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FASTER CONVERGENCE ON PRIMARY PROVIDER EDGE (PE) FAILURE IN A SINGLE-ACTIVE REDUNDANCY TOPOLOGY

机译:单活动冗余拓扑中主供应商边缘(PE)故障的更快收敛

摘要

A method is provided that is implemented by a network device. The method is for expediting convergence to a backup provider edge (PE) in response to a failure of a primary PE in a single- active redundancy topology of an Ethernet Segment having a multi-homed customer edge (CE), where the network device functions as the backup PE in the Ethernet segment. The method includes detecting a failure of the primary PE via an indication from the CE, changing known media access control (MAC) / internet protocol (IP) routes previously reachable via the primary PE to be reachable via alias of the backup PE, and sending MAC/IP route advertisements for the changed MAC/IP routes with incremented sequence numbers.
机译:提供了一种由网络设备实现的方法。该方法用于响应于具有多宿主客户边缘(CE)的以太网段的单活动冗余拓扑中的主PE的故障,加速到备用提供商边缘(PE)的收敛,其中网络设备起作用作为以太网网段中的备用PE。该方法包括:通过来自CE的指示来检测主要PE的故障;将先前通过主要PE可到达的已知媒体访问控制(MAC)/互联网协议(IP)路由改变为可通过备用PE的别名到达;以及发送更改后的具有递增序号的MAC / IP路由的MAC / IP路由公告。

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