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traceoptions (Diameter Base Protocol)


Hierarchy Level


Define tracing options for Diameter peers.


file filename

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

files number

(Optional) Create the specified maximum number of trace files 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.

  • Range: 2 through 1000

  • Default: 3 files

flag flag

Use the specified tracing operation. To specify more than one tracing operation, include multiple flag statements. You can include the following flags:

  • all—Trace all operations.

  • receive—Trace received packets.

  • receive-detail—Trace received packets in detail.

  • send—Trace transmitted packets.

  • send-detail—Trace transmitted packets in detail.

  • state—Trace Diameter peer state changes.

  • timeout—Trace timeout events.


Use the specified level of tracing. You can specify any of the following levels:

  • all—Match all levels.

  • error—Match error conditions.

  • info—Match informational messages.

  • notice—Match notice messages about conditions requiring special handling.

  • verbose—Match verbose messages.

  • warning—Match warning messages.

match regular-expression

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


Disable remote tracing.


(Optional) Disable unrestricted file access.

peer peer-name

(Optional) Trace packets sent to or received from the specified peer. The specified peer must be defined at the [edit access diameter peer] hierarchy level.

size maximum-file-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.

  • Syntax: sizek to specify KB, sizem to specify MB, or sizeg to specify GB

  • Range: 10240 through 1073741824

  • Default: 128 KB


(Optional) Enable unrestricted file access.

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 Release 17.1.