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:
May. 18, 2010
Filed:
Apr. 20, 2007
Applicants:
Vipul Shah, Cupertino, CA (US);
Gnanaprakasam Pandian, Cupertino, CA (US);
Vamsi Mohan Kodavanty, Fremont, CA (US);
Arun Sastry, Palo Alto, CA (US);
Inventors:
Vipul Shah, Cupertino, CA (US);
Gnanaprakasam Pandian, Cupertino, CA (US);
Vamsi Mohan Kodavanty, Fremont, CA (US);
Arun Sastry, Palo Alto, CA (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/07 (2006.01);
U.S. Cl.
CPC ...
Abstract
In one embodiment a switch has active and standby LAYER 2 switch interfaces coupled, respectively, to device interfaces of first and second LAYER 2/LAYER 3 network devices. The active switch interface is configured to forward all egress traffic and accept all ingress traffic and the standby switch interface is configured to forward only IGMP messages and configured to block all ingress traffic.