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:
Jun. 02, 2026
Filed:
Feb. 29, 2024
Cisco Technology, Inc., San Jose, CA (US);
Ankush Ganpatrai Arora, Mumbai, IN;
Vinay Saini, Bangalore, IN;
Atahar Khan, Bangalore, IN;
Ganesh Ramalingam Chelliah, Westmead, AU;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A system and method are provided for using a green score to improve environmental sustainability for routing traffic between and or/within autonomous systems (ASs). Node-level green scores are calculated based on environmental information of the nodes (e.g., locations, router type and electrical consumption, and location-dependent environmental impact of electrical production), and AS-level green scores are based on the node-level green score from the respective ASs. For intra-AS routing, node and adjacency labels are pushed to a headend path computation element client (PCC), and the label switched path (LSP) is determined based on the node-level green scores and the node and adjacency labels. For inter-AS routing, the AS having a better AS-level green score is preferred, when the routes through the respective ASs are equal-cost multi-path (ECMP) routes. Exit nodes between ASs are selected based on the node-level green scores.