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Among the schemes proposed for failure recovery in software-defined networks, installing backup paths in advance is considered to be an effective approach to reduce the recovery latency. However, the pre-installation poses undue storage overheads on flow tables. In this paper, we propose a customized and cost-efficient backup scheme, which achieves fast recovery from any single-link failure. We introduce...
The Internet global routing tables have been expanding at a dramatic and increasing rate. In this paper, we propose the next hop of strict partial order to construct and aggregate the Nexthop-Selectable FIB (NSFIB). We control the path stretch caused by NSFIB aggregation by setting an upper limit number of next hops. According to our simulation, our aggregation algorithms shrink the FIB to 5–15%,...
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