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. 02, 2018
Filed:
Jan. 09, 2013
Applicant:
Cisco Technology, Inc., San Jose, CA (US);
Inventors:
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/741 (2013.01); H04L 12/715 (2013.01); H04L 12/721 (2013.01); H04L 29/06 (2006.01); H04L 12/46 (2006.01);
U.S. Cl.
CPC ...
H04L 45/74 (2013.01); H04L 12/4633 (2013.01); H04L 45/64 (2013.01); H04L 45/68 (2013.01); H04L 63/164 (2013.01);
Abstract
In one implementation, sub-interfaces are defined in Layer three (L3) tunnels, such as generic routing encapsulization (GRE) or Internet protocol security (IPsec) tunnels. Sub-interfaces inside a L3 tunnel may be preferred to using several L3 tunnels. The flow label of the tunnel header is used to define sub-interfaces of a tunnel interface. The flow label is populated with a routing instance identifier to index the sub-interfaces.