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:
Oct. 20, 2015

Filed:

Sep. 14, 2012
Applicants:

Karthik Subramanian Mandakolathur, Milpitas, CA (US);

Hsitung Huang, Saratoga, CA (US);

Sha MA, San Jose, CA (US);

Inventors:

Karthik Subramanian Mandakolathur, Milpitas, CA (US);

Hsitung Huang, Saratoga, CA (US);

Sha Ma, San Jose, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); G01R 31/08 (2006.01); H04L 12/761 (2013.01); H04L 12/18 (2006.01);
U.S. Cl.
CPC ...
H04L 45/16 (2013.01); H04L 12/185 (2013.01);
Abstract

In a multicast networking device having a plurality of output ports, a hierarchical packet scheduling tree is generated for a first port. The hierarchical packet scheduling tree is generated from a transmission queue for the first port. A sequential search of the hierarchical scheduling tree is performed to determine a packet pointer to a first packet in the transmission queue of the first port. Based on the packet pointer, packet data for the first packet is obtained and the first packet comprising the packet data is transmitted to a destination device via the first port.


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