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:
Aug. 02, 2022
Filed:
May. 11, 2020
Arista Networks, Inc., Santa Clara, CA (US);
Naveen Kumar Devaraj, San Jose, CA (US);
Rajshekhar Biradar, Bengaluru, IN;
Arista Networks, Inc., Santa Clara, CA (US);
Abstract
The disclosure describes processing packets in connection with a traceroute session in an overlay network that includes detecting traceroute probes using static and dynamic rules and using the time to live (TTL) value in a received traceroute probe to compute an outer TTL value. The TTL value (inner TTL) of the received probe is updated based on the number of underlay routers (hops) comprising the underlay network that are detected during the traceroute session. The received probe with its updated TTL value is encapsulated in an outer frame that includes the computed outer TTL value. The number of hops is updated each time an underlay router sends an ICMP time exceeded message.