Rate adjustable backplane and method for a telecommunications node
    1.
    发明授权
    Rate adjustable backplane and method for a telecommunications node 有权
    速率可调背板和电信节点的方法

    公开(公告)号:US06760327B1

    公开(公告)日:2004-07-06

    申请号:US09452829

    申请日:1999-12-01

    IPC分类号: H04L1228

    CPC分类号: H04L49/606 H04L12/6402

    摘要: A rate adjustable backplane includes a set of switch slots configured to receive one or more switch cards forming a switch core and a plurality of line slots each configured to receive a line card. A low speed bus couples the line slots to the set of switch slots. A high speed bus also couples the line slots to the set of switch slots. Each line slot includes a low speed connector coupled to the low speed bus and a high speed connector coupled to the high speed bus. The low speed connector is adapted to receive a mating connector of a line card to establish a low speed communication connection between the line card and the switch core. The high speed connector is adapted to receive a mating connector of the line card to establish a high speed link between the line card and the switch core.

    摘要翻译: 速率可调背板包括一组开关槽,其被配置为接收形成开关芯的一个或多个开关卡和多个配置成接收线卡的线槽。 低速总线将线路插槽连接到交换机插槽组。 高速总线也将线槽耦合到一组开关插槽。 每个线槽包括耦合到低速总线的低速连接器和耦合到高速总线的高速连接器。 低速连接器适于接收线路卡的匹配连接器,以在线路卡和交换机核心之间建立低速通信连接。 高速连接器适于接收线路卡的匹配连接器,以在线路卡和交换机核心之间建立高速链路。

    Fused switch core and method for a telecommunications node
    2.
    发明授权
    Fused switch core and method for a telecommunications node 有权
    用于电信节点的熔断开关核心和方法

    公开(公告)号:US06621828B1

    公开(公告)日:2003-09-16

    申请号:US09452759

    申请日:1999-12-01

    IPC分类号: H04J316

    摘要: A switch card for telecommunications node includes a shared memory operable to store traffic channels. A time slot interchanger (TSI) is coupled to a first bus and to the shared memory. The TSI is operable based on predefined switching instructions to access the shared memory to stored traffic channels received from the first bus and to retrieve traffic channels for transmission on the first bus. An asynchronous transfer mode (ATM) switch is operable to switch a traffic cell based on header information in the traffic cell. A traffic converter is operable to convert traffic channels retrieved from the shared memory to traffic cells for processing by a bus fuser and to convert traffic cells to traffic channels for storage in the shared memory. The bus fuser is coupled to the shared memory through the traffic converter, the ATM switch, and a second bus. The bus fuser is operable to receive a traffic cell from each one of the traffic converter, the ATM switch, and the second bus and to route the traffic cell to another one of the traffic converter, the ATM switch, and the second bus.

    摘要翻译: 用于电信节点的交换卡包括可操作以存储业务信道的共享存储器。 时隙交换器(TSI)耦合到第一总线和共享存储器。 TSI可以基于预定义的切换指令来操作,以将共享存储器存储到从第一总线接收的存储的业务信道,并且检索用于在第一总线上传输的业务信道。 异步传输模式(ATM)交换机可操作以基于业务信元中的报头信息来切换业务信元。 业务转换器可操作以将从共享存储器检索的业务信道转换成业务信元以供总线定影器处理,并将业务信元转换为业务信道以存储在共享存储器中。 总线定影器通过流量转换器,ATM交换机和第二总线耦合到共享存储器。 总线定影器可操作以从业务转换器,ATM交换机和第二总线中的每一个接收业务信元,并将业务小区路由到业务转换器,ATM交换机和第二总线中的另一个。

    Method and system for protection switching in a telecommunications network
    4.
    发明授权
    Method and system for protection switching in a telecommunications network 有权
    电信网络中保护倒换的方法和系统

    公开(公告)号:US06674755B1

    公开(公告)日:2004-01-06

    申请号:US09607771

    申请日:2000-06-30

    IPC分类号: H04M1106

    CPC分类号: H04L45/22 H04L45/10

    摘要: A method for protection switching in a telecommunications network is provided that includes receiving a plurality of primary and secondary sub-streams. Each primary sub-stream corresponds to a redundant secondary sub-stream. Each sub-stream has an associated priority level. Protection switching is provided for the sub-streams based on the priority levels.

