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:
Jul. 20, 2021
Filed:
Oct. 29, 2019
Cisco Technology, Inc., San Jose, CA (US);
Changhong Shen, Shanghai, CN;
Yu Zhang, Shanghai, CN;
Xiaorong Wang, Shanghai, CN;
Pu Duan, Shanghai, CN;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
According to some embodiments, a method performed by a software defined wide area network (SD-WAN) controller in a SD-WAN network comprising a plurality of aggregation edge routers and a plurality of branch edge routers comprises the following steps. The method comprises: receiving, from each of the plurality of branch edge routers, a transmit location (TLOC) publication comprising a quality of service (QoS) attribute of one or more TLOCs configured on the branch edge router; determining a QoS policy based on the received TLOC publications; transmitting the QoS policy to the plurality of aggregation edge routers; receiving, from a branch edge router of the plurality of branch edge routers, a first congestion indication indicating that bandwidth utilization on a wide area network (WAN) interface of the branch edge router exceeds a first threshold; determining an updated QoS policy based on the received TLOC publications and the first congestion indication to reduce congestion at the branch edge router; and transmitting the updated QoS policy to the plurality of aggregation edge routers.