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    • 5. 发明申请
    • PSEUDOWIRE EXTENDED GROUP ACTIONS IN A PACKET SWITCHED NETWORK
    • 在分组交换网络中进行扩展的组播操作
    • WO2013148618A1
    • 2013-10-03
    • PCT/US2013/033787
    • 2013-03-26
    • ALCATEL LUCENT
    • DUTTA, Pranjal, K.
    • H04L12/701
    • H04L45/68H04L45/28H04L45/50
    • Embodiments of the invention are directed to extended psuedowire groups in a packet switched network. Embodiments associate a pseudowire to one or more groups at each provider edge device across which the pseudowire traverses. When a pseudowire set-up request message traverses across various provider edge devices, each provider edge device typically adds one or more local group membership information elements into the pseudowire set-up request message. In that way the grouping assigned by each provider edge device that the pseudowire traverses is made available to all other provider edge devices traversed by the pseudowire. Advantageously, this availability pseudowire grouping information allows any of these provider edge devices to initiate a wildcard message to notify other provider edge devices with respect to pseudowires in any of its local groups, as well as allowing a pseudowire to be bound to multiple groups based on various requirements.
    • 本发明的实施例涉及分组交换网络中的扩展伪线组。 实施例将伪线连接到伪线穿过的每个提供商边缘设备处的一个或多个组。 当伪线建立请求消息穿过各种提供商边缘设备时,每个提供商边缘设备通常将一个或多个本地组成员资格信息元素添加到伪线路建立请求消息中。 以这种方式,由伪线穿过的每个提供商边缘设备分配的分组对于由伪线穿过的所有其他提供商边缘设备是可用的。 有利地,该可用性伪线分组信息允许这些提供商边缘设备中的任何一个发起通配符消息以通知其他提供商边缘设备相对于其任何本地组中的伪线,以及允许将伪线绑定到多个组基于 各种要求。
    • 6. 发明申请
    • PSEUDOWIRE EXTENDED GROUP MESSAGING IN A PACKET SWITCHED NETWORK
    • 在分组交换网络中进行扩展群扩散
    • WO2013148137A1
    • 2013-10-03
    • PCT/US2013/030221
    • 2013-03-11
    • ALCATEL LUCENT
    • DUTTA, Pranjal, K.
    • H04L12/721
    • H04L45/16H04L45/68
    • Embodiments of the invention are directed to extended psuedowire groups in a packet switched network. Embodiments associate a pseudowire to one or more groups at each provider edge device across which the pseudowire traverses. When a pseudowire set-up request message traverses across various provider edge devices, each provider edge device typically adds one or more local group membership information elements into the pseudowire set-up request message. In that way the grouping assigned by each provider edge device that the pseudowire traverses is made available to all other provider edge devices traversed by the pseudowire. Advantageously, this availability pseudowire grouping information allows any of these provider edge devices to initiate a wildcard message to notify other provider edge devices with respect to pseudowires in any of its local groups, as well as allowing a pseudowire to be bound to multiple groups based on various requirements.
    • 本发明的实施例涉及分组交换网络中的扩展伪线组。 实施例将伪线连接到伪线穿过的每个提供商边缘设备处的一个或多个组。 当伪线建立请求消息穿过各种提供商边缘设备时,每个提供商边缘设备通常将一个或多个本地组成员资格信息元素添加到伪线路建立请求消息中。 以这种方式,由伪线穿过的每个提供商边缘设备分配的分组对于由伪线穿过的所有其他提供商边缘设备是可用的。 有利地,该可用性伪线分组信息允许这些提供商边缘设备中的任何一个发起通配符消息以通知其他提供商边缘设备相对于其任何本地组中的伪线,以及允许将伪线绑定到多个组基于 各种要求。
    • 7. 发明申请
    • PSEUDOWIRE GROUPS IN A PACKET SWITCHED NETWORK
    • 分组交换网络中的PSEUDOWIRE组
    • WO2013148133A1
    • 2013-10-03
    • PCT/US2013/030181
    • 2013-03-11
    • ALCATEL LUCENT
    • DUTTA, Pranjal, K.
    • H04L12/701
    • H04L45/68
    • Embodiments of the invention are directed to extended psuedowire groups in a packet switched network. Embodiments associate a pseudowire to one or more groups at each provider edge device across which the pseudowire traverses. When a pseudowire set-up request message traverses across various provider edge devices, each provider edge device typically adds one or more local group membership information elements into the pseudowire set-up request message. In that way the grouping assigned by each provider edge device that the pseudowire traverses is made available to all other provider edge devices traversed by the pseudowire. Advantageously, this availability pseudowire grouping information allows any of these provider edge devices to initiate a wildcard message to notify other provider edge devices with respect to pseudowires in any of its local groups, as well as allowing a pseudowire to be bound to multiple groups based on various requirements.
    • 本发明的实施例涉及分组交换网络中的扩展伪线组。 实施例将伪线连接到伪线穿过的每个提供商边缘设备处的一个或多个组。 当伪线建立请求消息穿过各种提供商边缘设备时,每个提供商边缘设备通常将一个或多个本地组成员资格信息元素添加到伪线路建立请求消息中。 以这种方式,由伪线穿过的每个提供商边缘设备分配的分组对于由伪线穿过的所有其他提供商边缘设备是可用的。 有利地,该可用性伪线分组信息允许这些提供商边缘设备中的任何一个发起通配符消息以通知其他提供商边缘设备相对于其任何本地组中的伪线,以及允许将伪线绑定到多个组基于 各种要求。
    • 8. 发明申请
    • METHOD AND APPARATUS FOR RAPID REROUTING OF LDP PACKETS
    • LDP分组快速重组的方法和装置
    • WO2012129020A1
    • 2012-09-27
    • PCT/US2012/029027
    • 2012-03-14
    • ALCATEL LUCENTDUTTA, Pranjal, K.KOMPELLA, Vach, P.
    • DUTTA, Pranjal, K.KOMPELLA, Vach, P.
    • H04L12/56
    • H04L45/28H04L45/18H04L45/507
    • A u-turn fast rerouting capability is depicted and described herein. A packet that is intended for a destination node is propagated from a first node toward a second node. The first node propagates the packet toward the second node based on selection of a first routing path for routing the packet from the first node toward the destination node. The second node, upon receiving the packet, determines that the packet cannot be delivered to the destination node via the first routing path. The second node inserts a u-turn label into the packet and returns the packet to the first node. The u-turn label indicates to the first node that the packet is being returned to the first node by the second node due to a condition preventing propagation of the packet toward the destination node using the first routing path. The first node, upon receiving the packet including the u-turn label, then selects a second routing path for routing the packet toward the destination node and propagates the packet toward the destination node based on the second routing path. The u- turn fast rerouting capability enables fast rerouting of packets in a manner preventing dropping of packets and preventing formation of forwarding loops.
    • 本文描述和描述了转向快速重路由能力。 用于目的地节点的分组从第一节点传播到第二节点。 第一节点基于选择用于将分组从第一节点路由到目的地节点的第一路由路径,向第二节点传播分组。 第二节点在接收到分组后确定该分组不能经由第一路由路径被传送到目的地节点。 第二个节点将u-turn标签插入数据包,并将数据包返回到第一个节点。 转向标签由第一节点指示该分组正由第二节点返回到第一节点,这是由于防止使用第一路由路径向分组朝向目的节点传播的条件。 第一节点在接收到包括u转标签的分组时,然后选择第二路由路径用于将分组路由到目的地节点,并且基于第二路由路径将分组传播到目的地节点。 转发快速重路由功能可以快速重新路由数据包,从而防止数据包丢失,防止转发环路的形成。