    摘要翻译: 提供了一种用于在电信网络中进行保护切换的方法,其包括接收多个主要和次要子流。 每个主子流对应于冗余辅助子流。 每个子流具有相关联的优先级。 基于优先级为子流提供保护切换。

    Transport interface for performing protection switching of telecommunications traffic
    5.
    发明授权
    Transport interface for performing protection switching of telecommunications traffic 有权
    用于执行电信业务保护倒换的传输接口

    公开(公告)号:US06188667B1

    公开(公告)日:2001-02-13

    申请号:US09245806

    申请日:1999-02-05

    IPC分类号: H04L1224

    摘要: A transport interface (10) provides add drop multiplex functionality and termination requirements for the transportation of network traffic. The transport interface (10) includes high speed units (12), broadband interfaces (16), and SONET formatters (18). Each high speed unit (12), broadband interface (16), and SONET formatter has redundant protection pairs (A and B). The high speed units (12), broadband interfaces (16), and SONET formatters (18) communicate with each other by in-band datalinks (40). The redundant protection pairs (A and B) communicate with one another by protection pair datalinks (42). The in-band datalinks (40) and the protection pair datalinks (42) provide protection switching within the transport interface (10) in the event of component failure. The in-band datalinks (40) are generated out of available or consumed bytes within either a section overhead (32) or a line overhead (34) of SONET OC-N frame (30). The protection pair datalinks (42) provide communication capability over a common control communications interface. The in-band datalinks (40) and the protection pair data links (42) work together to provide a smooth transition from one component to another in the event of a protection switch.

    摘要翻译: 传输接口(10)为网络流量的传输提供添加分支复用功能和终止要求。 传输接口(10)包括高速单元(12),宽带接口(16)和SONET格式化器(18)。 每个高速单元(12),宽带接口(16)和SONET格式化器具有冗余保护对(A和B)。 高速单元(12),宽带接口(16)和SONET格式化器(18)通过带内数据链路(40)彼此通信。 冗余保护对(A和B)通过保护对数据链路彼此通信(42)。 在组件故障的情况下,带内数据链路(40)和保护对数据链路(42)提供传输接口(10)内的保护切换。 在SONET OC-N帧(30)的段开销(32)或行开销(34)之内,可用或消耗的字节产生带内数据链路(40)。 保护对数据链路(42)通过公共控制通信接口提供通信能力。 在保护开关的情况下,带内数据链路(40)和保护对数据链路(42)一起工作以提供从一个组件到另一个组件的平滑过渡。

    Multi-rate transmission system
    6.
    发明授权
    Multi-rate transmission system 失效
    多速率传输系统

    公开(公告)号:US5867543A

    公开(公告)日:1999-02-02

    申请号:US625716

    申请日:1996-03-29

    IPC分类号: H04J3/06 H04Q11/04

    摘要: A multi-rate transmission system (10) includes a receive section (12) and a transmit section (14). The receive section includes a receiver (16), a clock recovery unit (18), and a serial to parallel converter (20) all operating at a first clock rate (M). The receiver (16) also has a frame recovery unit (22) that operates at any of a plurality of clock rates, including the first clock rate (M) and a second clock rate (M/n). When the frame recovery unit operates at the first clock rate (M), frame information received by the receiver section (12) has unique bits occupying each bit position associated with each clock pulse of the first clock rate (M). When the frame recovery unit (22) operates at the second clock rate (M/n), each unique bit of the frame information occupies a number of bit positions according to a ratio of the first clock rate (M) to the second clock rate (M/n). Similar operation occurs with respect to a frame formatter (30) in the transmit section (14) of the multi-rate transmission system (10).

