US 12,407,604 B2
Loop protection in a network
Rashmi Venkatesh, Karnataka (IN)
Assigned to Hewlett Packard Enterprise Development LP, Spring, TX (US)
Filed by HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP, Spring, TX (US)
Filed on Aug. 11, 2023, as Appl. No. 18/448,272.
Prior Publication US 2025/0055787 A1, Feb. 13, 2025
Int. Cl. H04L 45/28 (2022.01); H04L 45/00 (2022.01); H04L 45/74 (2022.01)
CPC H04L 45/28 (2013.01) [H04L 45/566 (2013.01); H04L 45/74 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A forwarding device for a network, comprising:
a port; and
a controller to:
detect a network loop for the port,
determine whether a quantity of network loop detections for the port exceeds a threshold,
based on determining that the quantity of network loop detections for the port exceeds the threshold, add a first information element indicating an identity of the forwarding device to a payload of a loop protect packet, and
send the loop protect packet containing the first information element from the port to the network,
wherein the controller is to compute the threshold based on a total quantity of detected network loops on the port, and
wherein the total quantity of detected network loops on the port comprises a sum of quantities of network loops detected for a plurality of virtual local area networks (VLANs) that comprise the port.