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    • 1. 发明授权
    • System and method for fault recovery for a two line bi-directional ring network
    • 用于双线双向环网故障恢复的系统和方法
    • US06820210B1
    • 2004-11-16
    • US10418452
    • 2003-04-17
    • Feisal DaruwallaHon Wah ChinDavid TsiangGeorge SuwalaTony Bates
    • Feisal DaruwallaHon Wah ChinDavid TsiangGeorge SuwalaTony Bates
    • G06F1100
    • H04L45/28H04L12/42H04L12/437H04L45/22
    • The present invention provides a protection protocol for fault recovery, such as a ring wrap, for a network, such as a two line bi-directional ring network. An embodiment of the present invention works in conjunction with a ring topology network in which a node in the network can identify a problem with a connection between the node and a first neighbor. The present invention provides 1 protection protocol which simplifies the coordination required by the nodes in a ring network. The nodes do not need to maintain a topology map of the ring, identifying and locating each node on the ring, for effective protection. Additionally, independently operating ring networks can be merged and the protection protocol will appropriately remove a protection, such as a ring wrap, to allow the formation of a single ring. It also provides for multiple levels of protection priority so that protection for a high priority failure, such as a physical break in a connection, would remove protection for a low priority failure, such as signal degrade, on another link.
    • 本发明提供了一种用于故障恢复的保护协议,例如用于诸如双线双向环网络的网络的环绕。 本发明的实施例与环形拓扑网络一起工作,其中网络中的节点可以识别节点和第一邻居之间的连接的问题。 本发明提供了一种保护协议,其简化了环网中的节点所需的协调。 节点不需要维护环的拓扑图,识别和定位环上的每个节点,以进行有效的保护。 此外,独立操作的环网络可以被合并,并且保护协议将适当地去除诸如环圈之类的保护以允许形成单个环。 它还提供多级别的保护优先级,以便保护高优先级故障,例如连接中的物理中断,将消除对另一个链路上的低优先级故障(如信号降级)的保护。
    • 2. 发明授权
    • System and method for fault recovery for a two line bi-directional ring network
    • 用于双线双向环网故障恢复的系统和方法
    • US06269452B1
    • 2001-07-31
    • US09067482
    • 1998-04-27
    • Feisal DaruwallaHon Wah ChinDavid TsiangGeorge SuwalaTony Bates
    • Feisal DaruwallaHon Wah ChinDavid TsiangGeorge SuwalaTony Bates
    • G06F1100
    • H04L45/28H04L12/42H04L12/437H04L45/22
    • The present invention provides a protection protocol for fault recovery, such as a ring wrap, for a network, such as a two line bi-directional ring network. An embodiment of the present invention works in conjunction with a ring topology network in which a node in the network can identify a problem with a connection between the node and a first neighbor. The present invention provides a protection protocol which simplifies the coordination required by the nodes in a ring network. The nodes do not need to maintain a topology map of the ring, identifying and locating each node on the ring, for effective protection. Additionally, independently operating ring networks can be merged and the protection protocol will appropriately remove a protection, such as a ring wrap, to allow the formation of a single ring. It also provides for multiple levels of protection priority so that protection for a high priority failure, such as a physical break in a connection, would remove protection for a low priority failure, such as a signal degrade, on another link.
    • 本发明提供了一种用于故障恢复的保护协议,例如用于诸如双线双向环网络的网络的环绕。 本发明的实施例与环形拓扑网络一起工作,其中网络中的节点可以识别节点和第一邻居之间的连接的问题。 本发明提供了一种保护协议,其简化了环网中节点所需的协调。 节点不需要维护环的拓扑图,识别和定位环上的每个节点,以进行有效的保护。 此外,独立操作的环网络可以被合并,并且保护协议将适当地去除诸如环圈之类的保护以允许形成单个环。 它还提供多个级别的保护优先级,以便保护高优先级的故障,例如连接中的物理中断,将消除对另一个链路上低优先级故障(例如信号降级)的保护。
    • 3. 发明授权
    • System and method for fault recovery for a two line bi-directional ring network
    • 用于双线双向环网故障恢复的系统和方法
    • US06430700B1
    • 2002-08-06
    • US09910467
    • 2001-07-19
    • Feisal DaruwallaHon Wah ChinDavid TsiangGeorge SuwalaTony Bates
    • Feisal DaruwallaHon Wah ChinDavid TsiangGeorge SuwalaTony Bates
    • G06F1100
    • H04L45/28H04L12/42H04L12/437H04L45/22
    • The present invention provides a protection protocol for fault recovery, such as a ring wrap, for a network, such as a two line bidirectional ring network. An embodiment of the present invention works in conjunction with a ring topology network in which a node in the network can identify a problem with a connection between the node and a first neighbor. The present invention provides a protection protocol which simplifies the coordination required by the nodes in a ring network. The nodes do not need to maintain a topology map of the ring, identifying and locating each node on the ring, for effective protection. Additionally, independently operating ring networks can be merged and the protection protocol will appropriately remove a protection, such as a ring wrap, to allow the formation of a single ring. It also provides for multiple levels of protection priority so that protection for a high priority failure, such as a physical break in a connection, would remove protection for a low priority failure, such as a signal degrade, on another link.
