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.

Date of Patent:
Feb. 13, 2018

Filed:

Oct. 16, 2014
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Ayaskant Pani, Fremont, CA (US);

Tianpei Zhang, Cupertino, CA (US);

Sanjay Thyamagundalu, Sunnyvale, CA (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 12/761 (2013.01); H04L 12/753 (2013.01); H04L 12/46 (2006.01);
U.S. Cl.
CPC ...
H04L 65/4076 (2013.01); H04L 12/4633 (2013.01); H04L 12/4645 (2013.01); H04L 45/16 (2013.01); H04L 45/48 (2013.01); H04L 69/22 (2013.01); H04L 2012/4629 (2013.01); Y02B 60/43 (2013.01);
Abstract

An inner packet configured with a multicast address and configured to perform a traceroute operation through a network is encapsulated to form an encapsulated packet. The encapsulated packet is sent into a network, the encapsulated packet being forwarded along a multicast tree of the network for the multicast address. A plurality of responses are received from a plurality of network nodes comprising the multicast tree, wherein each response comprises an indication of a node of the plurality of nodes that sends the response and an indication of a node from which the node sending the response received the encapsulated packet.


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