Pub Date : 2018-08-01DOI: 10.1109/RNDM.2018.8489832
Andrzej Kamisiński
Due to increasing requirements related to quality of service and network dependability, several IP Fast-Reroute mechanisms have been designed to limit the consequences of one or more simultaneous failures in routed computer and communication networks. However, the existing mechanisms vary in terms of the underlying concept, the maximum number of handled failures in the network, the employed signaling methods, and the operation mode. In this paper, a high-level overview of the main common features and conceptual differences of the selected IP Fast-Reroute solutions and other related mechanisms is presented and discussed, as the first step towards a more extensive and in-depth analysis. In addition, future research directions are proposed in the context of the selected challenges identified in existing networks.
{"title":"Evolution of IP Fast-Reroute Strategies","authors":"Andrzej Kamisiński","doi":"10.1109/RNDM.2018.8489832","DOIUrl":"https://doi.org/10.1109/RNDM.2018.8489832","url":null,"abstract":"Due to increasing requirements related to quality of service and network dependability, several IP Fast-Reroute mechanisms have been designed to limit the consequences of one or more simultaneous failures in routed computer and communication networks. However, the existing mechanisms vary in terms of the underlying concept, the maximum number of handled failures in the network, the employed signaling methods, and the operation mode. In this paper, a high-level overview of the main common features and conceptual differences of the selected IP Fast-Reroute solutions and other related mechanisms is presented and discussed, as the first step towards a more extensive and in-depth analysis. In addition, future research directions are proposed in the context of the selected challenges identified in existing networks.","PeriodicalId":340686,"journal":{"name":"2018 10th International Workshop on Resilient Networks Design and Modeling (RNDM)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132226992","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}
Pub Date : 2018-08-01DOI: 10.1109/RNDM.2018.8489840
Wenjing Wang, J. Doucette
Path restoration is a well-studied end-to-end restoration mechanism, but prior work addressing dual-failure restoration and availability is limited. We develop a new algorithmic approach and constituent ILP model to calculate dual-failure availability in a path-restorable network designed for full single-failure survivability. We also investigate the impact extra spare capacity investment has on the network’s availability.
{"title":"On the Availability and Spare Capacity Requirements of Path-Restorable Transport Networks","authors":"Wenjing Wang, J. Doucette","doi":"10.1109/RNDM.2018.8489840","DOIUrl":"https://doi.org/10.1109/RNDM.2018.8489840","url":null,"abstract":"Path restoration is a well-studied end-to-end restoration mechanism, but prior work addressing dual-failure restoration and availability is limited. We develop a new algorithmic approach and constituent ILP model to calculate dual-failure availability in a path-restorable network designed for full single-failure survivability. We also investigate the impact extra spare capacity investment has on the network’s availability.","PeriodicalId":340686,"journal":{"name":"2018 10th International Workshop on Resilient Networks Design and Modeling (RNDM)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133324351","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}
Pub Date : 2018-08-01DOI: 10.1109/RNDM.2018.8489784
O. Dobrijevic, C. Natalino, M. Furdek, Haris Hodzic, M. Dzanko, L. Wosinska
Communication networks are embracing the software defined networking (SDN) paradigm. Its architectural shift assumes that a remote SDN controller (SDNC) in the control plane is responsible for configuring the underlying devices of the forwarding plane. In order to support flexibility-motivated network slicing, SDN-based networks employ another entity in the control plane, a network hypervisor (NH). This paper first discusses different protection strategies for the control plane with NHs and presents the corresponding availability models, which assume possible failures of links and nodes in the forwarding plane and the control plane. An analysis of these protection alternatives is then performed so as to compare average control plane availability, average path length for the control communication that traverses NH, and infrastructure resources required to support them. Our results confirm the intuition that the NH introduction generally results in a reduction of the control plane availability, which stresses the need for appropriate protection. However, the availability achieved by each of the considered strategies is impacted differently by the node availability and the link failure probability, thus calling for a careful selection that is based on the infrastructure features.
{"title":"Another Price to Pay: An Availability Analysis for SDN Virtualization with Network Hypervisors","authors":"O. Dobrijevic, C. Natalino, M. Furdek, Haris Hodzic, M. Dzanko, L. Wosinska","doi":"10.1109/RNDM.2018.8489784","DOIUrl":"https://doi.org/10.1109/RNDM.2018.8489784","url":null,"abstract":"Communication networks are embracing the software defined networking (SDN) paradigm. Its architectural shift assumes that a remote SDN controller (SDNC) in the control plane is responsible for configuring the underlying devices of the forwarding plane. In order to support flexibility-motivated network slicing, SDN-based networks employ another entity in the control plane, a network hypervisor (NH). This paper first discusses different protection strategies for the control plane with NHs and presents the corresponding availability models, which assume possible failures of links and nodes in the forwarding plane and the control plane. An analysis of these protection alternatives is then performed so as to compare average control plane availability, average path length for the control communication that traverses NH, and infrastructure resources required to support them. Our results confirm the intuition that the NH introduction generally results in a reduction of the control plane availability, which stresses the need for appropriate protection. However, the availability achieved by each of the considered strategies is impacted differently by the node availability and the link failure probability, thus calling for a careful selection that is based on the infrastructure features.","PeriodicalId":340686,"journal":{"name":"2018 10th International Workshop on Resilient Networks Design and Modeling (RNDM)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114663396","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}
Pub Date : 2018-08-01DOI: 10.1109/RNDM.2018.8489818
Sugang Xu, N. Yoshikane, M. Shiraiwa, T. Tsuritani, Y. Awaji, N. Wada
For efficient post-disaster recovery, we investigate the approach for multicarrier collaboration to obtain and take advantage of more surviving resources in a broader range within the disaster area. In our approach, carriers can quickly recover the communication capability while satisfying the important traffic requirement (e.g., for victim relief) with further reduced recovery costs. To validate the feasibility of this approach, we firstly propose an architecture design and a six-phase process for both the construction and control of the multicarrier-collaboration-based emergency packet transport network. Through demonstration, we successfully validate that both carriers can benefit from the multicarrier-collaboration-based disaster recovery to fully take advantage of the surviving network resources. More importantly, with the collaboration between the carriers and a third-party organization, the confidential carrier topology information is strictly protected.
{"title":"Multicarrier-collaboration-based Emergency Packet Transport Network Construction in Disaster Recovery","authors":"Sugang Xu, N. Yoshikane, M. Shiraiwa, T. Tsuritani, Y. Awaji, N. Wada","doi":"10.1109/RNDM.2018.8489818","DOIUrl":"https://doi.org/10.1109/RNDM.2018.8489818","url":null,"abstract":"For efficient post-disaster recovery, we investigate the approach for multicarrier collaboration to obtain and take advantage of more surviving resources in a broader range within the disaster area. In our approach, carriers can quickly recover the communication capability while satisfying the important traffic requirement (e.g., for victim relief) with further reduced recovery costs. To validate the feasibility of this approach, we firstly propose an architecture design and a six-phase process for both the construction and control of the multicarrier-collaboration-based emergency packet transport network. Through demonstration, we successfully validate that both carriers can benefit from the multicarrier-collaboration-based disaster recovery to fully take advantage of the surviving network resources. More importantly, with the collaboration between the carriers and a third-party organization, the confidential carrier topology information is strictly protected.","PeriodicalId":340686,"journal":{"name":"2018 10th International Workshop on Resilient Networks Design and Modeling (RNDM)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116460746","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}
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