A framework for modeling and reasoning about network management resources and services to support information reuse

A variety of Web-based applications, mobile apps, and other over the top data services with affordable 3G/4G enabled smart devices are major factors for enormous increase in heterogeneous data traffic at enterprise and mobile networks. This creates challenges regarding traffic management and requires traffic-aware intelligent network management to deliver sustained quality of experience for subscribers. Deep packet inspection and analysis (DPIA) provides base platform for development of traffic-aware intelligent network management and security systems. However, computationally complex DPIA-related packet processing for high speed data traffic makes these systems expensive. Furthermore, conventionally these traffic-aware network management and security systems are deployed in enterprise networks with independent and dedicated DPIA-related processing resources and require multiple copies of passively provisioned high speed data from network, while performing similar DPIA operations over the same data again and again. This duplicate deployment of expensive software and hardware resources for DPIA processing eventually results in higher capital expenditures as well as operational expenditures for network operators. We have proposed a novel service-oriented framework for heterogeneous deep packet inspection and analysis (SoDPI) that simultaneously provides diversified DPIA services to multiple client applications for network management and security operations in high-speed networks. Proposed framework provides flexible and comprehensive API-based service interface for client applications to register required DPIA services. SoDPI framework implementation is based on commodity hardware and deploys shared set of DPIA-related packet processing components, requiring only single copy of passive data provisioned from network. Experimental evaluations show that novel SoDPI framework requires considerably reduced amount of software and hardware resources to fulfill heterogeneous DPIA packet processing requirements for multiple client applications in comparison with conventional network management and security applications with dedicated DPIA components. This results in lower cost impacts for network operators with more network manageability.

Focused interfaces for end-user network management

Network management has suffered from increases in business, system, and operational complexity. This has been exacerbated by the heterogeneity in management data as well as the high quality requirements of multimedia services. Autonomic networking manages this growing complexity by adding intelligence inside network nodes and network management applications. While most autonomic applications simply use a control loop to monitor and configure entities, our work is aimed at building a self-governing network that is able to fulfill the requirements of current and future services. This means that management applications need a detailed and dynamic view of the contextual status of the network nodes as a whole in order to adapt their behaviour to changing context. In this paper, we propose an algorithm to semi-automatically generate filter rules based on existing information in a network management information model. These filter rules are used to determine the set of contextual data that needs to be exchanged with other nodes. The algorithm exploits the reasoning capabilities of ontologies and relies on the introduction of additional semantic relationships to achieve a fine-grained context exchange model. Large scale evaluations were conducted to characterise the performance of this ontological approach.

Today few organizations have a thorough understanding of what is on their networks at any given time. This study tries to develop Computer and Network Asset Manager (CNAM) that is a network management application which helps large enterprises, and Small medium enterprises (SMEs) service providers, manage their data centers and IT infrastructure efficiently and cost effectively. CANM collects information on all hardware components of the network instruments that are on the network. In this project, a real-time network monitoring method is suggested for dynamic information to reduce the complexity and cost based on network management. In the proposed method, a Simple Network Management Protocol (SNMP) is first used to collect data for start interaction between equipment in the specific data center, to gather these data SNMP would need to request it from Management Information Base (MIB) that served as a database for stored information. Furthermore, to ensure data authenticity in the management station that fetches real-time data periodically from equipment, network engineer would have to manually key-in static information into CNAM when it was first launched. The SNMP would then pick up on this stored static information and automatically began collecting real-time data; this feature will be developed with the help of Model View Controller (MVC) pattern that is a software pattern for implementing user interfaces. It allows users to have interaction with the CNAM as well as input the related data. The object oriented approach shall be used to implement SNMP and MIB which represents system management information. Web Based Enterprise Management (WBEM) is required in order to transfer protocol like SNMP, as well as to enter the actual data manually for further authenticity with the real time data. This study would hopefully encourage companies to try an interactive solution for problem in managing their equipment in the data center.

This article describes a key derivation method that greatly simplifies key distribution issues for network management (NM) applications and may in some cases relieve NM stations from the need to store any keys at all. This method is easily generalized for network protocols and applications where several masters need to talk to a large number of slaves. It shows a way to cut down on the amount of keys stored with little impact on security. This is especially important when human users are involved.

Existing evaluation methods either investigate whether ontologies are “fit for purpose”, or focus on evaluating consistencies of the data in regard to the axioms defined in the ontologies. In this paper, we focus on how to evaluate the consistency of ontology with respect to taxonomic relationships, and we suggest a new measure to evaluate the taxonomic consistency of an ontology. As the semantic relatedness measure between concepts in ontologies is the key part of ontology consistency measure, we firstly propose a new approach to measure the semantic rela-tedness for pairs of words. Several experiments demonstrate that the proposed ontology measure identifing the consistency with respect to taxonomic relationships is better than existing approaches.

