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:
Aug. 21, 2012

Filed:

Mar. 30, 2010
Applicants:

Pirabhu Raman, San Jose, CA (US);

Dinesh Dutt, Sunnyvale, CA (US);

Mahesh Maddury, San Jose, CA (US);

Subbarao Arumilli, Santa Clara, CA (US);

Vijay Rangarajan, Fremont, CA (US);

Ray Kloth, Saratoga, CA (US);

Sanjay Sane, Fremont, CA (US);

Inventors:

Pirabhu Raman, San Jose, CA (US);

Dinesh Dutt, Sunnyvale, CA (US);

Mahesh Maddury, San Jose, CA (US);

Subbarao Arumilli, Santa Clara, CA (US);

Vijay Rangarajan, Fremont, CA (US);

Ray Kloth, Saratoga, CA (US);

Sanjay Sane, Fremont, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

In one embodiment, a method includes receiving a multi-destination packet at a switch in communication with a plurality of servers through a network device, identifying a port receiving the multi-destination packet at the switch or a forwarding topology for the multi-destination packet, selecting a bit value based on the identified port or forwarding topology, inserting the bit value into a field in a virtual network tag in the multi-destination packet, and forwarding the multi-destination packet with the virtual network tag to the network device. The network device is configured to forward the multi-destination packet to one or more of the servers based on the bit value in the multi-destination packet. An apparatus for forwarding multi-destination packets is also disclosed.


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