Trace Route Resolution Operations

Route resolution tracing operations track all route next-hop resolution operations and record them in a log file.

For a general discussion of tracing and the precedence of multiple tracing operations, see the JUNOS Internet Software Configuration Guide: Getting Started.

To configure route resolution tracing flags, include the traceoptions statement:

[edit routing-options resolution]

traceoptions { 

    file name <replace> <size size> <files number> <no-stamp> 

        <(world-readable | no-world-readable)>;

    flag flag <flag-modifier> <disable>; 

}

For a list of hierarchy levels at which you can configure this statement, see the statement summary section for this statement.

You can specify the following route resolution tracing flags:

• all—Trace all tracing operations.
• event—Trace event processing.
• flash—Trace flash processing.
• indirect—Trace indirect next-hop additions, deletions, and changes.
• kernel—Trace kernel communication.
• task—Trace task/job processing.

To configure a routing policy that can be used to filter trace output, include the tracefilter statement at the [edit routing-options resolution] hierarchy level (for routing instances, include the statement at the [edit routing-instances routing-instance-name routing-options resolution] hierarchy level):

[edit routing-options resolution]

tracefilter [ policy-names ];