Management model of virtual circuit under service unit network is constructed and analyzed; Policies about how to manage virtual circuits and communication model based on virtual circuits under service unit network are deeply studied.3.
2.建立并分析服务元网络下的虚电路管理模型,研究服务元路由器的虚电路管理策略以及服务元网络的虚电路通信模型。
参考来源 - 基于服务元架构的软件路由器虚电路管理机制研究与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
Finally, it gives the program flow diagram of these processes in virtual circuits.
最后，给出了虚电路中实现这些进程的程序框图。
Topics summarized here include point-to-point links, circuit switching, packet switching, virtual circuits, dialup services, and WAN devices.
在这里概述的题目包括点对点链路，电路交换，分组包交换，虚电路，拨号服务，和WAN设备。
Typically, permanent virtual circuits are set up between multiple backbone switches and between switches and devices with heavy network traffic.
一般而言，永久性虚拟电路建在多个主干网交换机之间和交换机与网络信息流量大的设备之间。
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