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:
Oct. 23, 2018
Filed:
Jul. 21, 2016
Cisco Technology, Inc., San Jose, CA (US);
Natarajan Manthiramoorthy, San Jose, CA (US);
Venkatesh Srinivasan, San Jose, CA (US);
Swaminathan Narayanan, San Jose, CA (US);
Ambrish Niranjan Mehta, San Jose, CA (US);
Anand Kumar Singh, San Jose, CA (US);
Anulekha Chodey, San Jose, CA (US);
CISCO TECHNOLOGY, INC., San Jose, CA (US);
Abstract
Systems, methods, and non-transitory computer-readable storage media for detecting network loops. In some embodiments, a system can identify a port that is in a blocking state. The blocking state can be for dropping one or more types of packets and preventing the port from forwarding the one or more types of packets. The system can determine a number of packets transmitted through the port by a hardware layer on the system and a number of control packets transmitted through the port by a software layer on the system. The system can determine whether the number of packets is greater than the number of control packets. When the number of packets is greater than the number of control packets, the system can determine that the blocking state has failed to prevent the port from forwarding the one or more types of packets.