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:
Nov. 02, 2021
Filed:
Mar. 31, 2020
Juniper Networks, Inc., Sunnyvale, CA (US);
Vasudevan Navaneetha Krishnan, Bangalore, IN;
Raveendra Torvi, Nashua, NH (US);
Srikanth Venakta Gandiboyina, Bangalore, IN;
Ashish Kumar, Bangalore, IN;
Srihari Ramachandra Sangli, Bangalore, IN;
Jimmy Jose, Hosur, IN;
Amit Arora, Bangalore, IN;
Harmeet Singh, Bangalore, IN;
Juniper Networks, Inc., Sunnyvale, CA (US);
Abstract
In general, this disclosure describes a network device that checks consistency between routing objects in a routing information base (RIB), a forwarding information base (FIB), and packet forwarding engine (PFE) forwarding tables. A method includes generating a marker that causes a routing protocol daemon, a control plane kernel, and PFEs of a network device to calculate zonal checksums for a plurality of zones using consistency values for each routing object within a RIB, a FIB, and corresponding forwarding tables respectively. The method includes performing a consistency check on the RIB, the FIB, and the forwarding tables to determine whether the routing objects in each of the RIB, the FIB, and the forwarding tables are consistent with each other. The method includes, when the RIB, the FIB, and the forwarding tables are not consistent, performing an action related to at least one of RIB, the FIB, or the forwarding tables.