Technical Documentation

traceoptions

Syntax

traceoptions {file name <size size> <files number> > <world-readable | no-world-readable>;flag flag <flag-modifier> <disable>;}

Hierarchy Level

[edit protocols bfd],[edit protocols bgp],[edit protocols isis],[edit protocols ldp],[edit protocols mpls],[edit protocols ospf],[edit protocols ospf3],[edit protocols pim],[edit protocols rip],[edit protocols ripng],[edit routing-options]

Release Information

Statement introduced before JUNOS Release 7.4.

nsr-synchronization flag for BGP, IS-IS, LDP, and OSPF added in JUNOS Release 8.4.

nsr-synchronization and nsr-packet flags for BFD sessions added in JUNOS Release 8.5.

nsr-synchronization flag for RIP and RIPng added in JUNOS Release 9.0.

nsr-synchronization flag for Layer 2 VPNs and VPLS added in JUNOS Release 9.1.

nsr-synchronization flag for PIM added in JUNOS Release 9.3.

nsr-synchronization flag for MPLS added in JUNOS Release 10.1.

Description

Define tracing operations that track nonstop active routing (NSR) functionality in the router.

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

Default

If you do not include this statement, no global tracing operations are performed.

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.

file name—Name of the file to receive the output of the tracing operation. Enclose the name within quotation marks. All files are placed in the directory /var/log. We recommend that you place global routing protocol tracing output in the file routing-log.

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

Range: 2 through 1000 files
Default: 2 files

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

flag flag—Tracing operation to perform. To specify more than one tracing operation, include multiple flag statements. The nonstop active routing tracing options are:

  • nsr-packet—Detailed trace information for BFD nonstop active routing only
  • nsr-synchronization—Tracing operations for nonstop active routing
  • nsr-synchronization-detail—(MPLS only) Tracing operations for nonstop active routing in detail

flag-modifier—(Optional) Modifier for the tracing flag. Except for BFD sessions, you can specify one or more of these modifiers:

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

no-world-readable—Restrict users from reading the log 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.

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: 128 KB

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

world-readable—Allow users to read the log file.

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.

Published: 2010-04-28