IN-BAND SIGNALING FOR POINT-MULTIPOINT PACKET PROTECTION SWITCHING

    公开(公告)号:US20130028071A1

    公开(公告)日:2013-01-31

    申请号:US13549627

    申请日:2012-07-16

    IPC分类号: H04L12/24

    摘要: A method and system provide in-band protection switch signaling in a communication system arranged as a point-to-multipoint tree. The point-to-multipoint tree includes a root node communicatively coupled to a plurality of leaf nodes through both a working link and a protection link. Data is transferred through a current link of the point-to-multipoint tree. The current link is either the working link or the protection link. A fault is detected in the current link in the point-to-multipoint tree. Each leaf node in the point-to-multipoint tree is notified of the fault using the current link. Upon receiving the notification, the root node and each leaf node switch to the other link of the working link and the protection link.

    In-band signaling for point-multipoint packet protection switching
    2.
    发明授权
    In-band signaling for point-multipoint packet protection switching 有权
    用于点对多点分组保护切换的带内信令

    公开(公告)号:US08243743B2

    公开(公告)日:2012-08-14

    申请号:US12421227

    申请日:2009-04-09

    IPC分类号: H04L12/28 H04L12/56

    摘要: A method and system provide in-band protection switch signaling in a communication system arranged as a point-to-multipoint tree. The point-to-multipoint tree includes a root node communicatively coupled to a plurality of leaf nodes through both a working link and a protection link. Data is transferred through a current link of the point-to-multipoint tree. The current link is either the working link or the protection link. A fault is detected in the current link in the point-to-multipoint tree. Each leaf node in the point-to-multipoint tree is notified of the fault using the current link. Upon receiving the notification, the root node and each leaf node switch to the other link of the working link and the protection link.

    摘要翻译: 一种方法和系统在布置为点对多点树的通信系统中提供带内保护交换机信令。 点对多点树包括通过工作链路和保护链路通信地耦合到多个叶节点的根节点。 数据通过点对多点树的当前链路传输。 当前链接是工作链路或保护链路。 在点对多点树中的当前链路中检测到故障。 点对多点树中的每个叶节点都使用当前链接通知故障。 收到通知后,根节点和每个叶节点切换到工作链路​​和保护链路的另一个链路。

    IN-BAND SIGNALING FOR POINT-MULTIPOINT PACKET PROTECTION SWITCHING
    3.
    发明申请
    IN-BAND SIGNALING FOR POINT-MULTIPOINT PACKET PROTECTION SWITCHING 有权
    用于点多点分组保护切换的带内信号

    公开(公告)号:US20100260197A1

    公开(公告)日:2010-10-14

    申请号:US12421227

    申请日:2009-04-09

    IPC分类号: H04L12/56

    摘要: A method and system provide in-band protection switch signaling in a communication system arranged as a point-to-multipoint tree. The point-to-multipoint tree includes a root node communicatively coupled to a plurality of leaf nodes through both a working link and a protection link. Data is transferred through a current link of the point-to-multipoint tree. The current link is either the working link or the protection link. A fault is detected in the current link in the point-to-multipoint tree. Each leaf node in the point-to-multipoint tree is notified of the fault using the current link. Upon receiving the notification, the root node and each leaf node switch to the other link of the working link and the protection link.

    摘要翻译: 一种方法和系统在布置为点对多点树的通信系统中提供带内保护交换机信令。 点对多点树包括通过工作链路和保护链路通信地耦合到多个叶节点的根节点。 数据通过点对多点树的当前链路传输。 当前链接是工作链路或保护链路。 在点对多点树中的当前链路中检测到故障。 点对多点树中的每个叶节点都使用当前链接通知故障。 收到通知后,根节点和每个叶节点切换到工作链路​​和保护链路的另一个链路。

    Self-healing link switched ring for ATM traffic
    5.
    发明授权
    Self-healing link switched ring for ATM traffic 失效
    自动交换环路用于ATM流量