    • 本发明为网络(例如双线双向环网)提供了用于故障恢复的保护协议,例如环绕。 本发明的实施例与环形拓扑网络一起工作,其中网络中的节点可以识别节点和第一邻居之间的连接的问题。 本发明提供了一种保护协议,其简化了环网中节点所需的协调。 节点不需要维护环的拓扑图,识别和定位环上的每个节点,以进行有效的保护。 此外,独立操作的环网络可以被合并,并且保护协议将适当地去除诸如环圈之类的保护以允许形成单个环。 它还提供多级保护优先级,以便保护高优先级的故障,例如连接中的物理中断,将消除对另一个链路上低优先级故障(如信号降级)的保护。
    • 4. 发明授权
    • System and method for fault recovery for two line bi-directional ring network
    • 双线双向环网故障恢复系统及方法
    • US06615362B1
    • 2003-09-02
    • US10170980
    • 2002-06-12
    • Feisal DaruwallaHon Wah ChinDavid TsiangGeorge SuwalaTony Bates
    • Feisal DaruwallaHon Wah ChinDavid TsiangGeorge SuwalaTony Bates
    • G06F1100
    • H04L45/28H04L12/42H04L12/437H04L45/22
    • The present invention provides a protection protocol for fault recovery, such as a ring wrap, for a network, such as a two line bi-directional ring network. An embodiment of the present invention works in conjunction with a ring topology network in which a node in the network can identify a problem with a connection between the node and a first neighbor. The present invention provides a protection protocol which simplifies the coordination required by the nodes in a ring network. The nodes do not need to maintain a topology map of the ring, identifying and locating each node on the ring, for effective protection. Additionally, independently operating ring networks can be merged and the protection protocol will appropriately remove a protection, such as a ring wrap, to allow the formation of a single ring. It also provides for multiple levels of protection priority so that protection for a high priority failure, such as a physical break in a connection, would remove protection for a low priority failure, such as a signal degrade, on another link.
    • 本发明提供了一种用于故障恢复的保护协议,例如用于诸如双线双向环网络的网络的环绕。 本发明的实施例与环形拓扑网络一起工作,其中网络中的节点可以识别节点和第一邻居之间的连接的问题。 本发明提供了一种保护协议,其简化了环网中节点所需的协调。 节点不需要维护环的拓扑图,识别和定位环上的每个节点,以进行有效的保护。 此外,独立操作的环网络可以被合并,并且保护协议将适当地去除诸如环圈之类的保护以允许形成单个环。 它还提供多级保护优先级,以便保护高优先级的故障,例如连接中的物理中断,将消除对另一个链路上低优先级故障(如信号降级)的保护。
    • 5. 发明授权
    • Method and apparatus for distributed packet switching using distributed
address tables
    • 使用分布式地址表分布式分组交换的方法和装置
    • US6128296A
    • 2000-10-03
    • US943761
    • 1997-10-03
    • Feisal DaruwallaHon Wah Chin
    • Feisal DaruwallaHon Wah Chin
    • H04L12/46H04L12/56H04L12/28
    • H04L12/4625H04L49/351
    • A method and apparatus for packet switching using distributed address tables. A first table of station addresses and their associated switching device ports is maintained on a central node of a switching device. Entries in the first table are based on learning information associated with packets forwarded by the central node. A second table of station addresses and their associated switching device ports is maintained on a local node of the switching device. Entries in the second table are based on learning information associated with packets forwarded by the local node. The packets forwarded by the local node include packets not forwarded by the central node so that the first and second tables of station addresses are different from one another.
    • 一种使用分布式地址表进行分组交换的方法和装置。 站地址的第一表及其关联的交换设备端口被维护在交换设备的中心节点上。 第一个表中的条目是基于与由中央节点转发的数据包相关联的学习信息。 站地址的第二表及其关联的交换设备端口被维护在交换设备的本地节点上。 第二表中的条目是基于与由本地节点转发的分组相关联的学习信息。 由本地节点转发的分组包括中心节点未转发的分组,使得站地址的第一和第二表彼此不同。
    • 9. 发明授权
    • Port aggregation protocol
    • 端口聚合协议
    • US06163543A
    • 2000-12-19
    • US312702
    • 1999-05-17
    • Hon Wah ChinMichael FineNorman W. FinnRichard J. Hausman
    • Hon Wah ChinMichael FineNorman W. FinnRichard J. Hausman
    • H04L12/46H04L12/56H04L12/28
    • H04L12/4604H04L45/02H04L45/22
    • A port aggregation protocol (PAGP) dynamically aggregates redundant links between two neighboring devices in a computer network through the exchange of aggregation protocol data unit (AGPDU) frames between the two devices. Each AGPDU frame contains a unique identifier corresponding to the device sourcing the frame and a port number corresponding to the port through which the frame is forwarded. The exchange of AGPDU frames and the information contained therein allows the neighboring devices to identify those ports corresponding to the redundant links. Each device then dynamically aggregates its ports corresponding to the redundant links into a logical aggregation port (agport) which appears as a single, high-bandwidth port or interface to other processes executing on the device.
    • 端口聚合协议(PAGP)通过在两个设备之间交换聚合协议数据单元(AGPDU)来动态聚合计算机网络中两个相邻设备之间的冗余链路。 每个AGPDU帧包含与发送帧的设备相对应的唯一标识符和对应于帧转发的端口的端口号。 AGPDU帧的交换和其中包含的信息允许相邻设备识别与冗余链路相对应的那些端口。 然后,每个设备将其对应于冗余链路的端口动态聚合成逻辑聚合端口(agport),该端口作为单个高带宽端口或接口连接到在设备上执行的其他进程。