SNMP-based acquisition system for DiffServ parameters

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 paper presents Virtual-Machines-MIB, a MIB (Management Information Base) directed to virtual machines management through SNMP (Simple Network Management Protocol). Virtual-Machines-MIB aims to define a standard interface of virtual machines management, allowing the management of several virtual machines monitors, like Xen, KVM and VMWare, with a common SNMP management tool. Different from previous virtual machines management MIBs, which allows the manager to perform only monitoring operations, Virtual-Machines-MIB allows to perform control operations, like create, delete, restart, turn on, pause and shut down virtual machines. It is also possible to use the proposed solution to change a virtual machine's name, amount of RAM, virtual CPU's and virtual storage drives. Practical results are presented using ordinary SNMP management tools performing KVM and Xen management. To do this, SNMP agents which support Virtual-Machines-MIB were developed and installed on KVM and Xen hosts. These SNMP agents are based on NET-SNMP public domain's agent, that was extended to support Virtual-Machines-MIB using libvirt API.

The Remote network-MONitoring (RMON) standard is a valuable addition to the Simple Network Management Protocol (SNMP), providing network managers with important global network information. Unlike SNMP agents, RMON agents operate in promiscuous mode and process all packets traversing the local net. The RMON management information base (MIB) supplements the SNMP MIB-II standard MIB. We present common network problems that cannot be solved using existing MIB-II or RMON objects. To solve these problems, we develop extensions to the RMON matrix group to gather network layer statistics that result in a view of packet traffic beyond the local network. Our extensions increase the ability to analyze and solve network configuration problems and perform troubleshooting. We demonstrate our results by implementing and analyzing two “live” internetworking problems. Data collected from these experiments showed that network traffic patterns can be isolated by individual subnets, thus more easily identifying sources of congestion.

This paper proposes a system architecture design for the Internet of Things (IoT) implemented in temperature and relative humidity measurement using DHT 11 temperature and humidity sensor. Simple Network Management Protocol (SNMP) is used to manage different network devices and transfer information so that the ESP32 Wi-Fi microcontroller connected to the sensor can communicate with Open Platform Communication (OPC) server. In addition, the network variables are identified by Object Identifiers (OIDs) then collected to Management Information Base (MIB). These two elements are required by the SNMP monitoring tool for enabling the user to monitor network infrastructure and run troubleshooting. Data acquired from the ESP32 Wi-Fi microcontroller are accumulated on the OPC server using SNMP and subsequently transferred to the OPC Client such as Human Machine Interface (HMI) and OPC data logger. The OPC server has a ping channel feature to determine network latency measured as a round trip time – the time taken for data to get its destination and back again. Later on, the ESP32 microcontroller was also connected to a mobile application via Wi-Fi for displaying real-time data simultaneously with the HMI. The SNMP network latency test on the proposed system architecture design results in 126,33 ms for 13 minutes without a corrupt packet of data. The result indicates SNMP can be used as an alternative protocol for IoT data communication.

Security policy and security techniques have long been major research topics, but little work has been reported on management of distributed security applications other than Intrusion Detection Systems (IDS). We believe management of secure applications will see dramatic growth as adequate tools become available. This paper reviews security management issues and suggests management objects for use by Simple Network Management Protocol (SNMP) tools to collect, log, and display events and alert operators to possible trouble. We focus on the issues of adapting the necessary status and control mechanisms (management infrastructure and agents) to accommodate security management needs. To make a complete security Management Information Base (MIB), additional MIB modules must be defined for firewalls (packet filtering and proxy servers), security audit trails and IDS management parameters. Security firewalls and IDS applications are assessed for management via SNMP and are proposed as future case studies. The Packet Filter Information Protocol (PFIP) is presented as a method to allow propagation of packet filter information among compatible firewall hosts and routers in an IP-based network. We use a scenario of corporate firewalls to assess concepts of correctness, sufficiency and completeness. The properties of SNMP, version 2 that support secure management operations are reviewed and we propose further work toward an SNMP-based Security Management prototype.KeywordsFirewallsManagement Information Base (MIB)Network ManagementSNMPPacket Filter Information Protocol (PFIP)Security Application ManagementSecurity Management.

