{"title":"基于SDN和ForCES的最优网络拓扑发现","authors":"George Tarnaras, E. Haleplidis, S. Denazis","doi":"10.1109/NETSOFT.2015.7116181","DOIUrl":null,"url":null,"abstract":"Software-defined Networking proposes an alternative paradigm on network programmability based on the separation of control and forwarding planes. Discovering network elements in a dynamic and optimized fashion, able to cope with the ever-growing network traffic, is a key requirement for SDN networks, in order to ensure a data center's robustness and manageability. OpenFlow's approach for creating the topology map is by exchanging LLDP frames between the controller and the forwarding elements. This paper proposes a better usage of LLDP by taking advantage of existing hardware capabilities to extract information directly from the data plane to the control plane in order to construct a dynamic and automatic topology discovery algorithm. Following this procedure to obtain the topology map and using the IETF's ForCES framework, we managed to model a generic method for extracting the required LLDP information from the datapath to the controller.","PeriodicalId":426452,"journal":{"name":"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"29","resultStr":"{\"title\":\"SDN and ForCES based optimal network topology discovery\",\"authors\":\"George Tarnaras, E. Haleplidis, S. Denazis\",\"doi\":\"10.1109/NETSOFT.2015.7116181\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Software-defined Networking proposes an alternative paradigm on network programmability based on the separation of control and forwarding planes. Discovering network elements in a dynamic and optimized fashion, able to cope with the ever-growing network traffic, is a key requirement for SDN networks, in order to ensure a data center's robustness and manageability. OpenFlow's approach for creating the topology map is by exchanging LLDP frames between the controller and the forwarding elements. This paper proposes a better usage of LLDP by taking advantage of existing hardware capabilities to extract information directly from the data plane to the control plane in order to construct a dynamic and automatic topology discovery algorithm. Following this procedure to obtain the topology map and using the IETF's ForCES framework, we managed to model a generic method for extracting the required LLDP information from the datapath to the controller.\",\"PeriodicalId\":426452,\"journal\":{\"name\":\"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)\",\"volume\":\"7 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-04-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"29\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/NETSOFT.2015.7116181\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NETSOFT.2015.7116181","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
SDN and ForCES based optimal network topology discovery
Software-defined Networking proposes an alternative paradigm on network programmability based on the separation of control and forwarding planes. Discovering network elements in a dynamic and optimized fashion, able to cope with the ever-growing network traffic, is a key requirement for SDN networks, in order to ensure a data center's robustness and manageability. OpenFlow's approach for creating the topology map is by exchanging LLDP frames between the controller and the forwarding elements. This paper proposes a better usage of LLDP by taking advantage of existing hardware capabilities to extract information directly from the data plane to the control plane in order to construct a dynamic and automatic topology discovery algorithm. Following this procedure to obtain the topology map and using the IETF's ForCES framework, we managed to model a generic method for extracting the required LLDP information from the datapath to the controller.