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traceoptions (Inline Monitoring)


Hierarchy Level


Configure traceoptions for the inline monitoring process.


file file-name

Use the specified file to receive the output of the tracing operation. All files are placed in the directory /var/log.

files files

(Optional) Use the specified maximum number of trace files to create before overwriting the oldest one. If you specify a maximum number of files, you also must specify a maximum file size with the size option.

  • Default: 3 files

  • Range: 2 through 1000 files

match match

(Optional) Use the specified regular expression to refine the output to include lines that contain the regular expression.


Disable remote tracing.


(Default) Disable unrestricted file access. This means the log file can be accessed only by the user who configured the tracing operation.


(Optional) Enable unrestricted file access.

size size

(Optional) Use the specified maximum size of each trace file. By default, the number entered is treated as bytes. Alternatively, you can include a suffix to the number to indicate kilobytes (KB), megabytes (MB), or gigabytes (GB). If you specify a maximum file size, you also must specify a maximum number of trace files with the files option.

  • Range: 10 KB through 1 GB

  • Default: 128 KB

Required Privilege Level

trace—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS 19.4R1.