公开(公告)号：US20150043380A1

公开(公告)日：2015-02-12

申请号：US14386860

申请日：2012-03-23

Applicant: Balázs Varga ,  Peter Balázs Gerö ,  Shahryar Khan

Inventor： Balázs Varga ,  Peter Balázs Gerö ,  Shahryar Khan

IPC: H04L12/721 ,  H04L12/24

CPC classification number: H04L45/68 ,  H04L12/4641 ,  H04L41/12 ,  H04L45/28

Abstract: A pseudowire redundancy network comprises a plurality of pseudowires (PW13, PW 14) attached to a provider edge node (201). For selecting an active pseudowire (PW13) to be used for forwarding user traffic, the provider edge node (201) determines a local preferential forwarding status for each of the pseudowires (PW13, PW14). The determined preferential forwarding status is active for no more than one of the pseudowires (PW13, PW14). The provider edge node (201) indicates the determined local preferential forwarding status of the pseudowires (PW13, PW14) to remote provider edge nodes (203, 204). Further, the provider edge node (201) receives indications of a remote preferential forwarding status for each of the pseudowires (PW13, PW14) from the remote provider edge nodes (203, 204). The provider edge node (201) then selects that one of the pseudowires (PW13, PW14) as active for which both the local preferential forwarding status and the remote preferential forwarding status is active.

Abstract translation: 伪线冗余网络包括附加到提供商边缘节点（201）的多个伪线（PW13，PW14）。 为了选择用于转发用户业务的活动伪线（PW13），提供者边缘节点（201）确定每个伪线（PW13，PW14）的本地优先转发状态。 所确定的优先转发状态对于不多于一个伪线（PW13，PW14）有效。 提供商边缘节点（201）将确定的伪线（PW13，PW14）的本地优先转发状态指示给远程提供商边缘节点（203,204）。 此外，提供商边缘节点（201）从远程提供商边缘节点（203,204）接收每个伪线（PW13，PW14）的远程优先转发状态的指示。 提供者边缘节点（201）然后选择该虚拟线路（PW13，PW14）中的一个作为活动的本地优先转发状态和远程优先转发状态都是活动的。

公开(公告)号：US09596176B2

公开(公告)日：2017-03-14

申请号：US14386860

申请日：2012-03-23

Applicant: Balázs Varga ,  Peter Balázs Gerö ,  Shahryar Khan

Inventor： Balázs Varga ,  Peter Balázs Gerö ,  Shahryar Khan

IPC: H04L12/24 ,  H04L12/721 ,  H04L12/46 ,  H04L12/703

CPC classification number: H04L45/68 ,  H04L12/4641 ,  H04L41/12 ,  H04L45/28

Abstract: A pseudowire redundancy network comprises a plurality of pseudowires (PW13, PW 14) attached to a provider edge node (201). For selecting an active pseudowire (PW13) to be used for forwarding user traffic, the provider edge node (201) determines a local preferential forwarding status for each of the pseudowires (PW13, PW14). The determined preferential forwarding status is active for no more than one of the pseudowires (PW13, PW14). The provider edge node (201) indicates the determined local preferential forwarding status of the pseudowires (PW13, PW14) to remote provider edge nodes (203, 204). Further, the provider edge node (201) receives indications of a remote preferential forwarding status for each of the pseudowires (PW13, PW14) from the remote provider edge nodes (203, 204). The provider edge node (201) then selects that one of the pseudowires (PW13, PW14) as active for which both the local preferential forwarding status and the remote preferential forwarding status is active.

Abstract translation: 伪线冗余网络包括附加到提供商边缘节点（201）的多个伪线（PW13，PW14）。 为了选择用于转发用户业务的活动伪线（PW13），提供者边缘节点（201）确定每个伪线（PW13，PW14）的本地优先转发状态。 所确定的优先转发状态对于不多于一个伪线（PW13，PW14）有效。 提供商边缘节点（201）将确定的伪线（PW13，PW14）的本地优先转发状态指示给远程提供商边缘节点（203,204）。 此外，提供商边缘节点（201）从远程提供商边缘节点（203,204）接收每个伪线（PW13，PW14）的远程优先转发状态的指示。 提供者边缘节点（201）然后选择该虚拟线路（PW13，PW14）中的一个作为活动的本地优先转发状态和远程优先转发状态都是活动的。