公开(公告)号：US09270581B2

公开(公告)日：2016-02-23

申请号：US13974132

申请日：2013-08-23

申请人： CenturyLink Intellectual Property LLC

发明人： Ahmed Guellal ,  Shaohong Li

IPC分类号： H04L12/703 ,  H04L12/28 ,  H04L12/721 ,  H04L12/723

CPC分类号： H04L45/28 ,  H04L12/28 ,  H04L12/2856 ,  H04L12/4641 ,  H04L45/50 ,  H04L45/68

摘要： Novel tools and techniques are described for mitigating data loss during failover in a VPLS multi-homed network. In one aspect, a primary link might be established between a lowest numbered provider edge (“PE”) router in the service provider network and a lowest numbered physical site at customer premises outside the service provider network. A stability site might be established within the service provider network, communicatively coupled to at least the lowest numbered PE router via a primary virtual circuit. The stability site might be designated as the lowest numbered virtual site, which might have a site ID number lower than the lowest numbered physical site. In response to the primary link failing or becoming broken, one or more backup virtual circuits might be established between a plurality of ingress PE routers and a plurality of egress PE routers in the service provider network, without destroying the primary virtual circuit.

摘要翻译： 描述了用于在VPLS多归属网络中的故障转移期间减轻数据丢失的新型工具和技术。 在一个方面，可以在服务提供商网络中的最小编号的提供商边缘（“PE”）路由器与服务提供商网络之外的客户驻地的最低编号的物理站点之间建立主链路。 可以在服务提供商网络内建立稳定性站点，通过主虚拟电路通信地耦合到至少最低编号的PE路由器。 稳定性站点可能被指定为最低编号的虚拟站点，其可能的站点ID号低于最低编号的物理站点。 响应于主链路故障或断开，可以在多个入口PE路由器和服务提供商网络中的多个出口PE路由器之间建立一个或多个备份虚拟电路，而不破坏主虚拟电路。

公开(公告)号：US20140056125A1

公开(公告)日：2014-02-27

申请号：US13974132

申请日：2013-08-23

申请人： CenturyLink Intellectual Property LLC

发明人： Ahmed Guellal ,  Shaohong Li

IPC分类号： H04L12/703

CPC分类号： H04L45/28 ,  H04L12/28 ,  H04L12/2856 ,  H04L12/4641 ,  H04L45/50 ,  H04L45/68

摘要： Novel tools and techniques are described for mitigating data loss during failover in a VPLS multi-homed network. In one aspect, a primary link might be established between a lowest numbered provider edge (“PE”) router in the service provider network and a lowest numbered physical site at customer premises outside the service provider network. A stability site might be established within the service provider network, communicatively coupled to at least the lowest numbered PE router via a primary virtual circuit. The stability site might be designated as the lowest numbered virtual site, which might have a site ID number lower than the lowest numbered physical site. In response to the primary link failing or becoming broken, one or more backup virtual circuits might be established between a plurality of ingress PE routers and a plurality of egress PE routers in the service provider network, without destroying the primary virtual circuit.

摘要翻译： 描述了用于在VPLS多归属网络中的故障转移期间减轻数据丢失的新型工具和技术。 在一个方面，可以在服务提供商网络中的最小编号的提供商边缘（“PE”）路由器与服务提供商网络之外的客户驻地的最低编号的物理站点之间建立主链路。 可以在服务提供商网络内建立稳定性站点，通过主虚拟电路通信地耦合到至少最低编号的PE路由器。 稳定性站点可能被指定为最低编号的虚拟站点，其可能的站点ID号低于最低编号的物理站点。 响应于主链路故障或断开，可以在多个入口PE路由器和服务提供商网络中的多个出口PE路由器之间建立一个或多个备份虚拟电路，而不破坏主虚拟电路。