公开(公告)号：US09178816B1

公开(公告)日：2015-11-03

申请号：US14040487

申请日：2013-09-27

Applicant: Juniper Networks, Inc.

Inventor： Deepak Ojha ,  Shrinivasa Kini ,  Pankaj Shukla ,  Manoj Sharma ,  John E. Drake

IPC: H04W8/00 ,  H04L12/741

CPC classification number: H04L12/4641 ,  H04L45/02 ,  H04L45/66 ,  H04L45/74

Abstract: In general, techniques are described for providing control plane messaging in an active-active (or all-active) configuration of a multi-homed EVPN environment. In some examples, the techniques include receiving a control plane message comprising at least one address that identifies that second PE network device. The techniques may include configuring, based at least in part on the control plane message, a forwarding plane of a first PE network device to identify network packets having respective destination addresses that match the at least one address. The techniques may include determining that at least one address of the network packet matches the at least one address that identifies the second PE network device. The techniques may include, responsive to the determination, skipping a decrement of the Time-To-Live (TTL) value of the network packet, and forwarding the network packet to the second PE network device.

Abstract translation: 一般来说，描述了在多宿主EVPN环境的主动（主动）（或全部））配置中提供控制平面消息传递的技术。 在一些示例中，技术包括接收包含标识该第二PE网络设备的至少一个地址的控制平面消息。 这些技术可以包括至少部分地基于控制平面消息配置第一PE网络设备的转发平面，以识别具有与至少一个地址匹配的相应目的地地址的网络分组。 这些技术可以包括确定网络包的至少一个地址与标识第二PE网络设备的至少一个地址匹配。 所述技术可以包括响应于确定，跳过网络分组的生存时间（TTL）值的减少，并且将网络分组转发到第二PE网络设备。

公开(公告)号：US09019814B1

公开(公告)日：2015-04-28

申请号：US13959731

申请日：2013-08-05

Applicant: Juniper Networks, Inc.

Inventor： Satya Ranjan Mohanty ,  Wen Lin ,  John E. Drake

IPC: G06F11/00 ,  H04L12/24 ,  H04L12/707 ,  H04L12/703

CPC classification number: H04L41/08 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28

Abstract: In general, techniques are provided for receiving a first control plane message that indicates the reachability of the second PE network device as a designated forwarder in an Ethernet segment. The techniques include receiving a second control plane message comprising information that indicates, in the event of a network failure at the second PE router, that the third PE network device of the plurality of PE network devices is the designated forwarder in the layer two segment. The techniques also include forwarding layer two frames to the second PE network device identified as the designated forwarder in the layer two segment; and responsive to determining a network failure at the second PE network device, configuring, based at least in part on the second control plane message, a forwarding plane of the first PE network device to forward layer two frames to the third PE network device as the designated forwarder.

Abstract translation: 通常，提供了用于接收指示第二PE网络设备作为以太网段中的指定转发器的可达性的第一控制平面消息的技术。 所述技术包括接收第二控制平面消息，其包括在第二PE路由器发生网络故障的情况下指示所述多个PE网络设备中的所述第三PE网络设备是所述第二层中指定的转发器的信息。 这些技术还包括将第二层帧转发到被识别为第二层段中的指定转发器的第二PE网络设备; 并且响应于确定所述第二PE网络设备处的网络故障，至少部分地基于所述第二控制平面消息来配置所述第一PE网络设备的转发平面，以将所述第二PE网络设备转发到所述第三PE网络设备，作为 指定货运代理