公开(公告)号：US5436902A

公开(公告)日：1995-07-25

申请号：US223209

申请日：1994-04-05

申请人： Robert P. McNamara ,  Amar Amar

发明人： Robert P. McNamara ,  Amar Amar

IPC分类号： H04L12/46 ,  H04L12/66

CPC分类号： H04L12/4604

摘要： A telecommunication bridge system uses synchronized arbitration in a portion of a frame of a Radio Frequency (RF) subsystem and is transparent to Ethernet layer protocols and Ethernet-type packets in order to increase bandwidth utilization and effectively extend Ethernet networks to metropolitan-area-wide application. The telecommunication bridge system comprises an enhanced Ethernet network interface subsystem coupled to a conventional Ethernet medium and a control subsystem including an RF modem, in turn coupled to a frame synchronized RF medium in a metropolitan-sized network. On one side the control subsystem emulates all Ethernet layer protocols and on the other side conducts a prioritized arbitration scheme during only a portion of a time division multiplexed frame, the remainder of the frame for carrying a payload of unmodified packets to other bridges. Included in the controller subsystem is a two-way Manchester/NRZ Code converter, its own intelligence and packet buffering using a microprocessor and random access memory.

摘要翻译： 电信桥系统在射频（RF）子系统的帧的一部分中使用同步仲裁，并且对以太网层协议和以太网类型分组是透明的，以便增加带宽利用率，并有效地将以太网网络扩展到大都市区域 应用。 电信桥系统包括耦合到常规以太网介质的增强型以太网网络接口子系统和包括RF调制解调器的控制子系统，其又耦合到大都市网络中的帧同步RF介质。 一方面，控制子系统模拟所有以太网层协议，另一方面在仅在时分多路复用帧的一部分期间执行优先级仲裁方案，用于将未修改分组的有效载荷携带到其他网桥的剩余帧。 控制器子系统中包含一个双向曼彻斯特/ NRZ代码转换器，其自身的智能和数据包缓冲使用微处理器和随机存取存储器。

公开(公告)号：US06947416B1

公开(公告)日：2005-09-20

申请号：US09736967

申请日：2000-12-13

申请人： Cheng-Lee Nee ,  Anthony Wu ,  Quingming Ma ,  Amar Amar ,  Chongzhen Wang ,  Winston Yuan ,  Minglei Yang

发明人： Cheng-Lee Nee ,  Anthony Wu ,  Quingming Ma ,  Amar Amar ,  Chongzhen Wang ,  Winston Yuan ,  Minglei Yang

IPC分类号： H04L12/56 ,  H04L3/16

CPC分类号： H04W28/065 ,  H04L49/90

摘要： A router in a network comprises an interface system for receiving packets and has a plurality of channels and a plurality of framing service engines. The router is configured to assign the channels to individual framing service engines for framing services. The router has a channel manager for performing the assignments, and the channel manager is configured to receive and use data about the framing service engines. The router further comprises a framing memory for buffering communication between the interface system and the plurality of framing service engines. At least one framing service engine is configured to frame packets and at least one framing service engine is configured to deframe packets, and the framing service engines may be configured to operate on AHDLC packets. The router can be used with an interface system that comprises a plurality of network interfaces terminating a plurality of point to point links.

摘要翻译： 网络中的路由器包括用于接收分组并具有多个信道和多个成帧服务引擎的接口系统。 路由器被配置为将信道分配给用于成帧服务的各个成帧服务引擎。 路由器具有用于执行分配的信道管理器，并且信道管理器被配置为接收和使用关于成帧服务引擎的数据。 路由器还包括用于缓冲接口系统和多个成帧服务引擎之间的通信的成帧存储器。 至少一个成帧服务引擎被配置为帧分组，并且至少一个成帧服务引擎被配置为对数据包进行deframe，并且成帧服务引擎可以被配置为对AHDLC分组进行操作。 路由器可以与包括终止多个点对点链路的多个网络接口的接口系统一起使用。