The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2025
Filed:
Mar. 28, 2022
Arista Networks, Inc., Santa Clara, CA (US);
Kaustav Majumdar, Bengaluru, IN;
Manish Singhvi, Bengaluru, IN;
ARISTA NETWORKS, INC., Santa Clara, CA (US);
Abstract
Embodiments allow a network device whose hardware limits an Association Number (AN) to only {0, 1}, to be part of Media Access Control security (MACsec). Upon detecting a network device as being AN-limited, that device's priority value is assigned a maximum value, thereby ensuring election of the AN-limited device as the key server. The {0, 1} AN of the key server is used to generate a Secure Association Key (SAK) used for MACsec. Upon subsequent rekeying, the AN-limited key server automatically cycles to a next AN (either 0 or 1) to generate a new SAK, where that next AN is also recognized by other network devices. In this manner, the AN-limited network device can participate in the MACsec without encountering ANs (e.g., {2, 3}) that it does not recognize.