2022 18th International Conference on Network and Service Management (CNSM)最新文献_第5页

FlexiCast: A Structure-Adaptive Protocol for Efficient Data-Sharing in IoT FlexiCast:物联网中高效数据共享的结构自适应协议

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9964962

Madhav Tummula, Manish Kausik H, S. Saha

{"title":"FlexiCast: A Structure-Adaptive Protocol for Efficient Data-Sharing in IoT","authors":"Madhav Tummula, Manish Kausik H, S. Saha","doi":"10.23919/CNSM55787.2022.9964962","DOIUrl":"https://doi.org/10.23919/CNSM55787.2022.9964962","url":null,"abstract":"IoT-technology is gaining a wide popularity over a large range of applications including not only monitoring of structures but also management and control of smart-systems. An IoT-system, in general, is composed of a number of IoT-devices which form a wireless decentralized setting as they get installed over a specific area to serve a particular purpose. The structure of the underlying wireless network depends on the structure of the target where the system gets deployed and hence, widely varies based on the exact application. Such structural variations often have an impact on the performance of the underlying IoT-protocols. Unfortunately most of the network protocols do not take care of such issues explicitly. For instance, although there have been quite significant development in the data-sharing protocols, especially with the advent of Synchronous-Transmission (ST), most of them are designed without considering the variation in the structural formation of the base networks. These protocols are tested over either in small scale simulated networks or in testbed settings bearing fixed/homogeneous structures. In this work, we demonstrate that the property of self-adaptability in an IoT-system can enable it not only to run faster but also save substantial energy which is an extremely important issue in the context of low-power system, in general. In particular, we design and implement a flexible and structure-adaptive many-to-many data-sharing protocol FlexiCast. Through extensive experiments under emulation-settings and IoT-testbeds we demonstrate that FlexiCast performs upto 49% faster and consumes upto 53% lesser energy compared to the case when it does not adapt to the network structure.","PeriodicalId":232521,"journal":{"name":"2022 18th International Conference on Network and Service Management (CNSM)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128928247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Scope-based Flow Monitoring to Improve Traffic Analysis in Programmable Networks 基于范围的流量监测改进可编程网络中的流量分析

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9964741

Christoph Hardegen

{"title":"Scope-based Flow Monitoring to Improve Traffic Analysis in Programmable Networks","authors":"Christoph Hardegen","doi":"10.23919/CNSM55787.2022.9964741","DOIUrl":"https://doi.org/10.23919/CNSM55787.2022.9964741","url":null,"abstract":"Flow monitoring allows to obtain an aggregated network traffic view that can be leveraged for subsequent analysis. Since network management tasks like flow-based traffic classification or prediction benefit from broader data views, the flow tracking scope used to export required traffic metadata can be enlarged: First, coherent packet streams can not only be monitored in a unidirectional but also bidirectional context that combines interrelated forward and backward direction views. Second, time-based subflow management for both contexts separates observed packet streams into consecutive windows covering a particular fraction to gain higher data granularity. To support these diversified traffic views in combination with variable feature sets for demand-driven data export serving different traffic analysis tasks, flow tracking and export strategies are required to operate in a dynamic manner. This paper proposes a flow monitoring approach enabling to track the four aforementioned scopes while adapting timeout-based data export operating on programmable switches. A multi-level system architecture and an adaptive protocol ensure flexible sharing and analysis of data records. Evaluations show that exported data can be used to improve analysis outcomes, whereby the considered data scope affects achieved accuracy but also the monitoring overhead.","PeriodicalId":232521,"journal":{"name":"2022 18th International Conference on Network and Service Management (CNSM)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124754333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

eBPF Programming Made Easy with eCLAT eBPF编程使eCLAT变得容易

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9964569

A. Mayer, L. Bracciale, Paolo Lungaroni, P. Loreti, S. Salsano, Giuseppe Bianchi

引用次数: 1

PTP Security Measures and their Impact on Synchronization Accuracy PTP安全措施及其对同步精度的影响

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9964658

F. Rezabek, Max Helm, Tizian Leonhardt, G. Carle

{"title":"PTP Security Measures and their Impact on Synchronization Accuracy","authors":"F. Rezabek, Max Helm, Tizian Leonhardt, G. Carle","doi":"10.23919/CNSM55787.2022.9964658","DOIUrl":"https://doi.org/10.23919/CNSM55787.2022.9964658","url":null,"abstract":"The Precision Time Protocol (PTP) synchronizes clocks in a network with high precision. The protocol finds use in many areas, such as smart manufacturing, intra-vehicular networks, and critical infrastructure. It becomes clear that striving for security is an important goal. If an attacker succeeds in disturbing the network synchronization, the impact can result in a cascading set of failures. Unfortunately, neither the previous two IEEE standards for PTP, nor the popular implementation linuxptp, feature or implement sufficient security options.This work focuses on implementing the security extensions for PTP based on the latest PTP standard IEEE 1588-2019 to minimize the threat of attacks and their possible impact. We provide a detailed analysis on PTP synchronicity and security. Based on that, we design and implement software-only tooling to quantify the PTP performance using commercial off-the-shelf hardware and open-source solutions on a linear topology with four to nine hops.The measurements compare the End-to-End (E2E) and Peer-to-Peer (P2P) delay calculation modes and the usage of Transparent Clocks (TC) in parts of the network. Both E2E and P2P show visible degradation of clock synchronization with each hop and standard deviations of 118.6 to 571 ns. The TCs perform better, demonstrating a standard deviation between 90 to 140 ns on four to nine hops. We evaluate different logSyncInterval values corresponding to different PTP profiles and do not observe a major impact on the clock behavior caused by the extensions. The measurement precision of the system is within ±40 ns.Our evaluation of the newly implemented security extensions to linuxptp shows that the security extensions do not have a significant impact on the clock synchronization and our approach is a feasible addition to PTP. Besides, our contributions can aid network managers in assessing their PTP synchronicity systematically.","PeriodicalId":232521,"journal":{"name":"2022 18th International Conference on Network and Service Management (CNSM)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124607016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Network traffic classification based on periodic behavior detection 基于周期行为检测的网络流分类

