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Ignoring LSP Errors
ignore-lsp-errors
Logging Adjacency State Changes
log-adjacency-changes
Configuring LSP Parameters
Copyright © 2010, Juniper Networks, Inc.
You can configure the router to ignore rather than purge LSPs received with errors.
Use to enable your router to ignore rather than purge IS-IS LSPs that are received with
internal checksum errors.
Under normal conditions, the IS-IS protocol definition requires that received LSPs with
incorrect data link checksums are to be purged by the receiver. This causes the LSP
initiator to regenerate LSPs. If a network link causes data corruption while still delivering
LSPs with correct data link checksums, a continuous cycle of regenerating and purging
LSPs may result. This can render the network nonfunctional. Enabling this command
prevents this continuous cycle from occurring because LSPs are ignored rather than
purged.
Example
host1(config-router)#ignore-lsp-errors
Use the no version to disable the function.
See ignore-lsp-errors
You can configure the router to log messages that track when adjacencies change state
between up and down.
Use to generate log messages that track IS-IS adjacency state changes (up or down).
The default is not to log adjacency state changes.
Recommended for monitoring large networks.
The system logs messages by using the router error message facility.
Specify the minimum severity (0–7) or verbosity (low, medium, high) of this log
category's messages.
You can also use the system log command to generate the desired log messages.
Example
host1(config-router)#log-adjacency-changes severity 3 verbosity low
Use the no version to disable the function.
See log-adjacency-changes
You can specify the following parameters for LSPs:
Chapter 6: Configuring IS-IS
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