分析当前新一轮科技革命和产业变革背景下城域网(Metropolitan Area Network,MAN)中不同用户的特征和对网络的需求,给出了通过引入边缘云将部分计算能力下沉到更靠近用户的地方,提供网络的灵活定制和确定性服务保障,满足不同场景和用户...分析当前新一轮科技革命和产业变革背景下城域网(Metropolitan Area Network,MAN)中不同用户的特征和对网络的需求,给出了通过引入边缘云将部分计算能力下沉到更靠近用户的地方,提供网络的灵活定制和确定性服务保障,满足不同场景和用户需求的建议。通过探讨当前城域网的现状,指出在现网引入边缘云时存在的主要问题,提出一种利用光交叉连接技术构建波长资源池来实现光电协同、灵活弹性连接的面向云网融合的全光城域网架构,最后介绍了基于此构架的边缘云业务承载方案。展开更多
In the internet protocol（IP） over multi-granular optical switch network （IP/MG-OXC）, the network node is a typical multilayer switch comprising several layers, the IP packet switching （PXC） layer, wavelength swi...In the internet protocol（IP） over multi-granular optical switch network （IP/MG-OXC）, the network node is a typical multilayer switch comprising several layers, the IP packet switching （PXC） layer, wavelength switching （WXC） layer and fiber switching （FXC） layer. This network is capable of both IP layer grooming and wavelength grooming in a hierarchical manner. Resource provisioning in the multi-granular network paradigm is called hierarchical grooming problem. An integer linear programming （ILP） model is proposed to formulate the problem. An iterative heuristic approach is developed for solving the problem in large networks. Case study shows that IP/MG-OXC network is much more extendible and can significantly save the overall network cost as compared with IP over wavelength division multiplexing network.展开更多
文摘分析当前新一轮科技革命和产业变革背景下城域网(Metropolitan Area Network,MAN)中不同用户的特征和对网络的需求,给出了通过引入边缘云将部分计算能力下沉到更靠近用户的地方,提供网络的灵活定制和确定性服务保障,满足不同场景和用户需求的建议。通过探讨当前城域网的现状,指出在现网引入边缘云时存在的主要问题,提出一种利用光交叉连接技术构建波长资源池来实现光电协同、灵活弹性连接的面向云网融合的全光城域网架构,最后介绍了基于此构架的边缘云业务承载方案。
基金Sponsored by Agency for Singapore Technology and Advance Research(RGM01/16)
文摘In the internet protocol（IP） over multi-granular optical switch network （IP/MG-OXC）, the network node is a typical multilayer switch comprising several layers, the IP packet switching （PXC） layer, wavelength switching （WXC） layer and fiber switching （FXC） layer. This network is capable of both IP layer grooming and wavelength grooming in a hierarchical manner. Resource provisioning in the multi-granular network paradigm is called hierarchical grooming problem. An integer linear programming （ILP） model is proposed to formulate the problem. An iterative heuristic approach is developed for solving the problem in large networks. Case study shows that IP/MG-OXC network is much more extendible and can significantly save the overall network cost as compared with IP over wavelength division multiplexing network.
