期刊
IEEE COMMUNICATIONS LETTERS
卷 24, 期 6, 页码 1299-1303出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2020.2979072
关键词
Steiner trees; Synchronization; Computational modeling; Resilience; Switches; Standards; Software defined networks; inter-controller communication; network state synchronization; controller placement; steiner tree model
资金
- Singapore MoE AcRF Tier-2 [MOE2015-T2-2-116]
- NUS WBS [R-263-000-C17-112]
In a multi-controller SDN, the network state is replicated or distributed between the controllers requiring repeated synchronization. This synchronization cost depends on controller locations, as well as needs to be low and resilient to network failures. Leveraging a Steiner tree-based inter-controller latency model, a multi-objective integer linear program is presented to deduce the controller placement optimizing (a) synchronization cost in failure-free scenarios, and, (b) resilience against single-link failures. The proposed approach incurs low computational complexity and post-failure network reconfiguration cost, while achieving near-optimal post-failure synchronization cost. We extensively evaluate the proposed model over real networks, and demonstrate its effectiveness.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据