Optimizing the use of grid resources is critical for users to effectively exploit a Data Grid (DG). Data replication is considered as a major technique for increasing access performance and data availability in DG systems. Current works on data replications in Grid systems focuses on infrastructure for replication mechanism for creating or deleting replicas. One of the challenges in data replication is determining Optimal Number of Replicas (ONR) with Quality of Service (QoS) assurance, as well as their Optimal Location of Replicas (OLR) in DG. In this paper, we propose an algorithm that finds ONR of an object over DG systems, such that the overall communication and storage cost is minimized. This algorithm ensures that QoS required from the users are satisfied. In addition, we proposed a sketch of the proof for our algorithm and its integrity.

SNMP (Simple Network Management Protocol) is a standard protocol for management of network devices. It provides excellent features, such as scalability, information management, authentication, encryption, and access control. However, SNMP has a structural weakness to fully support control functions for integrated management of digital convergence devices, and it has a limitation of message length in SNMP communication. In this paper, we present an extended SNMP scheme for integrated management of digital convergence devices with control functions. We modified the SNMP architecture by adding DDS (Device Driver Subsystem) to SNMP engine for controlling different devices and by defining CADM (Control Agent Driver Model), in order to solve the ambiguity problem between 'set' and 'control' of SNMP. And the extended SNMP made it easy for SNMP applications to use various control functions. The extended SNMP can transport massive high-level information, such as messages in XML format by adding three new SNMP commands, which eliminate the limit of message length. Therefore, the extended SNMP is adequate to develop context-aware SNMP applications.

This paper proposes a new language for the development of distributed multimedia applications: Quality Assurance Language (QuAL). QuAL abstractions allow the specification of Quality of Service (QoS) constraints expected from the underlying computing and communication environment. QuAL specifications are compiled into run time components that monitor the actual QoS delivered. Upon QoS violations, application provided exception handlers are signaled to act upon the faulty events. Language level abstractions of QoS shelter programs from the heterogeneity of underlying infrastructures. This simplifies the development and maintenance of multimedia applications and promotes their portability and reuse. QuAL generates Management Information Bases (MIBs) that contain QoS statistics per application. Such MIBs may be used to integrate application level QoS management into standard network management frameworks.

To develop a network management system (NMS) more easily, the authors developed an application programming interface (API) for configuring network devices. Because this API is used in a Java development environment, an NMS can be developed by utilizing the API and other commonly available Java libraries. It is thus possible to easily develop an NMS that is highly compatible with other IT systems. And operations that are generated from the API and that are exchanged between the NMS and network devices are based on NETCONF, which is standardized by the Internet Engineering Task Force (IETF) as a next-generation network-configuration protocol. Adopting a standardized technology ensures that the NMS developed by using the API can manage network devices provided from multi-vendors in a unified manner. Furthermore, the configuration items exchanged over NETCONF are specified in an object-oriented design. They are therefore easier to manage than such items in the Management Information Base (MIB), which is defined as data to be managed by the Simple Network Management Protocol (SNMP). We actually developed several NMSs by using the API. Evaluation of these NMSs showed that, in terms of configuration time and development time, the NMS developed by using the API performed as well as NMSs developed by using a command line interface (CLI) and SNMP. The NMS developed by using the API showed feasibility to achieve “autonomic network management” and “high interoperability with IT systems.”

Two alternative customer network management (CNM) access configurations for the user's network management station to access a public carrier's CNM system using the simple network management protocol (SNMP) are described. In addition, a management information base containing UNI management information is developed along with CNM service capabilities that enable permanent virtual connection (PVC) service users to manage their access to and use of the B-ISDN transport network and services. The CNM service capabilities support proactive management tools that alert PVC service users to developing problems in their communications network of which the B-ISDN network and services are parts and enable users to take corrective action to avoid a network collapse.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

This document describes the View-based Access Control Model (VACM) for use in the Simple Network Management Protocol (SNMP) architecture. It defines the Elements of Procedure for controlling access to management information. This document also includes a Management Information Base (MIB) for remotely managing the configuration parameters for the View-based Access Control Model. This document obsoletes RFC 2575.