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9964556

Josef Koumar, T. Čejka

引用次数: 3

A Realistic Open-Data-based Cost Model for Wireless Backhaul Networks in Rural Areas 基于开放数据的农村无线回程网络成本模型

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9964562

Gabriele Gemmi, Llorenç Cerdà-Alabern, L. Maccari

引用次数: 0

Scalable Data Plane Caching for Kubernetes Kubernetes的可扩展数据平面缓存

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9964497

Stefanos G. Sagkriotis, D. Pezaros

引用次数: 0

Intent-Driven Path State Monitoring to Enable Centralized State-Aware Flow Steering 意图驱动的路径状态监控，以实现集中的状态感知流转向

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9965141

Christoph Hardegen

{"title":"Intent-Driven Path State Monitoring to Enable Centralized State-Aware Flow Steering","authors":"Christoph Hardegen","doi":"10.23919/CNSM55787.2022.9965141","DOIUrl":"https://doi.org/10.23919/CNSM55787.2022.9965141","url":null,"abstract":"Running state monitoring for network switches and links enables the derivation of a path-based data view. Thereby, various monitoring intents like utilization and latency awareness can be targeted during data collection. Whereas each of these objectives relies on a particular set of state metrics, different monitoring methods may be run to gather the data basis serving as decision input for subsequent analysis purposes. In addition, path conditions have an impact on the state observed for individual packet streams being forwarded along a specific path. While path level state data is of relevance, e.g., to evaluate past load ratios in order to run state-aware and efficient path determination, flow level state helps to monitor flow experience conditions like achieved throughput or perceived latency, e.g., to track the compliance with flow-based requirements. This paper presents a modular architecture for path state monitoring that considers port counter query, network probing and in-band network telemetry as methods for demand-driven data collection and focuses on utilization and latency awareness as monitoring intents. State data is collected by a centralized controller in collaboration with distributed modules deployed in a switch’s data plane to run data tracking, wherefore programmable switches are used as operational basis to ensure a flexible monitoring protocol. Evaluations show that continuously collected data snapshots allow to track accurate path state trends that – w.r.t. path state-aware traffic steering – can be leveraged to improve flow-based load distribution across available path capacities and to resolve inefficiencies like imbalanced path load or congestion.","PeriodicalId":232521,"journal":{"name":"2022 18th International Conference on Network and Service Management (CNSM)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123675864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Zero-touch security automation mechanisms for edge NFV: the π-Edge approach 边缘NFV的零接触安全自动化机制:π-Edge方法

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9964999

Alexandros Valantasis, Nikos Psaromanolakis, V. Theodorou

{"title":"Zero-touch security automation mechanisms for edge NFV: the π-Edge approach","authors":"Alexandros Valantasis, Nikos Psaromanolakis, V. Theodorou","doi":"10.23919/CNSM55787.2022.9964999","DOIUrl":"https://doi.org/10.23919/CNSM55787.2022.9964999","url":null,"abstract":"The shift towards distributed computing architectures that push data storage and processing to the edge of the network, is resulting into a convergence of cloud-computing services and next generation mobile network technologies. In order to uniformly manage resources and services in the formed cloud/core to edge/devices continuum and to handle the diversity of multi-party underlying infrastructure technologies in a latency-aware, reliable and trustworthy fashion, management automation has become more crucial than ever. In this work, we present the security analytics mechanisms of the π-Edge platform–our edge management platform that embodies zero-touch automation features for interoperability, Quality of Service (QoS) assurance, resilience and trust. To this end, we introduce a declarative NFV MANO Information Model (IM) and methods for automatically enhancing Network Slices at the edge, with security services that i) continuously monitor user-plane traffic on the links between Virtual Network Functions (VNFs), ii) detect possible network vulnerabilities or malicious behaviour and iii) apply relevant actions to effectively observe and mitigate identified threats. The implementation of such mechanisms is evaluated through experimentation on a use case of DDoS attacking scenarios, showcasing the usability and the benefits of our proposed solution.","PeriodicalId":232521,"journal":{"name":"2022 18th International Conference on Network and Service Management (CNSM)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116449374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Real Time Local Re-Routing to limit Queuing Delay exploiting SRv6 and Extensible In-Band Processing 利用SRv6和可扩展带内处理来限制队列延迟的实时本地重路由

2022 18th International Conference on Network and Service Management (CNSM) Pub Date : 2022-10-31 DOI: 10.23919/CNSM55787.2022.9965146

Marco Polverini, D. Aureli, A. Cianfrani, F. Lavacca, M. Listanti

引用次数: 1