US 10,191,827 B2
Methods, systems, and computer readable media for utilizing loopback operations to identify a faulty subsystem layer in a multilayered system
Edris Abzakh, Rehaniya (IL)
Assigned to SANDISK TECHNOLOGIES LLC, Plano, TX (US)
Filed by SanDisk Technologies LLC, Plano, TX (US)
Filed on Aug. 29, 2016, as Appl. No. 15/250,843.
Prior Publication US 2018/0062970 A1, Mar. 1, 2018
Int. Cl. H04L 12/26 (2006.01); G06F 11/20 (2006.01); G06F 11/30 (2006.01); H04L 12/24 (2006.01)
CPC G06F 11/3006 (2013.01) [G06F 11/2007 (2013.01); H04L 41/0677 (2013.01); H04L 43/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for utilizing loopback operations to identify a faulty subsystem layer in a multilayered system, the method comprising:
executing a plurality of loopback operations using a respective plurality of loopback points positioned among subsystem layers of a multilayered system, wherein:
the plurality of loopback operations incrementally test loopback points in the plurality of loopback points; and
each loopback operation tests loopback points that have been previously tested during previously executed loopback operations;
detecting a failed loopback operation among the plurality of loopback operations; and
identifying a faulty subsystem layer among the subsystem layers by comparing the failed loopback operation against a previously conducted successful loopback operation corresponding to a preceding subsystem layer that is adjacent to the faulty subsystem layer within the multilayered system.