公开(公告)号：US10588241B2

公开(公告)日：2020-03-10

申请号：US15977026

申请日：2018-05-11

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Joel Richard Goergen ,  Emanuele Umberto Giacometti ,  James Alexander Markevitch

IPC: H05K7/20 ,  G05D7/06 ,  G05B15/02 ,  H05K5/02

Abstract: In one embodiment, a method includes identifying removal of a module from a network device comprising a plurality of fans during an online removal process while the network device is operational, reducing fan speed in the network device to allow a hinged door to move to a closed position covering an opening from which the module was removed, and increasing the fan speed to maintain cooling in the network device.

公开(公告)号：US20190199449A1

公开(公告)日：2019-06-27

申请号：US15849959

申请日：2017-12-21

Applicant: Cisco Technology, Inc.

Inventor： Gilberto Loprieno ,  Scott Roy Fluhrer ,  Emanuele Umberto Giacometti

IPC: H04B10/85 ,  H04Q11/00 ,  H04J3/16 ,  H04L29/06 ,  H04L9/14

CPC classification number: H04B10/85 ,  H04J3/1652 ,  H04L9/14 ,  H04L63/0428 ,  H04L63/123 ,  H04Q11/0066

Abstract: A method divides data traffic into multiple optical transport units formatted according to an optical transport network (OTN) standard. The multiple optical transport units include a master optical network unit and one or more slave optical network units. Each optical network unit includes overhead and a payload. The overhead includes used overhead specifically defined in the OTN standard and unused overhead not specifically defined in the OTN standard. The method encrypts each optical network unit with a respective one of multiple encryption keys, defines security control parameters identifying the multiple encryption keys, and inserts the security control parameters into the unused overhead of a first slave optical network unit among the one or more slave optical network units. The method transmits the optical network units in encrypted form.