults
4
Command Mode
ROUTER ISIS (for IPv4)
CONFIGURATION-ROUTER-ISIS-ADDRESS-FAMILY-IPV6 (for IPv6)
Command
History
seconds
The maximum lifetime of LSP in seconds. This value must be greater than the
lsp-refresh-interval. The higher the value the longer the LSPs are kept.
Range: 1 to 65535
Default: 1200
Version 8.3.12.0 Introduced on S4810
lsp-refresh-interval Use this command to set the link-state packet (LSP) refresh interval.
number
Enter a number as the maximum number of parallel paths an IP routing installs in a
routing table.
Range: 1 to 16.
Default: 4
Version 8.3.12.0 Introduced on S4810