In this paper a new method is proposed that solves for the steady state of pressure-dependent models (PDMs) with flow control valves. Rather than model flow devices individually, the method solves the more general problem in which a water distribution system (WDS) has some link flows constrained to lie between upper and lower, or possibly equal, set limits. No heuristics are used to determine device states. The method is shown to be fast, and its effectiveness is demonstrated on PDM WDSs with up to about 20,000 links and 18,000 nodes and 60 link flow constraints, some of which prescribe a fixed flow. The method has applications in network management, network design, and flow control to deal with water distribution where there is insufficient supply.

In-band network telemetry (INT) enriches network management at scale through the embedding of complete device-internal states into each packet along its forwarding path, yet such embedding of INT information also incurs significant band-width overhead in the data plane. We propose DeltaINT, a general INT framework that achieves extremely low bandwidth overhead and supports various packet-level and flow-level applications in network management. DeltaINT builds on the insight that state changes are often negligible at most time, so it embeds a state into a packet only when the state change is deemed significant. We theoretically derive the time/space complexities and the bounds of bandwidth mitigation for DeltaINT. We implement DeltaINT in both software and P4. Our evaluation shows that DeltaINT reduces up to 93% of INT bandwidth, and its deployment in a Barefoot Tofino switch incurs limited hardware resource usage.

With the GPON technology getting matured and globally be deployed, the control and management issues of service integration were getting more concerned. The related application service control management issues are specified in TR-156, which is set up by the international standards organization, Broadband Forum. In addition, Broadband Forum also started the relevant amendments for the next generation passive optical network technology standard XG-GPON (ITU-T G.987/G.988 draft). Besides, because most network management operation system still leverages SNMP (Simple Network Management Protocol) technology, how to gracefully integrate the SNMP network management control technology for the XG-PON or GPON system will become an important issue. In this article, the next generation GPON/XG-PON application service control and management technology will be introduced.

Presently, integrated network management systems are being developed based on the open systems interconnection (OSI) management standards to manage information networks under the multivendor environment in an integrated manner. In this paper, an optimal scope-patterns decision method for efficient OSI management operation is proposed. The scope patterns are common management information service (CMIS) operational range specifications based on the containment relationship between managed objects. The motivation for this study is to improve human interfaces for network management systems by providing a translating function for operator-specified operational ranges based on various kinds of relationships into CMIS scope patterns. The proposed method provides the ability to translate automatically operator-specified operational ranges based on any kind of relationship into possible CMIS scope-pattern candidates and the ability to define optimal scope patterns for minimizing invoked operations by solving an integer programming problem using a fast computing approximate algorithm. Thus, network management operators can achieve user-friendly human-machine interaction and efficient management operation.

Java preserves much of Cpp, and offers compelling benefits: it is object-oriented, portable and relatively easy to master and maintain. These, and other benefits, can greatly speed the development cycle for Web-based network management applications. This article discusses these issues, and gives an overview of Java’s relevance for network managers. © 1998 John Wiley & Sons, Ltd.

Call level quality of service management in FCA-based wireless multimedia networks by Frederick Shiu-kai Lai thesis 1998 xii, 86 leaves : ill. ; 30 cm In wireless cellular networks, the management of hand-off dropping probabilities for different types of traffic…Read more ›

From 03.10.04 to 06.10.04, the Dagstuhl Seminar 04411 ``Service Management and Self-Organization in IP-based Networks'' was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available.

The complexity of the current applications causes the need for an assistance of information systems' (IS) design allowing the comprehension of the field to be modeled and the determination of its concepts and their relationships. This assistance must conserve the semantics given by the conceptual representations results from the studied field, making it possible to fill the existing limitations of the current CASE. To do so, we propose in this paper the use of an ontology, constructed for the modeled field, as a help to IS designers. Indeed, the ontology represents an explicit specification of a conceptualization, represented using our semi-formal language UMLOnto. This language allows the representation of the semantic richness between the ontology concepts. In this paper, we present a framework for IS' ontologies building using the UMLOnto language.

The telecommunication industry has adopted object-oriented technology to represent specifications for a variety of standards, including those addressing inter-operability between network management applications developed in a multi-vendor environment. The CCITT TMN and OMNIPoint specifications include a large set of managed object definitions required by network management applications, and work is in progress to define additional managed objects for specific application domains. The object-oriented technology provides a more natural programming paradigm, and has a potential for higher reuse of software, resulting in a reduction of costs of development, operations, and maintenance of applications. Application development with object-oriented technology can be simplified through a set of development tools and middleware which can automate many of the commonly needed, complex, and error-prone tasks with the development. Automating these tasks allows application developers to concentrate on end-user functionality such as network fault isolation. We discuss AT&T's Management Application Architecture (MAA) which facilitates inter-operability of management applications, and inter-operability of objects and services within an application. We also discuss the object-oriented technology provided by AT&Ts BaseWorX applications platform which supports the MAA vision, and how the platform simplifies the development of standards-conformant network management applications. >