traceoptions (Protocols LDP)
Syntax
traceoptions {
file filename <files number> <size size> <world-readable | no-world-readable>;
flag flag <flag-modifier> <disable>;
}
Hierarchy Level
[edit logical-systems logical-system-name protocols ldp], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols ldp], [edit protocols ldp], [edit routing-instances routing-instance-name protocols ldp]
Description
Specify LDP protocol-level trace options.
Default
The default LDP protocol-level trace 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.
file filename—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 ldp-log. We recommend that you place LDP tracing
output in the file ldp-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
Default: 2 files
If you specify a maximum number of files, you must also include
the size statement to specify the maximum file size.
flag flag—Tracing operation
to perform. To specify more than one tracing operation, include multiple flag statements.
address—Operation of address and address withdrawal messagesbinding—Label-binding operationserror—Error conditionsevent—Protocol eventsinitialization—Operation of initialization messageslabel—Operation of label request, label map, label withdrawal, and label release messagesnotification—Operation of notification messagesnsr-synchronization— Nonstop active routing synchronization eventsp2mp-nsr-synchronization—Point-to-multipoint nonstop active routing synchronization eventspackets—Equivalent to settingaddress,initialization,label,notification, andperiodicflags (see also thefilterflag modifier)path—Label-switched path operations
periodic—Operation of hello and keepalive messagesroute—Operation of route messagesstate—Protocol state transitions
flag-modifier—(Optional)
Modifier for the tracing flag. You can specify one or more of these
modifiers:
detail—Provide detailed trace information.disable—Disable this trace flag.filter—Filter to apply to this flag. Thefilterflag modifier can be applied only to theroute,path, andbindingflags. This flag modifier has the following options:match-on—Match on argument specified. Thematch-onoption has the following suboptions:address—Filter based on the source and destination addresses of packets. Available for thepacketsflag option only.fec—Filter based on the FEC associated with the traced object.
policy policy-name—Specify the filter policy.
receive—Packets being received.send—Packets being transmitted.
no-world-readable—(Optional) Prevent all 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 this 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:
xkto specify KB,xmto specify MB, orxgto specify GB
Range: 10 KB through the maximum file size supported on your system
Default: 1 MB
If you specify a maximum file size, you must also include the files statement to specify the maximum number of files.
world-readable—(Optional) Enable any user 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.
Release Information
Statement introduced before Junos OS Release 7.4.
match-on address option for the filter flag modifier added in Junos OS Release 10.4.
nsr-synchronization and p2mp-nsr-synchronization operations for flag statement introduced in Junos OS
Release 13.3.