Administrator Guide
To disable a specic 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.
• Conguring the IS-IS Metric Style
• Congure Metric Values
Dell Networking OS 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)
Congure 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.
Metric Style
Correct Value Range for the isis metric Command
wide 0 to 16777215
narrow 0 to 63
wide transition 0 to 16777215
narrow transition 0 to 63
transition 0 to 63
Maximum Values in the Routing Table
IS-IS metric styles support dierent cost ranges for the route. The cost range for the narrow metric style is 0 to 1023, while all other metric
styles support a range of 0 to 0xFE000000.
Change the IS-IS Metric Style in One Level Only
By default, the IS-IS metric style is narrow. When you change from one IS-IS metric style to another, the IS-IS metric value (congured
with the isis metric command) could be aected.
In the following scenarios, the IS-type is either Level-1 or Level-2 or Level-1-2 and the metric style changes.
Intermediate System to Intermediate System
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