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:
Nov. 29, 2022

Filed:

Oct. 20, 2020
Applicant:

Ciena Corporation, Hanover, MD (US);

Inventors:

Sami Boutros, Union City, CA (US);

Muthurajah Sivabalan, Kanata, CA;

Pranav Mehta, San Jose, CA (US);

Assignee:

Ciena Corporation, Hanover, MD (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 45/02 (2022.01); H04L 45/74 (2022.01); H04L 12/46 (2006.01);
U.S. Cl.
CPC ...
H04L 45/02 (2013.01); H04L 45/74 (2013.01); H04L 12/4641 (2013.01);
Abstract

Systems and methods include determining one or more Layer 3 Virtual Private Networks (L3VPNs) supported at the router; and advertising the one or more L3 VPNs to one or more routers in the Segment Routing network with each advertisement including a service Segment Identifier (SID) for each of the one or more L3VPNs and one of a node SID for the router or an Anycast SID when the router is connected to a Multi-Home site. The steps can further include transmitting a Layer 3 (L3) packet for an L3 VPN of the one or more L3 VPNs with a destination SID and a service SID of the L3VPN. The advertisement can include encapsulation as an IPv6 prefix containing both the node SID for the router and the service SID, and wherein prefixes are treated as attributes of a route.


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