    公开(公告)号:US06888791B1

    公开(公告)日:2005-05-03

    申请号:US09467243

    申请日:1999-12-20

    摘要: The invention provides for a method for transporting a SONET formatted asynchronous transfer mode (ATM) signal and/or a synchronous transfer mode (STM) signal on a line switched ring over a unidirectional path. The SONET formatted ATM signal comprises cells mapped into a STS-Mc or m×STS-1s while the STM signal comprises STS-1s/VTS mapped STS-W. A unidirectional line switched ring is provided for transporting the STM STS-W using a unidirectional path switched protection protocol and the ATM STS-Mc using a unidirectional line switched protection protocol. A ring node comprises input and output ring interfaces, an STS management block, an ATM cell management block, and a non-ATM payload management block. The STS management block routes the traffic to the ATM cell management block and to the non-ATM payload management block, according to the traffic type. The STS management block also provides the UPSR protection for the STS-1s and ULSR protection for the STS-Mc. The ATM cell management block maps the add ATM cells received from the ATM ports into the STS-Mc signal, and delineates the cells from the STS-Mc to present them to the ATM ports. The non-ATM payload management block routes STM VTs or STS-1s to/from the non-ATM ports.

    摘要翻译: 本发明提供了一种用于在单向路径上的线路交换环上传送SONET格式化的异步传输模式(ATM)信号和/或同步传输模式(STM)信号的方法。 SONET格式的ATM信号包括映射到STS-Mc或mxSTS-1的小区,而STM信号包括STS-1 / VTS映射的STS-W。 提供单向线路交换环,用于使用单向路径交换保护协议和ATM STS-Mc使用单向线路交换保护协议传输STM STS-W。 环形节点包括输入和输出环形接口,STS管理块,ATM信元管理块和非ATM有效载荷管理块。 根据流量类型,STS管理块将流量路由到ATM信元管理块和非ATM有效载荷管理块。 STS管理块还为STS-McS提供了STS-1和ULSR保护的UPSR保护。 ATM信元管理块将从ATM端口接收的添加ATM信元映射到STS-Mc信号中,并从STS-Mc中描绘出这些信元给ATM端口。 非ATM有效载荷管理块向非ATM端口传送STM VT或STS-1。

    Self-healing line switched ring for ATM traffic
    6.
    发明授权
    Self-healing line switched ring for ATM traffic 失效
    用于ATM业务的自愈线路交换环

    公开(公告)号:US06256292B1

    公开(公告)日:2001-07-03

    申请号:US08783869

    申请日:1997-01-16

    IPC分类号: H04L122

    摘要: The invention provides for a method for transporting a SONET formatted asynchronous transfer mode (ATM) signal and/or a synchronous transfer mode (STM) signal on a line switched ring over a unidirectional path. The SONET formatted ATM signal comprises cells mapped into a STS-Mc or m×STS-1s while the STM signal comprises STS-1s/VTs mapped STS-W. A unidirectional line switched ring is provided for transporting the STM STS-W using a unidirectional path switched protection protocol and the ATM STS-Mc using a unidirectional line switched protection protocol. A ring node comprises input and output ring interfaces, an STS management block, an ATM cell management block, and a non-ATM payload management block. The STS management block routes the traffic to the ATM cell management block and to the non-ATM payload management block, according to the traffic type. The STS management block also provides the UPSR protection for the STS-1s and ULSR protection for the STS-Mc. The ATM cell management block maps the add ATM cells received from the ATM ports into the STS-Mc signal, and delineates the cells from the STS-Mc to present them to the ATM ports. The non-ATM payload management block routes STM VTs or STS-1s to/from the non-ATM ports.

