360 V7122 GatewayUser GuideEnableDiagnostics is set to 2, flash is only partially tested. If an error is detected, an errormessage is sent to the Syslog. Run-time test (Periodic): Used for monitoring the gateway during run-time.The Periodic Test is performed every hour after startup, even when there is full traffic onthe gateway; quality is not degraded. The following hardware components are beingtested: TSA. PSTN framers (when they are used). Missing DSP’s. Conference channels (where they are supported). If an error is detected, an error message is sent to the Syslog.To continue regular operation, the Detailed test must be disabled. Set theparameter EnableDiagnostics to 0 and reset the gateway.Syslog SupportSyslog protocol is an event notification protocol that enables a machine to send eventnotification messages across IP networks to event message collectors- also known asSyslog servers. Syslog protocol is defined in the IETF RFC 3164 standard.Since each process, application and operating system was written independently, there islittle uniformity to Syslog messages. For this reason, no assumption is made on the contentsof the messages other than the minimum requirements of its priority.Syslog uses UDP as its underlying transport layer mechanism. By default, UDP port 514 isassigned to Syslog, but this can be changed (using the SyslogServerPort parameter).The Syslog message is transmitted as an ASCII (American Standard Code for InformationInterchange) message. The message starts with a leading ‘<’ ('less-than' character), followedby a number, which is followed by a ‘>’ ('greater-than' character). This is optionally followedby a single ASCII space.The number described above is known as the Priority and represents both the Facility andSeverity as described below. The Priority number consists of one, two, or three decimalintegers.For example:<37> Oct 11 16:00:15 mymachine su: 'su root' failed for lonvick on/dev/pts/8When NTP is enabled, a timestamp string [hour:minutes:seconds] is added to allSyslog messages (for information on NTP, see Simple Network Time ProtocolSupport).
