MicroNF : An Efficient Framework for Enabling Modularized Service Chains in NFV
IEEE Journal on Selected Areas in Communications(2019)
摘要
The modularization of service function chains (SFCs) in network function virtualization (NFV) could introduce significant performance overhead and resource efficiency degradation due to introducing frequent packet transfer and consuming much more hardware resources. In response, we exploit the
reusability
,
lightweightness
, and
individual scalability
features of
elements
in modularized SFCs (MSFCs) and propose
MicroNF
, an efficient framework for MSFC in NFV.
MicroNF
addresses the performance overhead and resource efficiency problems in three ways. First,
MicroNF
graph constructor reuses the processing results of elements from different NFs and reconstructs the MSFC after modularization to shorten the chain latency. Second, optimized placer pays attention to the problem of which elements to consolidate and provides a performance-aware placement algorithm to place MSFCs compactly and optimize the global packet transfer cost. Third,
MicroNF
individual scaler innovatively introduces a
push-aside scaling up
strategy to avoid degrading performance and taking up new CPU cores. To support MSFC reusing and consolidation,
MicroNF
also designs a high-performance infrastructure to efficiently forwarding packets with consistency ensured and to automatically scheduling elements with fairness ensured when the elements are consolidated on the CPU core. Our evaluation results show that
MicroNF
achieves significant performance improvement and efficient resource utilization on several metrics.
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关键词
Noise measurement,Hardware,Runtime,Elasticity,Sun,Virtualization,Middleboxes
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