Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?




Hierarchy Level


A useful tool for isolating the cause of a problem. Core dumping is enabled by default. The directory /var/tmp contains core files. Junos OS saves the current core file (0) and the four previous core files, which are numbered from 1 through 4 (from newest to oldest):


By default, all members of a configured user group (with read-only permissions) can access the core dump files and attach them to cases associated with JTAC.

  • core-dump—Enable the core dumping operation.

  • no-core-dump—Disable the core dumping operation.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Release Information

Statement introduced before Junos OS Release 7.4.