Configuring System Logging for a Routing Matrix

This section explains how to configure system logging for the T640 Internet routing nodes and TX Matrix platform in a routing matrix. It assumes you are familiar with system logging for single-chassis systems. For more information about routing matrixes, see the Junos System Basics Configuration Guide and the TX Matrix Platform Hardware Guide.

To configure system logging for all platforms in a routing matrix, include the syslog statement at the [edit system] hierarchy level on the TX Matrix platform. The syslog statement applies to every platform in the routing matrix.

[edit system]
syslog {
	archive {
		files number;
		size size;
		(world-readable | no-world-readable);
	}
	console {
	facility severity;
	}
	file filename {
	facility severity;
	explicit-priority;
	match "regular-expression";
	structured-data {
		brief;
	}
	archive {
		files number;
		size size;
		(world-readable | no-world-readable);
	}
}
host (hostname | other-routing-engine | scc-master) {
	facility severity;
	explicit-priority;
	facility-override facility;
	log-prefix string;
	match "regular-expression";
}
source-address source-address;
time-format (year | millisecond | year millisecond);
user (username | *) {
	facility severity ;
	match "regular-expression";
}
}

When included in the configuration on the TX Matrix platform, the following configuration statements have the same effect as on a single-chassis system, except that they apply to every platform in the routing matrix:

archive—Sets the size and number of log files archived on each platform in the routing matrix. See Configuring the Size and Number of Log Files.
console—Directs the specified messages to the console of each platform in the routing matrix. See Directing Messages to the Console.
file—Directs the specified messages to a file of the same name on each platform in the routing matrix. See Logging Messages in Structured-Data Format.
match—Limits the set of messages logged to a destination to those that contain (or do not contain) a text string matching a regular expression. See Using Regular Expressions to Refine the Set of Logged Messages.
The separate match statement at the [edit system syslog host scc-master] hierarchy level applies to messages forwarded from the T640 routing nodes to the TX Matrix platform.
source-address—Sets the IP address of the routing platform to report in system log messages as the message source, when the messages are directed to the remote machines specified in all host hostname statements at the [edit system syslog] hierarchy level, for each platform in the routing matrix. The address is not reported in messages directed to the other Routing Engine on each platform or forwarded to the TX Matrix platform by the T640 routing nodes. See Specifying an Alternative Source Address for System Log Messages.
structured-data—Writes messages to a file in structured-data format. See Logging Messages in Structured-Data Format.
time-format—Adds the millisecond, year, or both to the timestamp in each standard-format message. See Including the Year or Millisecond in Timestamps.
user—Directs the specified messages to the terminal session of one or more specified users on each platform in the routing matrix that they are logged in to. See Directing Messages to a User Terminal.

The effect of the other statements differs somewhat for a routing matrix than for a single-chassis system. For more information, see the following sections: