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Impending control plane disruption indication using forwarding plane liveliness detection protocols
Impending control plane disruption indication using forwarding plane liveliness detection protocols
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机译:使用转发平面活动性检测协议的即将发生的控制平面破坏指示
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摘要
Techniques are described for providing an indication of an impending control plane disruption of a router using forwarding plane liveliness detection protocols. A forwarding plane of the router outputs liveliness detection messages that, when received by a peer router, provide an indication that the forwarding plane is operational and able to forward packets. When constructing the liveliness detection messages, the forwarding plane may embed additional information indicative of any impending disruption in the control plane of the network device. In this way, the forwarding plane of the transmitting router provides an indication to the peer router that, although currently operational, the control plane of the router may in the near term become non-operational. The peer router, in response to receiving an enhanced liveliness detection message indicating an impending control plane disruption, suppresses a recovery action otherwise triggered by a loss of communication with a control plane of the network device.
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