    摘要翻译: 本发明提供了一种用于在单向路径上的线路交换环上传送SONET格式化的异步传输模式(ATM)信号和/或同步传输模式(STM)信号的方法。 SONET格式的ATM信号包括映射到STS-Mc或mxSTS-1的小区,而STM信号包括映射STS-W的STS-1 / VT。 提供单向线路交换环,用于使用单向路径交换保护协议和ATM STS-Mc使用单向线路交换保护协议传输STM STS-W。 环形节点包括输入和输出环形接口,STS管理块,ATM信元管理块和非ATM有效载荷管理块。 根据流量类型,STS管理块将流量路由到ATM信元管理块和非ATM有效载荷管理块。 STS管理块还为STS-McS提供了STS-1和ULSR保护的UPSR保护。 ATM信元管理块将从ATM端口接收的添加ATM信元映射到STS-Mc信号中,并从STS-Mc中描绘出这些信元给ATM端口。 非ATM有效载荷管理块向非ATM端口传送STM VT或STS-1。

    Network architectures with transparent transport capabilities
    7.
    发明授权
    Network architectures with transparent transport capabilities 失效
    具有透明传输功能的网络架构

    公开(公告)号:US06205158B1

    公开(公告)日:2001-03-20

    申请号:US08994760

    申请日:1997-12-19

    IPC分类号: H04J302

    摘要: Architectures for a synchronous transport network of a telecommunications system using transparent transport capabilities are presented. The telecommunications network comprises a pair of transparent multiplexers (TMuxs) connected over a bidirectional high speed span for transparently transporting high rate traffic. Each TMux consolidates traffic from a plurality (I) of linear systems or a plurality of bidirectional self-healing rings, each ring (Ki) having a ring rate Ri and at least two nodes (Ai, Bi). In another configuration, each TMux subtends a plurality of rings, such TMuxes being adapted for connection as ring nodes in a high-speed ring. The upgrades obtained with TMuxes in both the linear and ring configurations provide for per span relief for fiber exhaust where no changes to the existing systems are desired. As well, the bandwidth of an existing system may be increased on a per-span basis or the equipment count may be reduced.

    摘要翻译: 提出了使用透明传输能力的电信系统的同步传输网络的架构。 电信网络包括通过双向高速跨段连接的一对透明多路复用器(TMux),用于透明地传输高速率业务。 每个TMux整合来自多个(I)线性系统或多个双向自愈环的流量,每个环(Ki)具有环速率Ri和至少两个节点(Ai,Bi)。 在另一种配置中,每个TMux对应多个环,这样的TMux适于作为高速环中的环形节点连接。 在线性和环形配置中使用TMuxes进行的升级提供了对于不需要对现有系统进行任何改变的纤维废气的每跨度浮雕。 同样,现有系统的带宽可以在每个跨度的基础上增加,或者可以减少设备数量。

    DYNAMIC PACKET TRAFFIC PERFORMANCE ADJUSTMENT SYSTEMS AND METHODS
    8.
    发明申请
    DYNAMIC PACKET TRAFFIC PERFORMANCE ADJUSTMENT SYSTEMS AND METHODS 有权
    动态分组交通性能调整系统和方法

    公开(公告)号:US20160036714A1

    公开(公告)日:2016-02-04

    申请号:US14622989

    申请日:2015-02-16

    摘要: A method, a network, and a network element use dynamic packet traffic performance adjustment techniques. In an exemplary embodiment, the dynamic resizing techniques utilize different packet connections providing connectivity to same sites between which bandwidth resizing is needed. Each of the packet connections has a separate and independent bandwidth profile that governs an amount of traffic that is dispatched over each packet connection. A network element sourcing traffic into the packet connections uses bridge functionality that dispatches client traffic onto all of the packet connections or an individual packet connection. This effectively means that the transport network bandwidth utilization is only consumed by a single packet connection, i.e., the packet connection-A (even through there are multiple configured). The network element sinking the traffic selects from a single active packet connection.

