Richard B Blanchette

US Patent:

8018900, Sep 13, 2011

Filed:

Dec 28, 2006

Appl. No.:

11/646904

Inventors:

Richard H. Blanchette - Hopkinton MA, US
Martin Bouchard - Montréal, CA
Anil Gupta - Shrewsbury MA, US
Yannick Koehler - Montréal, CA
Gilbert Moineau - Lachine, CA
Fréderic D. Mouveaux - Laval, CA
Roger D. Sands - Princeton MA, US
Pierre Trudeau - Lorraine, CA

Assignee:

Hewlett-Packard Company - Palo Alto CA

International Classification:

H04W 4/00
H04W 36/00
H04L 12/28

US Classification:

370331, 370338, 370401, 4554321, 455436, 455442

Abstract:

To enable devices to detect L3 roaming users and to take appropriate forwarding actions, L3 knowledge is introduced inside a bridge in a non-intrusive way. In particular, as a client moves from a subnet associated with a first network element to a subnet associated with a second network element, a determination is made regarding whether the client is roaming. This is done by evaluating a source IP address within a L3 packet header within a first frame received at the second network element. If, as a result of the evaluating step, it is determined that the client is roaming, an L2 bridge forwarding table in the second network element is configured to include a source MAC address of the client together with information identifying at least a destination interface for use in directing client data traffic back towards the subnet associated with the first network element. The first frame is then forwarded. In one embodiment, the traffic is directed back towards the subnet associated with the first network element via a GRE encapsulation tunnel, although any convenient tunneling mechanism can be used.

US Patent:

8503396, Aug 6, 2013

Filed:

Aug 4, 2011

Appl. No.:

13/198084

Inventors:

Richard H. Blanchette - Hopkinton MA, US
Martin Bouchard - Montréal, CA
Anil Gupta - Shrewsbury MA, US
Yannick Koehler - Montréal, CA
Gilbert Moineau - Lachine, CA
Fréderic D. Mouveaux - Laval, CA
Roger D. Sands - Princeton MA, US
Pierre Trudeau - Lorraine, CA

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04W 4/00
H04H 20/71
H04L 12/66
H04L 12/28
H04B 1/16

US Classification:

370331, 370312, 370328, 370352, 370401, 3703952, 455436, 4554322

Abstract:

To enable a network apparatus to detect L3 roaming users and to take appropriate forwarding actions, L3 knowledge is introduced inside an L2 bridge forwarding table in the network apparatus. As a client moves from a subnet associated with a first network element to a subnet associated with the network apparatus, a determination is made regarding whether the client is roaming by evaluating a source IP address within a L3 packet header within a first frame received at the network apparatus. If, as a result of the evaluating step, it is determined that the client is roaming, the L2 bridge forwarding table is configured to include a source MAC address of the client together with information identifying a destination interface for use in directing client data traffic back towards the subnet associated with the first network element.

US Patent:

8611358, Dec 17, 2013

Filed:

Apr 6, 2011

Appl. No.:

13/081310

Inventors:

Stephane Laroche - Montreal, CA
Jocelyn Le Sage - St-Colomban, CA
Richard H. Blanchette - Hopkinton MA, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

H04L 12/66
H04J 3/22
G06F 15/16

US Classification:

370400, 370463, 370466, 709218, 709227

Abstract:

A method for mobile computer networking on a distributed network includes, with a network element of a local network, establishing a connection to a mobile client device, determining a home network of the mobile client device without using a logical address of a packet of data from the mobile client device, and forwarding network traffic from the mobile client device to a home network of the mobile client device in response to determining that the home network is not the local network.

US Patent:

20120257502, Oct 11, 2012

Filed:

Apr 7, 2011

Appl. No.:

13/081766

Inventors:

Jocelyn Le Sage - St-Colomban, CA
Stephane Laroche - Montreal, CA
Richard H. Blanchette - Hopkinton MA, US

International Classification:

H04W 28/08

US Classification:

370235

Abstract:

Managing network traffic includes associating a wireless client device with a wireless access point comprising at least one processor with said wireless access point, identifying a network to which said wireless client device is assigned; and with said wireless access point, assigning said wireless client device to one of a plurality of Virtual Local Area Networks (VLANs) implemented within said network according to a protocol for balancing network traffic across the plurality of VLANs.

US Patent:

20120260120, Oct 11, 2012

Filed:

Apr 7, 2011

Appl. No.:

13/081934

Inventors:

Yves Mongeau - Laval, CA
Richard H. Blanchette - Hopkinton MA, US

International Classification:

G06F 11/07
G06F 15/16

US Classification:

714 2, 714E11007

Abstract:

A method of controller election includes, upon failure of a master controller within a team comprising a number of controllers, automatically promoting another of the number controllers to serve as an elected master controller and designating the elected master controller as a new master controller if it is determined that the failure of the master controller is not temporary.