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.

Date of Patent:
Sep. 16, 2025

Filed:

May. 23, 2022
Applicant:

Google Llc, Mountain View, CA (US);

Inventors:

Arivudainambi Appachi Gounder, San Jose, CA (US);

Edward Crabbe, Seattle, WA (US);

Madhu Venugopal, Cupertino, CA (US);

Stephen Stuart, Los Altos Hills, CA (US);

Assignee:

Google LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/46 (2006.01); H04L 45/745 (2022.01);
U.S. Cl.
CPC ...
H04L 12/4633 (2013.01); H04L 45/745 (2013.01);
Abstract

Implementations are provided for building a service function chain in a network that can remove the requirement to encapsulate packet level metadata or other packet levels in a service function chain. The approach allows for implementing service function chains while separating chain metadata from the service function so that service functions are not required to support handling service function chaining metadata. The approach can map a tunnel identifier of an encapsulated data packet to an attachment circuit of a service function and can rewrite the destination media access control (MAC) address of the data packet to the MAC address of the service function.


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