Skip to main content
Sign Out

Welcome to Dell

My Account
  • Place orders quickly and easily
  • View orders and track your shipping status
  • Create and access a list of your products
  • Manage your Dell EMC sites, products, and product-level contacts using Company Administration.
Sign In Create an Account Premier Sign In Partner Program Sign In
Contact Us

Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

PDF

Debugging IS-IS

To debug IS-IS processes, use the following commands.

  • View all IS-IS information.
    EXEC Privilege mode
    debug isis
  • View information on all adjacency-related activity (for example, hello packets that are sent and received).
    EXEC Privilege mode
    debug isis adj-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.

  • View information about IS-IS local update packets.
    EXEC Privilege mode
    debug isis local-updates [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.

  • View IS-IS SNP packets, include CSNPs and PSNPs.
    EXEC Privilege mode
    debug isis snp-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.

  • 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.

Dell EMC Networking OS 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.

Rate this content

Accurate
Useful
Easy to understand
Was this article helpful?
0/3000 characters
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please select whether the article was helpful or not.
  Comments cannot contain these special characters: <>()\