Mobile edge computing transfers computing and storage from traditional cloud servers to edge servers, presenting new challenges to quality assurance of edge services. Quality of Service (QoS) is considered as a defacto standard to evaluate similar services with different quality. Given the fact that QoS values are highly dynamic in complex edge environments, QoS monitoring is viewed as a promising technique to comprehensively and effectively understand QoS status of edge services. Due to the distributed storage of historical QoS data and the changeable edge environments, traditional QoS monitoring approaches cannot be directly applied into mobile edge computing. To address this problem, this paper proposes a novel multivariate QoS monitoring approach, called Rs-mBSRM (multivariate BayeSian Runtime Monitoring using Rough set), First, the weights of different QoS attributes are quantified and obtained according to the historical samples based on rough set theory. Second, a Bayesian classifier is constructed for each corresponding edge server during the training stage. Finally, during the monitoring stage, considering the distributed data storage, the classifier is dynamically switched and the attribute weights are also updated due to user mobility. Our experimental results on public data sets show that Rs-mBSRM is better than existing QoS monitoring approaches and is more suitable for mobile edge computing.

Purpose: the main goal is to simulate a process-oriented system for ensuring the quality of medical services in health care facilities in the Arctic zone of the Russian Federation. To achieve this goal, the following tasks were solved: formulated the main aspects of process-oriented quality assurance services in health care; a model was built for the implementation of a process-oriented system for ensuring the quality of services in the conditions of the Arctic territories; developed guidelines for the practical implementation of a process-oriented system to ensure the quality of medical services in the Arctic regions of the Russian Federation.Methods: this article is based on an interdisciplinary concept of ensuring the quality of medical services provided in relation to the specifics of the functioning and development of treatment-and-prophylactic organizations based on a process-oriented approach.Results: the most important direction of development of the national economy is to ensure an adequate level of quality of medical services provided in health care organizations and in the formation of patient-oriented service for end users (patients), which is especially important for the Arctic zone of the Russian Federation. The article analyzes foreign sources regarding the use of a process-oriented approach to the issues of ensuring the quality of medical services provided. Also in this publication a model of process-oriented quality assurance of medical services in the conditions of the Arctic territories of the Russian Federation is formed. Practical recommendations for the effective use of process-oriented mechanisms ensuring the quality of medical services in the Arctic regions of the Russian Federation have been developed.Conclusions and Relevance: the materials presented in the article show the special role of the health care system in social and economic processes. The proposed model of ensuring the quality of medical services is recommended for use not only in the represented region, it could be effective for all organizations in the field of health care, regardless of the form of ownership and organizational-legal form, as well as territorial location. Research conducted in this article represents the development of scientific ideas about modern technologies to ensure the quality of medical services in a regional perspective. The practical application of its results will improve the procedures for managing the quality of services, organizing business processes of basic medical activities, including the production of medical services, as well as their service characteristics in relation to healthcare, taking into account current economic and social trends, and as a result ensure their sustainable development.

Wireless communication is one of most active areas in modern communication researches, QoS (Quality of Service) assurance is very important for wireless communication systems design, especially for applications such as streaming video etc., which requires strict QoS assurance. The modern wireless networks multi-layer protocol stack structure results in QoS metrics layered and acting in cascade and QoS metrics vertical mapping between protocol layers. Based on virtual buffer between protocol layers and queuing technology, a unified layered QoS mapping framework is proposed in this paper, in which we first propose virtual queue concept, give a novelty united neighboring protocol layers QoS metric mapping framework, and analysis method based on dicerete-time Markov chain, and numerical results show that our proposed framework represents a significant improvement over previous model.

Wireless Sensor Networks (WSNs) have attracted significant research interest in recent years because of their suitability to a wide range of real world applications. The envisioned Internet Protocol (IP) support for WSNs requires interoperability with existing management solutions, like Simple Network Management Protocol (SNMP), in order to provide remote management functionality and assure the correct operation of the WSN. It is essential to provide a network management system that is interoperable with standard network management solutions, customizable, and extensible to various WSN applications. In this paper we present work in progress on our EmNetS Network Management Protocol (EMP), a lightweight and SNMP-compliant IP-based WSN (IP-WSN) management solution. We present detailed operational architecture and a Management Information Base (MIB) which is extensible to IP-WSN applications. We also present implementation details and preliminary results from our laboratory testbed.