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:
Dec. 27, 2022
Filed:
Feb. 03, 2020
Cisco Technology, Inc., San Jose, CA (US);
K Tirumaleswar Reddy, Karnataka, IN;
Prashanth Patil, San Jose, CA (US);
Carlos M. Pignataro, Cary, NC (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method for resuming a Transport Layer Security (TLS) session in a Service Function Chain comprising a plurality of Service Function nodes coupled to a Service Function Forwarder. A request is received at a first Service Function node to establish a TLS session, and a Pre-Shared Key (PSK) and a PSK identifier that uniquely correspond to the first Service Function node and the TLS session are generated. The PSK identifier is forwarded to one or more of the Service Function Forwarder and the plurality of Service Function nodes. A request to resume the TLS session is received from a client device that previously disconnected. It is determined that the connection request contains the PSK identifier, a second Service Function node is selected, and the TLS session is re-established between the client device and the second Service Function node using the same PSK as the prior TLS session.