Patent · US Active

Security over optical transport network beyond 100G

US10985847B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Gilberto Loprieno · Milano, IT
Scott Fluhrer · Sunnyvale, US
Emanuele Umberto Giacometti · Torino, IT

Key dates

Filing date	Dec 21, 2017
Grant date	Apr 20, 2021
Priority date	—
Expiry date	Sep 2, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/34
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.