    摘要翻译: 一种方法,网络和网元使用动态分组流量性能调整技术。 在示例性实施例中,动态调整大小技术利用不同的分组连接来提供与需要带宽调整大小之间的相同站点的连接。 每个分组连接具有独立且独立的带宽配置文件,其控制在每个分组连接上分派的流量。 将流量引入分组连接的网络元件使用桥接功能,其将客户端流量分派到所有分组连接或单个分组连接。 这实际上意味着传输网络带宽利用率仅由单个分组连接消耗,即,分组连接-A(即使通过多个配置)。 吞吐流量的网络元件从单个活动分组连接中选择。

    Dynamic packet traffic performance adjustment systems and methods
    9.
    发明授权
    Dynamic packet traffic performance adjustment systems and methods 有权
    动态数据包流量性能调整系统和方法

    公开(公告)号:US08958332B2

    公开(公告)日:2015-02-17

    申请号:US13724204

    申请日:2012-12-21

    摘要: A method, a network, and a network element use dynamic packet traffic performance adjustment techniques. In an exemplary embodiment, the dynamic resizing techniques utilize different packet connections providing connectivity to same sites between which bandwidth resizing is needed. Each of the packet connections has a separate and independent bandwidth profile that governs an amount of traffic that is dispatched over each packet connection. A network element sourcing traffic into the packet connections uses bridge functionality that dispatches client traffic onto all of the packet connections or an individual packet connection. This effectively means that the transport network bandwidth utilization is only consumed by a single packet connection, i.e., the packet connection-A (even through there are multiple configured). The network element sinking the traffic selects from a single active packet connection.

    摘要翻译: 一种方法,网络和网元使用动态分组流量性能调整技术。 在示例性实施例中,动态调整大小技术利用不同的分组连接来提供与需要带宽调整大小之间的相同站点的连接。 每个分组连接具有独立且独立的带宽配置文件,其控制在每个分组连接上分派的流量。 将流量引入分组连接的网络元件使用桥接功能,其将客户端流量分派到所有分组连接或单个分组连接。 这实际上意味着传输网络带宽利用率仅由单个分组连接消耗,即,分组连接-A(即使通过多个配置)。 吞吐流量的网络元件从单个活动分组连接中选择。

    Transparent multiplexer/demultiplexer
    10.
    发明授权
    Transparent multiplexer/demultiplexer 失效
    透明多路复用器/解复用器

    公开(公告)号:US5841760A

    公开(公告)日:1998-11-24

    申请号:US847526

    申请日:1997-04-24

    摘要: A configuration for a SONET transport node comprises a pair of transparent mux/demuxs provided at two sites and connected over a high rate span. The T-Muxs provide continuity of all tribs and maintain a lower bit rate linear or ring system through the higher bit rate span. The lower bit rate linear or ring system operates as if it were directly connected without the higher bit rate midsection. For the forward direction of the traffic, the T-Mux comprises a multi-channel receiver for receiving the trib signals and providing for each trib signal a trib SPE and a trib OH. The trib SPEs are multiplexed into a supercarrier SPE and the trib OHs signals are processed to generate a supercarrier OH. A supercarrier transmitter maps the supercarrier SPE and the supercarrier OH into a supercarrier signal and transmits same over the high rate span. Reverse operations are effected for the reverse direction of traffic. With this invention, an entire ring system does not have to be upgraded to a higher line rate due to fiber exhaust on a single span. The invention is particularly applicable to OC-48/OC-12/OC-3 linear and ring networks and the high rate span could be an OC-192 line.

    摘要翻译: 用于SONET传输节点的配置包括在两个站点处提供并在高速率跨度上连接的一对透明多路复用器/解复用器。 T-Muxs提供所有部落的连续性,并通过更高的比特率跨度维持较低的比特率线性或环形系统。 较低比特率的线性或环形系统就像在没有较高比特率中段时直接连接一样工作。 对于交通的正向,T-Mux包括一个多通道接收器,用于接收三维信号,并为每个三星信号提供一个SPE和一个部落OH。 多个SPE被复用到超载体SPE中,并且处理各个OHs信号以产生超载体OH。 超载波发射机将超载波SPE和超载波OH映射到超载波信号中并在高速率范围内传输。 对于交通的相反方向进行反向操作。 利用本发明,由于在单个跨度上的纤维排气,整个环系统不必升级到更高的线路速率。 本发明特别适用于OC-48 / OC-12 / OC-3线性和环形网络,高速率跨度可以是OC-192线路。