Users Guide

To restore the default refresh interval, use the no lsp-refresh-interval
command.
Parameters
seconds The LSP refresh interval, in seconds. This value must be 300
seconds less than the value specified in the max-lsp-lifetime
command. The range is from 1 to 65535 seconds. The default is
900.
Defaults 900 seconds
Command Modes ROUTER ISIS
Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.5(0.1) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.11.1 Introduced on the Z9000.
7.5.1.0 Added support for LSP Throttling Enhancement.
Usage Information
The refresh interval determines the rate at which route topology information is
transmitted preventing the information from becoming obsolete.
The refresh interval must be less than the LSP lifetime specified with the max-lsp-
lifetime command. A low value reduces the amount of time that undetected link
state database corruption can persist at the cost of increased link utilization. A higher
value reduces the link utilization the flooding of refreshed packets causes.
Related
Commands
• max-lsp-lifetime — set the maximum interval that LSPs persist without being
refreshed.
Intermediate System to Intermediate System (IS-IS) 1148