Network configuration management in heterogeneous ATM environments

It is our great pleasure to welcome you to the 2nd ACM SIGCOMM Workshop on Programmable Routers for Extensible Services of TOmorrow -- PRESTO'09. There continues to be great interest in the networking research community in re-architecting the distribution of functions in IP networks. These efforts can be described as a dis-aggregation of router and switch functionality into various components and well-defined interfaces, towards the goals of deploying richer services and easing management of the network. Efforts in this space span the range from more sophisticated configuration interfaces, to open application programming interfaces (APIs) that allow specialized control and data plane functions on commercial routers, to open software, open firmware, and open hardware platforms that enable tremendous flexibility in the functionality of network equipment. While these open interfaces continue to evolve, many have reached a level of maturity that allow practitioners to create holistic network-centric functions and services by leveraging the available low-level per-device mechanisms. Indeed, programmable network elements hold the promise of accelerating innovation and service deployment. At the same time, programmability could exacerbate already challenging network management tasks. The PRESTO workshop provides a forum for the exchange of ideas between researchers and industry practitioners, with a goal of driving service innovation in IP networks using novel extensible router and switch architectures. The call for papers attracted 23 submissions from Asia, Canada, Europe, and the United States. The program committee accepted 12 papers that cover a variety of topics including primitives for service creation and measurement, data path programmability, platform refactoring, network configuration, and network management. In addition, each session of the program includes a mini-panel aimed at stimulating discussion and providing a broader perspective. We hope that these proceedings will serve as a valuable reference for researchers and developers interested in programmable router architectures.

Performance comparison of remote procedure calling and mobile agent approach to control and data transfer in distributed computing environment

Agent-based distributed problem solving environments decompose a given problem into a set of sub problems which can be processed in parallel and independently by autonomous and mobile agents at each computation node. Such an autonomous agent primarily makes use of local information which is provided at the respective computation node. This kind of information is characterized by its potential incompleteness and inconsistency with regard to the overall distributed system state which is due to the lack of any centralized coordination facility. In this paper, we introduce the use of long-term knowledge repositories for autonomous agents without sacrifying the autonomy of the agents and without introducing any central management facility. We compare our approach to an agent-enabled distributed SAT prover which makes only use of local system state information. In that problem solving application a given search tree is distributed dynamically by autonomous mobile agents implemented in pure Java. To demonstrate the profit of using knowledge repositories in general, we integrated our agent system Okeanos into our XML-based monitoring system Specto and the lightweight, distributed event-based middleware Mitto. Our cooperative approach does not conflict with the decentralized parallelization algorithm of the distributed SAT prover. Empirical results show that our approach can contribute to the performance of distributed symbolic computation. In this example, a load balancing subsystem is implemented taking the now available global information about the system state appropriately into account.KeywordsMobile AgentAutonomous AgentComputation NodeTuple SpaceKnowledge RepositoryThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

In the recent years, the society has suffered several changes in its ways and methods of consuming. The companies are providing services through the Internet to large number and uncertain customers. The customers require one-click service and their preferences changes dynamically. Autonomous decentralized database system (ADDS) is proposed as a system architecture in order to realize assurance in distributed database systems that support e-business. A background coordination technology, performed by an autonomous mobile agent, is devised to adapt the system to evolving situations. The system can achieve timeliness by allocating the information in advance among the sites that has different time constraints for updating. Further, the system is provided with an autonomous reconstruction technology to coordinate the heterogeneous requirements when the size of the system increases. Based on a autonomous restructure mobile agent (RMA), which autonomously determines how many sites and which sites should be restructured to improve the response time, this technique can adapt the system to the evolving situation dynamically. Thus, the assurance of the system can be maintained. A simulation shows the effectiveness of the proposed technology.

This article presents a comprehensive analysis of automated security configuration management for enterprise networking products, addressing the growing challenges in maintaining secure network configurations across complex modern infrastructures. It examines the evolution of network configuration management from traditional manual approaches to automated solutions, highlighting the critical role of automation in maintaining security posture and compliance. Through analysis of recent research and industry reports, the article explores the challenges posed by increasing network complexity, particularly in hybrid environments combining on-premises and cloud-based services. It investigates the components of automated configuration analysis systems, including scanning engines, security rule engines, and remediation recommendation systems. The article demonstrates the benefits of automated configuration management, including improved security consistency, reduced human error, enhanced proactive risk management, and streamlined compliance processes. It also provides detailed implementation considerations for organizations adopting automated configuration management solutions, emphasizing the importance of establishing clear security baselines, robust change management procedures, and regular updates to security rules and best practices.

New solutions based on SDN has been proposed for substations. SDN has represented a significant gain in network configuration and dynamic management. Despite the advantages of using SDN technology, security mechanisms to prevent substation attacks are needed. In order to avoid Denial-of- service attacks, this work proposes an IED authentication mechanism. The proposal was implemented with Mininet and RYU controller. Results indicate the effectiveness of the mechanism and also it shows the need for security implementation in substations.

This paper proposes a language called CLAIM for computational language for autonomous intelligent and mobile agents. CLAIM allows to design multi-agent systems that support both stationary and mobile agents. Agents designed thanks to CLAIM are endowed with cognitive capabilities (e.g. reasoning), are able to communicate with other agents (send and receive several kinds of messages) and are mobile. The primitives of mobility are inspired from the ambient calculus. The CLAIM language is supported by a multi-platform system (SyMPA) compliant with the standard MASIF (OMG specifications); i.e. agents can be distributed over several sites and can move from one to another with respect to MASIF specifications. This paper presents the main features of our language CLAIM and an example to illustrate its applicability.

