Reference Guide

Intermediate System to Intermediate System | 507
FTOS displays debug messages on the console. Use the show debugging command in EXEC Privilege
mode to view which debugging commands are enabled.
Enter the keyword no followed by the debug command to disable a specific debug command. For example,
to disable debugging of IS-IS updates, enter
no debug isis updates-packets.
Enter
no debug isis to disable all IS-IS debugging.
Enter
undebug all to disable all debugging.
IS-IS Metric Styles
The following sections provide additional information on IS-IS Metric Styles.
• IS-IS Metric Styles on page 507
• Configure Metric Values on page 507
FTOS 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
The following topics are covered in this section:
• Maximum Values in the Routing Table on page 508
• Changing the IS-IS Metric Style in One Level Only on page 508
• Leaking from One Level to Another on page 510
debug isis update-packets [interface] EXEC Privilege View sent and received LSPs.
To view specific information, enter one of the
following optional parameters:
• interface: Enter the type of interface and slot/port
information to view IS-IS information on that
interface only.
Command Syntax Command Mode Purpose