Patent ID: 9407526
Filing Date: 2016-08-02
CPC Classification: H04L

Claim Text:
1. A method comprising: generating, by an application executing on a routing engine that executes at least one routing protocol to control operation of a router, a packet, wherein the packet is a non-bidirectional forwarding detection (BFD) packet that does not encapsulate a BFD packet; receiving, by a packet forwarding engine of the router from the routing engine, the packet; forwarding, by the packet forwarding engine via a network interface coupled to the packet forwarding engine, the packet; and refreshing, by the packet forwarding engine in response to determining the packet is destined for a peer network device with which the router has a BFD session and without sending a BFD packet, a transmit timer for the BFD session that defines a transmission interval for sending BFD packets from the router to the peer network device.