Reference Guide

wait time specified (interval seconds). After the network calms down and there
are no triggers for two times the maximum interval, fast behavior is restored (the
initial wait time).
lsp-mtu
Set the maximum transmission unit (MTU) of IS-IS link-state packets (LSPs). This command only limits the
size of LSPs generated by this router.
S5000
Syntax
lsp-mtu size
To return to the default values, use the no lsp-mtu command.
Parameters
size The maximum LSP size, in bytes. The range is 128 to 1497 for
Non-Jumbo mode and 128 to 9195 for Jumbo mode. The
default is 1497.
Defaults 1497 bytes.
Command
Modes
ROUTER ISIS
Command
History
Version 9.0(1.3) Introduced on the S5000.
Usage
Information
The link MTU and the LSP MTU size must be the same.
Because each device can generate a maximum of 255 LSPs, consider carefully
whether you should configure the lsp-mtu command.
lsp-refresh-interval
Set the link state PDU (LSP) refresh interval. LSPs must be refreshed before they expire. When the LSPs are
not refreshed after a refresh interval, they are kept in a database until their max-lsp-lifetime reaches
zero and then LSPs is purged.
S5000
Syntax
lsp-refresh-interval seconds
To restore the default refresh interval, use the no lsp-refresh-interval
command.
Parameters
seconds The LSP refresh interval, in seconds. This value has to be less
than the seconds value specified with the max-lsp-
836
Intermediate System to Intermediate System (IS-IS)