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, 2020
Filed:
Dec. 09, 2016
Cisco Technology, Inc., San Jose, CA (US);
Sameer Dilip Merchant, Sunnyvale, CA (US);
Sarang Dharmapurikar, Cupertino, CA (US);
Praveen Jain, Cupertino, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Techniques for providing a reflexive access control list (ACL) on a virtual switch are provided. Embodiments receive a first packet corresponding to a first network flow and a second packet corresponding to a second network flow. Upon determining that a SYN flag is set within the first packet, a first entry is created in the reflexive ACL for the first network flow. Upon determining that the first packet was received over a client port of the first physical switch, the first packet is forwarded to a second physical switch within virtual switch. Upon determining that the second packet has a SYN flag enabled, a second entry is created in the reflexive ACL. Finally, upon determining that the second packet was received from the second physical switch, the second packet is forwarded over an uplink port to a destination defined by the second packet.