BigIron RX Series Configuration Guide 126153-1001986-01AppendixAUsing SyslogThis appendix describes how to display Syslog messages and how to configure the Syslog facility,and lists the Syslog messages that a BigIron RX can display during standard operation.NOTEThis appendix does not list Syslog messages that can be displayed when a debug option is enabled.A device’s software can write syslog messages to provide information at the following severitylevels:• Emergencies• Alerts• Critical• Errors• Warnings• Notifications• Informational• DebuggingThe device writes the messages to a local buffer, which can hold up to 1000 entries.You also can specify the IP address or host name of up to six Syslog servers. When you specify aSyslog server, the device writes the messages both to the system log and to the Syslog server.Using a Syslog server ensures that the messages remain available even after a system reload. Thedevice’s local Syslog buffer is cleared during a system reload or reboot, but the Syslog messagessent to the Syslog server remain on the server.The Syslog service on a Syslog server receives logging messages from applications on the localhost or from devices such as a device. Syslog adds a time stamp to each received message anddirects messages to a log file. Most Unix workstations come with Syslog configured. Some thirdparty vendor products also provide Syslog running on NT.Syslog uses UDP port 514 and each Syslog message thus is sent with destination port 514. EachSyslog message is one line with Syslog message format. The message is embedded in the textportion of the Syslog format. There are several subfields in the format. Keywords are used toidentify each subfield, and commas are delimiters. The subfield order is insensitive except that thetext subfield should be the last field in the message. All the subfields are optional.Displaying Syslog messagesTo display the Syslog messages in the device’s local buffer, enter the following command at anylevel of the CLI.
