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Tracing Operations of the Interface Process

To trace the operations of the routing platform’s interface process, dcd, include the traceoptions statement at the [edit interfaces] hierarchy level:



[edit interfaces]

traceoptions {
file filename <files number> <size size> <world-readable |
no-world-readable> <match regex>;
flag flag <disable>;
}

By default, interface process operations are placed in the file named dcd and three 1-MB files of tracing information are maintained.

You can specify the following flags in the interfaces traceoptions statement:

change-events—Log changes that produce configuration events.
config-states—Log the configuration state machine changes.
kernel—Log configuration IPC messages to kernel.
kernel-detail—Log details of configuration messages to kernel.

For general information about tracing, see the tracing and logging information in the JUNOS System Basics Configuration Guide.

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