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:
Apr. 10, 2012
Filed:
Mar. 11, 2009
Sammy Chung, Saratoga, CA (US);
Dongyi Jiang, Milpitas, CA (US);
Tsai-zong Lin, Cupertino, CA (US);
Jin Shang, Newark, CA (US);
Anthony NG, Petaluma, CA (US);
Sammy Chung, Saratoga, CA (US);
Dongyi Jiang, Milpitas, CA (US);
Tsai-Zong Lin, Cupertino, CA (US);
Jin Shang, Newark, CA (US);
Anthony Ng, Petaluma, CA (US);
Juniper Networks, Inc., Sunnyvale, CA (US);
Abstract
A method may be performed by a device in a network, the device including multiple security process units (SPUs). The method includes receiving a packet over the network, the packet including a media access control (MAC) address, and assigning one SPU as the MAC address owner. The method also includes sending information about the MAC address to other SPUs within the device, storing the MAC address in a MAC table within each SPU, and initiating a MAC age query to confirm the MAC address has timed out among all SPUs. The MAC age query is passed via a logical ring of the SPUs beginning with the MAC address owner. If the MAC address is aged out at each SPU, the MAC address is deleted from each MAC table. If the MAC entry is still active, a different SPU is assigned as the MAC address owner.