    摘要翻译: 多速率传输系统(10)包括接收部分(12)和传输部分(14)。 接收部分包括全部以第一时钟速率(M)操作的接收器(16),时钟恢复单元(18)和串行到并行转换器(20)。 接收机(16)还具有帧恢复单元(22),其以包括第一时钟速率(M)和第二时钟速率(M / n)的多个时钟速率中的任何一个操作。 当帧恢复单元以第一时钟速率(M)操作时,由接收器部分(12)接收的帧信息具有占据与第一时钟速率(M)的每个时钟脉冲相关联的每个位位置的唯一位。 当帧恢复单元(22)以第二时钟速率(M / n)操作时,帧信息的每个唯一位根据第一时钟速率(M)与第二时钟速率(M)的比率占用多个比特位置 (M / n)。 对于多速率传输系统(10)的发送部分(14)中的帧格式器(30),发生相似的操作。

    Data packet transmission system and method
    7.
    发明授权
    Data packet transmission system and method 失效
    数据包传输系统及方法

    公开(公告)号:US6154460A

    公开(公告)日:2000-11-28

    申请号:US866884

    申请日:1997-05-30

    IPC分类号: H04L12/56

    摘要: A data packet transmission system is disclosed. The system comprises a processor (178) having a memory block (202) and a communication controller (204). The processor (178) stores a data packet (205), a buffer descriptor array (206), and a header (208) in the memory block (202). The buffer descriptor array (206) has a first plurality of elements (206b, 206d, 206f, 206h, 206i), each indicating a respective segment (205a-205e) of the data packet (206), and a second plurality of elements (206a, 206c, 206e, 206g), each indicating the header (208). The processor (178) supplies the location of the buffer descriptor array (206) to the communication controller (204). In response, the communication controller (204) transmits a plurality of cells (222, 224, 226, 228), each cell including the header (208) and a segment of the data packet (205), to a destination system (180).

    摘要翻译: 公开了一种数据分组传输系统。 该系统包括具有存储块(202)和通信控制器(204)的处理器(178)。 处理器(178)将数据分组(205),缓冲描述符阵列(206)和报头(208)存储在存储块(202)中。 缓冲描述符阵列(206)具有第一多个元素(206b,206d,206f,206h,206i),每个元素指示数据分组(206)的相应分段(205a-205e)和第二多个元素 206a,206c,206e,206g),每个指示标题(208)。 处理器(178)将缓冲器描述符阵列(206)的位置提供给通信控制器(204)。 作为响应,通信控制器(204)向目的地系统(180)发送包括报头(208)的每个小区和数据分组(205)的一部分的多个小区(222,224,226,228) 。

    Transport interface for performing protection switching of
telecommunications traffic
    8.
    发明授权
    Transport interface for performing protection switching of telecommunications traffic 失效
    用于执行电信业务保护倒换的传输接口

    公开(公告)号:US6009075A

    公开(公告)日:1999-12-28

    申请号:US625801

    申请日:1996-03-29

    摘要: A transport interface (10) provides add drop multiplex functionality and termination requirements for the transportation of network traffic. The transport interface (10) includes high speed units (12), broadband interfaces (16), and SONET formatters (18). Each high speed unit (12), broadband interface (16), and SONET formatter has redundant protection pairs (A and B). The high speed units (12), broadband interfaces (16), and SONET formatters (18) communicate with each other by in-band datalinks (40). The redundant protection pairs (A and B) communicate with one another by protection pair datalinks (42). The in-band datalinks (40) and the protection pair datalinks (42) provide an effective means for performing protection switching within the transport interface (10) in the event of component failure. The in-band datalinks (40) are generated out of available or consumed bytes within either a section overhead (32) or a line overhead (34) of SONET OC-N frame (30). The protection pair datalinks (42) provide communication capability over a common control communications interface. The in-band datalinks (40) and the protection pair data links (42) work together to provide a smooth transition from one component to another in the event of a protection switch.

    摘要翻译: 传输接口(10)为网络流量的传输提供添加分支复用功能和终止要求。 传输接口(10)包括高速单元(12),宽带接口(16)和SONET格式化器(18)。 每个高速单元(12),宽带接口(16)和SONET格式化器具有冗余保护对(A和B)。 高速单元(12),宽带接口(16)和SONET格式化器(18)通过带内数据链路(40)彼此通信。 冗余保护对(A和B)通过保护对数据链路彼此通信(42)。 带内数据链路(40)和保护对数据链路(42)提供了在组件故障的情况下在传输接口(10)内执行保护切换的有效手段。 在SONET OC-N帧(30)的段开销(32)或行开销(34)之内,可用或消耗的字节产生带内数据链路(40)。 保护对数据链路(42)通过公共控制通信接口提供通信能力。 在保护开关的情况下,带内数据链路(40)和保护对数据链路(42)一起工作以提供从一个组件到另一个组件的平滑过渡。