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    • 4. 发明授权
    • Communications system with a single protection loop
    • 具有单一保护回路的通信系统
    • US5365510A
    • 1994-11-15
    • US865533
    • 1992-04-09
    • David J. NicholsonDonald R. EllisJohn B. MillsDino C. DiPernaDavid W. MartinWang-Hsin PengKim B. Roberts
    • David J. NicholsonDonald R. EllisJohn B. MillsDino C. DiPernaDavid W. MartinWang-Hsin PengKim B. Roberts
    • H04J3/08H04L1/22
    • H04J3/085H04L1/22
    • A communications system is provided having SONET communications channels extending between first and second locations. The channels include pairs of forward and reverse channels for carrying traffic in normal operation between first and second locations and a protection channel for carrying traffic of one channel in the event of a fault. Each pair of forward and reverse channels is provided on a shelf at each location, the shelves having the same relative position at both locations and the protection channel is provided on a protection shelf. The protection channel includes, between the first and second locations, a forward optical link and a reverse optical link and at each of the first and second locations, a single protection loop, coupling the forward and reverse optical links, that forms the protection channel. The protection loop is used to provide, at each location, a local virtual protection loop for indicating the protection requirements and status of the respective location, and a remote virtual protection loop for indicating the protection requirements and status of the location remote from the respective location. The local protection loop is provided by inserting K1 and K2 bytes into E1 slots of STS-1 #25 and #2, respectively. The remote protection loop is provided by inserting K1 and K2 bytes into E1 slots of STS-1 #26 and #3, respectively.
    • 提供了具有在第一和第二位置之间延伸的SONET通信信道的通信系统。 信道包括用于在第一和第二位置之间正常操作中携带业务的正向和反向信道对,以及用于在发生故障的情况下携带一个信道的业务的保护信道。 每一对正向和反向通道设置在每个位置的搁架上,在两个位置具有相同相对位置的搁板和保护通道设置在保护架上。 保护信道在第一和第二位置之间包括正向光链路和反向光链路,并且在第一和第二位置中的每一个处包括形成保护信道的单个保护环路,耦合正向和反向光链路。 保护环路用于在每个位置提供用于指示相应位置的保护要求和状态的本地虚拟保护环路,以及用于指示远离相应位置的位置的保护要求和状态的远程虚拟保护环路 。 通过将K1和K2字节分别插入到STS-1#25和#2的E1插槽中来提供本地保护环路。 通过将K1和K2字节分别插入到STS-1#26和#3的E1插槽中来提供远程保护环路。
    • 5. 发明授权
    • Architecture and addressing scheme for storage interconnect and emerging storage service providers
    • 存储互连和新兴存储服务提供商的架构和寻址方案
    • US06920153B2
    • 2005-07-19
    • US09822181
    • 2001-04-02
    • Donald R. EllisDon CawthorneSilvo J. FrankSylvain DemargerieChris MurtonSilvana RomagninoR. Bruce Wallace
    • Donald R. EllisDon CawthorneSilvo J. FrankSylvain DemargerieChris MurtonSilvana RomagninoR. Bruce Wallace
    • H04L29/06H04L29/08H04L29/12H04J3/24
    • H04L29/12018H04L29/06H04L29/12009H04L61/10H04L67/1097H04L69/329
    • A technique for enabling a shared storage provider (SSP) to provide shared data storage to a plurality of customers while providing greater privacy and security of each customer's data by implementing a virtual private (VP) addressing scheme is disclosed. The technique also allows a storage networking service carrier to provide connectivity between a plurality of customer storage networking sites, keeping each customer separate from each other. In one embodiment, the technique is realized by network architecture and a scheme to separate and virtualize storage traffic and stored data on a shared infrastructure. Functionally, the scheme provides for the following features: translation between user storage network addresses to carrier addresses; recovery of user storage network addresses when data is returned to the user; use of the carrier assigned addresses to separate the users within the carrier's network; recognition of user storage address within the storage device for partitioning within the user's storage space assigned by the SSP; Storage virtualization or the logical representation of a storage independently of its physical organization; and the displacement of address mapping and virtualization functions away from devices directly attached to storage. All of the above can be implemented singly or in combination, by any networking technology including SONET, ATM, IP, Ethernet and Fiber Channel network technologies.
    • 公开了一种使共享存储提供商(SSP)能够向多个客户提供共享数据存储的技术,同时通过实现虚拟专用(VP)寻址方案来提供每个客户数据的更大隐私和安全性。 该技术还允许存储网络服务运营商提供多个客户存储网络站点之间的连接,从而使每个客户彼此分开。 在一个实施例中,该技术通过网络架构和用于在共享基础设施上分离和虚拟化存储流量和存储的数据的方案来实现。 在功能上,该方案提供以下特征:用户存储网络地址到载波地址之间的转换; 当数据返回给用户时恢复用户存储网络地址; 使用承运人分配的地址来分离运营商网络内的用户; 识别存储设备内的用户存储地址,以便在SSP分配的用户存储空间内进行分区; 存储虚拟化或独立于其物理组织的存储的逻辑表示; 以及地址映射和虚拟化功能的位移远离直接连接到存储的设备。 所有这些都可以通过任何网络技术,包括SONET,ATM,IP,以太网和光纤通道网络技术单独或组合实现。
    • 6. 发明授权
    • System and method for removing latency effects in acknowledged data transfers
    • 用于消除确认数据传输中的延迟效应的系统和方法
    • US06859865B2
    • 2005-02-22
    • US09986548
    • 2001-11-09
    • Sylvain De MargerieBruno LepineDonald R. Ellis
    • Sylvain De MargerieBruno LepineDonald R. Ellis
    • G06F13/00
    • G06F11/2007G06F11/2076
    • A system and method for removing distance related latency effects in acknowledged data transfer applications. The system comprises providing highly reliable redundant communication links between a primary storage site and a remote storage site. The system receives data from a storage consumer and transcribes the data to a storage device at the primary storage site. Copies of the data are placed on each of the redundant communication links for transmission to the remote storage site, and a data transfer acknowledgement is immediately generated for the storage consumer. The copies of data are reconciled at the remote storage site and the data is transcribed to a storage device. A transaction report is issued and transmitted to the primary storage site. In the rare event that there are any errors in the reconciled data at the remote storage site, the transaction report includes an error message, and subsequent error recovery procedures are undertaken.
    • 一种用于在确认的数据传输应用中消除距离相关延迟效应的系统和方法。 该系统包括在主存储站点和远程存储站点之间提供高度可靠的冗余通信链路。 系统从存储消费者接收数据,并将数据转录到主存储位置的存储设备。 将数据副本放置在每个冗余通信链路上,以传输到远程存储站点,并立即为存储消费者生成数据传输确认。 数据副本在远程存储站点协调,并将数据转录到存储设备。 发出交易报告并将其传送到主存储站点。 在极少数情况下,在远程存储站点的对帐数据中存在任何错误,事务报告将包含错误消息,并执行后续的错误恢复过程。