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size bytes;

Hierarchy Level

Release Information

Statement introduced before JUNOS Release 7.4.


Specify the maximum size of each file containing sample or log data. The file size is limited by the number of files to be created and the available hard disk space.

When a traffic sampling file named sampling-file reaches the maximum size, it is renamed sampling-file.0. When the sampling-file again reaches its maximum size, sampling-file.0 is renamed sampling-file.1 and sampling-file is renamed sampling-file.0. This renaming scheme continues until the maximum number of traffic sampling files is reached. Then the oldest traffic sampling file is overwritten.


bytes—Maximum size of each traffic sampling file or trace log file, in kilobytes (KB), megabytes (MB), or gigabytes (GB).

Syntax: xk to specify KB, xm to specify MB, or xg to specify GB
Range: 10 KB through the maximum file size supported on your router
Default: 1 MB for sampling data; 128 KB for log information

Usage Guidelines

See Configuring Port Mirroring or Configuring Traffic Sampling.

Required Privilege Level

interface—To view this statement in the configuration.

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

Published: 2010-04-28

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