Deployment Guide

initial_wait_interval
seconds
(OPTIONAL) Enter the initial wait time, in seconds, before running the rst LSP
generation. The range is from 0 to 120 seconds. The default is 1 second.
second_wait_interv
al seconds
(OPTIONAL) Enter the wait interval, in seconds, between the rst and second LSP
generation. The range is from 0 to 120 seconds. The default is 5 seconds.
Defaults Refer to Parameters.
Command Modes ROUTER ISIS
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
LSP throttling slows down the frequency at which LSPs are generated during network instability. Even though
throttling LSP generations slows down network convergence, no throttling can result in a network not functioning
as expected. If network topology is unstable, throttling slows down the scheduling of LSP generations until the
topology regains its stability.
The rst generation is controlled by the initial wait interval and the second generation is controlled by the second
wait interval. Each subsequent wait interval is twice as long as the previous one until the wait interval reaches the
maximum wait time specied (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 this router
generates.
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 from 128 to 1497 for Non-Jumbo mode and
from 128 to 9195 for Jumbo mode. The default is 1497.
Defaults 1497 bytes.
Command Modes ROUTER ISIS
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
The link MTU and the LSP MTU size must be the same.
782 Intermediate System to Intermediate System (IS-IS)