Autonomous Mobile agents can be extremely useful in dynamic environments that require a continuous network connection. Network bandwidth reduction, protocol encapsulation, software automation and intelligence gathering can significantly affect Web Services. Integrating mobile agents with Web Services enables software adaptation to cope with a dynamic environment, automated system configuration and application requirement changes that are frequent in today''s ever fast-evolving technology. In this paper, we use a lightweight and efficient composition for mobile agents based Web services complying with Representational State Transfer (REST) principles for agent creation, migration, and control. The paper presents the overall concept and architecture of RESTful agents for web services. A security scheme is proposed for mobile agent security based on an infrastructure-less Identity Based Encryption (IBE) scheme integrated with Broadcast based Secure Mobile Agent Protocol (BROSMAP). A proof- of-concept implementation is provided.

This paper presents IMAP, a hybrid agent platform composed of several cooperating intelligent agents and mobile agents. IMAP is implemented in Java and Prolog. Java is used to implement the framework of the system, and in particular for supporting the communication between agents and mobility of agent, while Prolog is used to implement both adduction and derivation mechanisms. IMAP intends to independently employ the underlying derivation/adduction and mobility mechanism. In IMAP, intelligent agent and mobile agent can not only fully exploit individual virtue, but also cooperate to perform a task under a uniform platform. Intelligent agents in IMAP are equipped with hypothetical reasoning capabilities, performed by means of adduction: if the knowledge available to an agent is insufficient to solve a query, the agent could adduce new hypotheses. Each intelligent agent can accept queries from mobile agents by means of the interface module, each query is passed to the reasoning module of intelligent agent which performs a derivation and adduction in order to get an answer for mobile agent. IMAP also provides mobile agents a flexible and efficient coordination mechanism and a reliable migration mechanism, and supports persistence of agent state and agent security. Mobile agent's coordination mechanism exploits the advantages of the XML language and Linda-like coordination. This programmable Linda-like coordination mechanism suits the mobility and openness of the Internet application, XML standard for Internet data representation may guarantee a high-degree of interoperability between heterogeneous environments. The design and implementation key technologies of IMAP are described in this paper. An Internet based auction application example shows the suitability and the effectiveness of the IMAP, and its performance evaluation is also made. Finally, some conclusions and remarks are given.

The original Web did not support multiuser, interactive applications. This shortcoming is being studied, and several approaches have been proposed to use the Web as a platform for programming Internet applications. However, most existing approaches are oriented to centralized applications at servers, or local programs within clients. To overcome this deficit, we introduce PageSpace, that is a reference architecture for designing interactive multiagent applications. We describe how we control agents in PageSpace, using variants of the coordination language Linda to guide their interactions. Coordination technology is integrated with the standard Web technology and the programming language Java. Several kinds of agents live in the PageSpace: user interface agents, personal homeagents, agents that implement applications, and agents which interoperate with legacy systems. Within our architecture, it is possible to support fault-tolerance and mobile agents as well.

This paper designs and implements an Internet interface in an embedded POS system based on Webit, an embedded platform and interface for Internet of things which is a self-owned intellectual property of Lab. of Embedded Technology, Northeastern University, China. The Internet interface is designed and implemented on an 8-bit RISC micro-controller and Ethernet Network Interface Controller, with a real-time OS – WebitOS 2.0 strictly conforming to TCP/IP protocol requirements. Then experiments of testing functions and the performance of the embedded POS system are performed. And results show that the POS system based on Webit has a practical application value with properties such as low cost, and capabilities of simple network configuration and remote management.

With the continuous development of information and communication network technology, the number of devices in the network and the running data are increasing geometrically, which brings certain challenges to network configuration, operation and maintenance and management. At present, with the vigorous development of artificial intelligence technology, the concept of intelligent operation and maintenance came into being. The construction of hybrid network knowledge graph is an important part of intelligent operation and maintenance, and hybrid network entity extraction is a key step in its construction. Therefore, in order to effectively identify hybrid network entities, this paper proposes hybrid network entity extraction algorithm based on attention mechanism. Using the multi-head attention mechanism combined with the bidirectional long and short-term memory network and CRF, the accuracy of the neural network model is further improved. In order to verify the effectiveness of the method, we compare the improved algorithm in this paper with the existing classical algorithms and literature algorithms. The experiments show that the algorithm in this paper has certain effectiveness and superiority.

Visual Information Management for Network Configuration

This paper presents the evaluation of the image segmentation capabilities of a mobile robot agent based on a Google Android Smartphone. The mobile agent was designed to operate autonomously in an environment inspired in a soccer game. The pixel-based color image segmentation capabilities was performed by testing different two-dimensional look up tables created from two-dimensional color histograms of the objects appearing in the scenario. The best segmentation alternative was obtained when using of a two-dimensional look up table based on the H (hue) and V (value) color image description. The final conclusion is that a Google Android Smartphone has enough potential to define an autonomous mobile robot agent and play a game that requires color-based image segmentation capabilities.Keywordssegmentationmobile robot agentAndroidSmartphone

Advanced configuration management systems require explicit representations of various kinds of knowledge. Besides the classical requirements of keeping track of which component versions have been used to build a system, the knowledge that has led to the selection of these versions and the knowledge of compatibility rules between versions are essential to perform many configuration management functions,. A description is given of the languages provided to express version selections in terms of queries and compatibility rules in the system, emphasizing the knowledge representation issues involved here. It is illustrated how queries can be used to represent various aspects of the development methods and to customize the system. An outline is given of the consistency verification technique provided to detect automatically inconsistencies in the rule base or among the assumptions of different developers. >