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:
Dec. 15, 2020

Filed:

May. 30, 2019
Applicant:

Ale Usa Inc., Calabasas, CA (US);

Inventors:

Abhishek Sinha, Bangalore North, IN;

Sandeep Kumar, Bangalore, IN;

Assignee:

ALE USA INC., Calabasas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/46 (2006.01); H04L 29/12 (2006.01); H04L 12/08 (2006.01); H04L 12/54 (2013.01); H04L 12/70 (2013.01);
U.S. Cl.
CPC ...
H04L 12/4641 (2013.01); H04L 12/08 (2013.01); H04L 12/56 (2013.01); H04L 61/2015 (2013.01); H04L 61/6022 (2013.01); H04L 2012/5617 (2013.01); H04L 2012/5618 (2013.01);
Abstract

A method and system are devised of moving at a NAS () a client () with a MAC address, from a first VLAN to a second VLAN. A leaf is comprised of at least one intermediate L2 bridge/switch () being connected to the NAS (). The client () is being connected to one () of the at least one intermediate L2 bridge/switches () in the leaf. The method and system involve sending at the NAS () a first message downlink () to intermediate L2 bridge/switches () in the leaf directly connected to the NAS. They further involve at each intermediate L2 bridge/switch () in the leaf: upon receiving the first message from uplink from the NAS () or an intermediate L2 bridge/switch () in the leaf, determining whether the client () is directly or indirectly connected to one of its ports; and if it is directly connected, bouncing the port to which the client () is connected, and sending a second message uplink to the NAS () or an intermediate L2 bridge/switch () in the leaf; if it is indirectly connected, sending the first message downlink on the port to which the client () is indirectly connected to an intermediate L2 bridge/switches () in the leaf; and if it is not connected, sending a third message uplink to the NAS () or an intermediate L2 bridge/switch () in the leaf. They further involve at each intermediate L2 bridge/switch () in the leaf: upon receiving the second or third message from downlink from an intermediate L2 bridge/switch () in the leaf, forwarding it uplink to the NAS () or an intermediate L2 bridge/switch () in the leaf. Finally the client () may initiate a DHCP request in the second VLAN.


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