Network management

About: Network management is a research topic. Over the lifetime, 17859 publications have been published within this topic receiving 234520 citations. The topic is also known as: computer network management & NM.

Out-of-band network management channels

Abstract: The present invention provides a method and apparatus for improving management and network availability by providing out-of-band management channels between network/element management system (NMS) clients and servers. High priority client requests and server notifications may be sent over the out-of-band management channels to ensure fast response times. In addition, periodic roll calls between NMS clients and NMS servers may be executed over the out-of-band management channels to allow for quick discovery of any disconnects and reclaiming associated client resources. Further, periodic roll calls may be conducted between the NMS servers and the network devices to which they are connected, and if a server discovers that a network device has gone down, it may send a high priority notification to appropriate NMS clients over the out-of-band management channels to ensure a fast response by the clients. Sending high priority messages over out-of-band management channels maximizes client/server management availability and, hence, network availability.

Automatic fault detection, isolation, and recovery in transparent all-optical networks

Abstract: Network fault identification is an important network management function, which is closely related to fault management and has an impact on other network management functions such as configuration management, and performance management. This paper investigates fault surveillance and fault identification mechanisms for a transparent optical network in which data travels optically from the source node to the destination node without going through any optical-to-electrical (O/E) or electrical-to-optical (E/O) conversion. Mechanisms and algorithms are proposed to detect and isolate faults such as fiber cuts, laser, receiver, or router failures. These mechanisms allow nonintrusive device monitoring without requiring any prior knowledge of the actual protocols being used in the data transmission.

Network manager providing advanced interconnection capability

Abstract: A network manager (10) for configuring and controlling a simulated telecommunications network having a plurality of nodes (12-19) which communicate in a plurality of communications protocols. The network manager dynamically connects and disconnects each of the plurality of nodes to the network. The network manager (10) also determines which of the plurality of communications protocols is utilized by each of the plurality of nodes, establishes connections between nodes which communicate in compatible communications protocols, and denies connections requested between nodes which communicate in incompatible communications protocols. The network manager (10) includes a Design function (25) and a Supervisory function (26). The Design function (25) sets up the network, defines nodes, defines which nodes are to operate on which workstations, and establishes connections. The Supervisory function (26) manages and operates the network. This includes launching the network, monitoring the nodes and links, and reconfiguring the network when requested. The Supervisory function (26) initiates each node, dynamically takes nodes down and brings them back up again, severs links and reinstates them, and provides an operator with status information for each node and each link in the network. A Graphical User Interface is provided for operator interaction with the network manager (10).

Management Information Base (MIB) for the Simple Network Management Protocol (SNMP)

Abstract: This document defines managed objects which describe the behavior of a Simple Network Management Protocol (SNMP) entity. This document obsoletes RFC 1907, Management Information Base for Version 2 of the Simple Network Management Protocol (SNMPv2).