In network management, fault management is the set of functions that detect, isolate, and correct malfunctions in a telecommunications network, compensate for environmental changes, and include maintaining and examining error logs, accepting and acting on error detection notifications, tracing and identifying faults, carrying out sequences of diagnostics tests, correcting faults, reporting error conditions, and localizing and tracing faults by examining and manipulating database information. Network management refers to the maintenance and administration of large-scale computer networks and telecommunications networks at the top level. ... In mathematics, a set can be thought of as any collection of distinct objects considered as a whole. ... A computer glitch is the failure of a system, usually containing a computing device, to complete its functions or to perform them properly. ... Data logging is the practice of recording sequential data, often chronologically. ... In general, detection is the extraction of intelligence from a carrier signal in a communication system. ... This article is about computing. ... The ASCII codes for the word Wikipedia represented in binary, the numeral system most commonly used for encoding computer information. ...

When a fault or event occurs, a network component will often send a notification to the network operator using a protocol such as SNMP. An alarm is a persistent indication of a fault that clears only when the triggering condition has been resolved. A current list of problems occurring on the network component is often kept in the form of an active alarm list such as is defined in RFC 3877,the Alarm MIB. The Simple Network Management Protocol (SNMP) forms part of the internet protocol suite as defined by the Internet Engineering Task Force. ... A management information base (MIB) is a type of database used to manage the devices in a communications network. ...

Fault management systems may use complex filtering systems to assign alarms to severity levels. These can range in severity from debug to emergency, as in the syslog protocol.^[1] Alternatively, they could use the ITU X.733 Alarm Reporting Function's perceived severity field. This takes on values of cleared, indeterminate, critical, major, minor or warning. Note that the latest version of the syslog protocol draft under development within the IETF includes a mapping between these two different sets of severities. It is considered good practice to send a notification not only when a problem has occurred, but also when it has been resolved. The latter notification would have a severity of clear. syslog is a standard for forwarding log messages in an IP network. ... The Internet Engineering Task Force (IETF) is charged with developing and promoting Internet standards. ...

A fault management console allows a network administrator or system operator to monitor events from multiple systems and perform actions based on this information. Ideally, a fault management system should be able to correctly identify events and automatically take action, either launching a program or script to take corrective action, or activating notification software that allows a human to take proper intervention (i.e. send e-mail or SMS text to a mobile phone). Some notification systems also have escalation rules that will notify a chain of individuals based on availability and severity of alarm. The terms network administrator, network specialist and network analyst designate job positions of engineers involved in computer networks, the people who carry out network administration. ... A SysOp is short for system operator, and is a commonly used term for the administrator of a bulletin board system (BBS) or special-interest area of an online service or, historically, the operators of any computer system, especially a mainframe computer. ... Wikipedia does not yet have an article with this exact name. ... SMS arrival notification on a Siemens phone Text messaging, or texting is the common term for the sending of short (160 characters or fewer) text messages, using the Short Message Service, from mobile phones. ...

There are two primary ways to perform fault management - these are active and passive. Passive fault management is done by collecting alarms from devices (normally via SNMP) when something happens in the devices. In this mode, the fault management system only knows if a device it is monitoring is smart enough to throw and error and report it to the management tool. However, if the device being monitored fails completely or locks up, it won't throw an alarm and the problem will not be detected. Active fault management addresses this issue by actively monitoring devices via tools such as PING to determine if the device is active and responding. If the device stops responding, active monitoring will throw an alarm showing the device as unavailable and allows for the proactive correction of the problem. The Simple Network Management Protocol (SNMP) forms part of the internet protocol suite as defined by the Internet Engineering Task Force. ... For other uses, see Ping (disambiguation). ...

Notes

References