US 11,743,114 B1
Bidirectional forwarding detection control packet to indicate maintenance mode operation
Sounak Mukherjee, Bangalore (IN); Srinivasa Rao Nandyala, Bangalore (IN); and Himanshu Kumar Tambakuwala, Bengaluru (IN)
Assigned to Juniper Networks, Inc., Sunnyvale, CA (US)
Filed by Juniper Networks, Inc., Sunnyvale, CA (US)
Filed on Jul. 27, 2021, as Appl. No. 17/443,509.
Application 17/443,509 is a continuation of application No. 16/577,520, filed on Sep. 20, 2019, granted, now 11,088,897.
Int. Cl. H04L 41/0677 (2022.01); H04L 41/0654 (2022.01); H04L 41/0686 (2022.01); H04L 45/12 (2022.01); H04L 47/11 (2022.01)
CPC H04L 41/0677 (2013.01) [H04L 41/0672 (2013.01); H04L 41/0686 (2013.01); H04L 45/123 (2013.01); H04L 47/115 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
transitioning, by a first network device, to a maintenance mode associated with enabling maintenance of the first network device;
generating, by the first network device and based on transitioning to the maintenance mode, a packet that includes a field indicating that the first network device is in the maintenance mode; and
transmitting, by the first network device and to a second network device, the packet to permit the second network device to perform an action based on the field indicating that the first network device is in the maintenance mode,
wherein the action includes increasing a route cost of a route associated with a link between the first network device and the second network device.