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•
interface: Enter the type of interface and slot/port information to view IS-IS information on that
interface only.
•
View the events that triggered IS-IS shortest path first (SPF) events for debugging purposes.
EXEC Privilege mode
debug isis spf-triggers
•
View sent and received LSPs.
EXEC Privilege mode
debug isis update-packets [interface]
To view specific information, enter the following optional parameter:
•
interface: Enter the type of interface and slot/port information to view IS-IS information on that
interface only.
The system displays debug messages on the console. To view which debugging commands are enabled, use
the show debugging command in EXEC Privilege mode.
To disable a specific debug command, enter the keyword no then the debug command. For example, to
disable debugging of IS-IS updates, use the no debug isis updates-packets command.
To disable all IS-IS debugging, use the no debug isis command.
To disable all debugging, use the undebug all command.
IS-IS Metric Styles
The following sections provide additional information about the IS-IS metric styles.
•
Configuring the IS-IS Metric Style
•
Configure Metric Values
Dell supports the following IS-IS metric styles:
•
narrow (supports only type, length, and value [TLV] up to 63)
•
wide (supports TLV up to 16777215)
•
transition (supports both narrow and wide and uses a TLV up to 63)
•
narrow transition (accepts both narrow and wide and sends only narrow or old-style TLV)
•
wide transition (accepts both narrow and wide and sends only wide or new-style TLV)
Configure Metric Values
For any level (Level-1, Level-2, or Level-1-2), the value range possible in the isis metric command in
INTERFACE mode changes depending on the metric style.
The following describes the correct value range for the isis metric command.
Intermediate System to Intermediate System
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Troubleshooting
