US Patent Issued on July 21 for "L2 switch detection method and program" (Japanese Inventor)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,558, issued on July 21.

"L2 switch detection method and program" was invented by Glenn Mansfield Keeni (Miyagi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is a method for detecting unregistered L2 (Layer-2) switches in a network, comprising of: a first step of collecting switch-port information from L2 switches Sj (1less than equal toj) registered in the management table by monitoring apparatus H, wherein, in the management table, the MAC addresses of L2 switches Sj are registered; a second step of detecting MAC addresses M(Zi) (1less than equal toj) of one or more unregistered apparatuses existing between L2 switches...