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. 16, 2026
Filed:
Jan. 30, 2024
Cisco Technology, Inc., San Jose, CA (US);
Jakob Heitz, Santa Clara, CA (US);
Mankamana Prasad Mishra, San Jose, CA (US);
Sameer R Gulrajani, Fremont, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Disclosed are methods, controllers, and network devices that reduce the impact of an out of resource event for a network device. In one example, a controller can analyze routing information to determine which of a plurality of prefixes are dispensable based on several factors, such as the specificity of the prefix, the frequency of use of the prefix, the geographic area through which the prefix passes, and the extent to which upstream network devices rely on the prefix. Thereafter, the controller can remove the dispensable prefixes to resolve the out of network condition. In another example, the network device itself performs the analysis of which prefixes are dispensable and communicates that information to the controller. In either scenario, the controller can reduce micro-loops and sub-optimal forwarding during an out of resource condition for the network device by removing prefixes that have a lesser impact on the network as a whole.