traceoptions

Syntax

traceoptions { 

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

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

    flag flag <flag-modifier> <disable>;

}

Hierarchy Level

[edit logical-routers logical-router-name protocols mpls],

[edit logical-routers logical-router-name protocols mpls label-switched-path 
lsp-path-name],

[edit protocols mpls],

[edit protocols mpls label-switched-path lsp-path-name]

Description

Configure MPLS tracing options at the protocol level or for a label-switched path.

To specify more than one tracing operation, include multiple flag statements.

Default

The default MPLS protocol-level tracing options are inherited from the routing protocols traceoptions statement included at the [edit routing-options] hierarchy level.

Options

disable—(Optional) Disable the tracing operation. You can use this option to disable a single operation when you have defined a broad group of tracing operations, such as all.

filename—Name of the file to receive the output of the tracing operation. All files are placed in the directory /var/log. We recommend that you place MPLS tracing output in the file mpls-log.

files number—(Optional) Maximum number of trace files. When a trace file named trace-file reaches its maximum size, it is renamed as trace-file.0, then as trace-file.1, and so on, until the maximum number of trace files is reached. Then the oldest trace file is overwritten.

If you specify a maximum number of files, you also must specify a maximum file size with the size option.

Range: 2 to 1000
Default: 2 files

flag—Tracing operation to perform. To specify more than one tracing operation, include multiple flag statements.

MPLS Tracing Flags

• connection—All circuit cross-connect (CCC) activity
• connection-detail—Detailed CCC activity
• cspf—CSPF computations
• cspf-link—Links visited during CSPF computations
• cspf-node—Nodes visited during CSPF computations
• error—MPLS error packets
• graceful-restart—Trace MPLS graceful restart events
• lsping—Trace lsping packets and return codes
• state—All LSP state transitions

Global Tracing Flags

• all—All tracing operations
• general—A combination of the normal and route trace operations
• normal—All normal operations
  Default: If you do not specify this option, only unusual or abnormal operations are traced.
• policy—Policy operations and actions
• route—Routing table changes
• state—State transitions
• task—Interface transactions and processing
• timer—Timer usage

flag-modifier—(Optional) Modifier for the tracing flag. You can specify one or more of these modifiers:

• detail—Detailed trace information
• receive—Packets being received
• send—Packets being transmitted

no-stamp—(Optional) Do not place timestamp information at the beginning of each line in the trace file. 
Default: If you omit this option, timestamp information is placed at the beginning of each line of the tracing output.

no-world-readable—(Optional) Disallow any user to read the log file.

replace—(Optional) Replace an existing trace file if there is one. 
Default: If you do not include this option, tracing output is appended to an existing trace file.

size size—(Optional) Maximum size of each trace file, in kilobytes (KB), megabytes (MB), or gigabytes (GB). When a trace file named trace-file reaches this size, it is renamed trace-file.0. When the trace-file again reaches its maximum size, trace-file.0 is renamed trace-file.1 and trace-file is renamed trace-file.0. This renaming scheme continues until the maximum number of trace files is reached. Then, the oldest trace file is overwritten.

If you specify a maximum file size, you also must specify a maximum number of trace files with the files option.

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 system
Default: 1 MB

world-readable—(Optional) Allow any user to read the log file.

Usage Guidelines

See Trace MPLS and LSP Packets and Operations.

Required Privilege Level

routing and trace—To view this statement in the configuration.
routing-control and trace-control—To add this statement to the configuration.