Yong Chun Kang

US Patent:

7848335, Dec 7, 2010

Filed:

Oct 27, 2005

Appl. No.:

11/260839

Inventors:

Yong Kang - San Jose CA, US
Changming Liu - Cupertino CA, US
Yonghui Cheng - Santa Clara CA, US

Assignee:

Juniper Networks, Inc. - Sunnyvale CA

International Classification:

H04L 12/28

US Classification:

370401, 370409

Abstract:

A virtual private network (VPN) tunnel is established that extends from a source spoke to a destination spoke in a hub-and-spoke enterprise network. Prior to establishing the VPN tunnel, packets are sent from the source spoke to the destination spoke through the hub network. In this manner, packets are not dropped while the VPN tunnel is being set up. The VPN tunnel is established by querying a server for the network address of a destination router in the destination spoke, then setting up the VPN tunnel using a secure communication protocol. An extension to the Internet Key Exchange (IKE) protocol is used to obtain the private network address of the destination router during setup of the VPN tunnel. A forwarding table is updated after the VPN tunnel is established to reroute the packets through the new VPN tunnel.

US Patent:

8218502, Jul 10, 2012

Filed:

May 14, 2008

Appl. No.:

12/120338

Inventors:

Changming Liu - Cupertino CA, US
Yong Kang - San Jose CA, US
Jianlin Zeng - San Jose CA, US
Sreekanth Reddy - San Jose CA, US

Assignee:

Aerohive Networks - Sunnyvale CA

International Classification:

H04W 4/00
H04W 40/00
H04W 72/00

US Classification:

370331, 4554321, 455445, 455453

Abstract:

Wireless access points detect neighboring wireless access points in different subnets. Upon connecting with a wireless client, a wireless access point determines predictive roaming information for the wireless client. Predictive roaming information identifies the wireless client; its home network subnet; and includes connection information associated with the wireless client. The wireless access point forwards the predictive roaming information associated with a wireless client to neighboring wireless access points while the wireless client is still connected with the wireless access point. Neighboring wireless access points store received predictive roaming information. Upon connecting with a wireless client, a neighboring wireless access point determines if the wireless client matches the stored predictive roaming information. If so, the neighboring wireless access point uses the predictive roaming information to quickly connect with the wireless client and to establish a tunnel to redirect network traffic associated with the wireless client through to its home subnet.

US Patent:

8483183, Jul 9, 2013

Filed:

Jun 20, 2012

Appl. No.:

13/528729

Inventors:

Changming Liu - Cupertino CA, US
Yong Kang - Palo Alto CA, US
Jianlin Zeng - San Jose CA, US
Sreekanth Reddy - Edison NJ, US

Assignee:

Aerohive Networks, Inc. - Sunnyvale CA

International Classification:

H04W 4/00

US Classification:

370331, 370332

Abstract:

Wireless access points detect neighboring wireless access points in different subnets. Upon connecting with a wireless client, a wireless access point determines predictive roaming information for the wireless client. Predictive roaming information identifies the wireless client; its home network subnet; and includes connection information associated with the wireless client. The wireless access point forwards the predictive roaming information associated with a wireless client to neighboring wireless access points while the wireless client is still connected with the wireless access point. Neighboring wireless access points store received predictive roaming information. Upon connecting with a wireless client, a neighboring wireless access point determines if the wireless client matches the stored predictive roaming information. If so, the neighboring wireless access point uses the predictive roaming information to quickly connect with the wireless client and to establish a tunnel to redirect network traffic associated with the wireless client through to its home subnet.

US Patent:

8582532, Nov 12, 2013

Filed:

Apr 20, 2012

Appl. No.:

13/452437

Inventors:

Changming Liu - Cupertino CA, US
Yong Kang - Palo Alto CA, US
Jianlin Zeng - San Jose CA, US
Sreekanth Reddy - Edison NJ, US

Assignee:

Aerohive Networks, Inc. - Sunnyvale CA

International Classification:

H04W 4/00

US Classification:

370331, 370332

Abstract:

A network device of a subnet determines predictive roaming information for a wireless client. Predictive roaming information can identify the wireless client and a home network subnet of the wireless client. The network device provides predictive roaming information associated with a wireless client to neighboring subnets. Neighboring subnets store received predictive roaming information, and use the predictive roaming information if the wireless client roams to them.

US Patent:

8614989, Dec 24, 2013

Filed:

Apr 20, 2012

Appl. No.:

13/452437

Inventors:

Changming Liu - Cupertino CA, US
Yong Kang - Palo Alto CA, US
Jianlin Zeng - San Jose CA, US
Sreekanth Reddy - Edison NJ, US

Assignee:

Aerohive Networks, Inc. - Sunnyvale CA

International Classification:

H04W 4/00

US Classification:

370331, 370332

Abstract:

A network device of a subnet determines predictive roaming information for a wireless client. Predictive roaming information can identify the wireless client and a home network subnet of the wireless client. The network device provides predictive roaming information associated with a wireless client to neighboring subnets. Neighboring subnets store received predictive roaming information, and use the predictive roaming information if the wireless client roams to them.

US Patent:

20080267116, Oct 30, 2008

Filed:

Sep 21, 2007

Appl. No.:

11/903443

Inventors:

Yong Kang - San Jose CA, US
Changming Liu - Cupertino CA, US

International Classification:

H04Q 7/00

US Classification:

370328

Abstract:

A method and system for selecting a route in a wireless network for the transmission of a data packet between wireless nodes in said network using a modified link-state routing algorithm wherein only a limited number of broadcast messages are generated to synchronize the link-state database throughout the wireless network. A subset of nodes called portal nodes within the network are elected to do the broadcasting for the entire network. Each portal node broadcasts an announcement of its identity to all of the wireless nodes. Each wireless node responds to these broadcasts to select one of the portal nodes as its root portal node. It then identifies a unicast route back to its root portal node, and sends a link-state register message to this portal node. These link-state register messages received by each portal node are aggregated by them and are broadcast to each of the wireless nodes for storage. When a data packet is thereafter received by a wireless node from a neighboring node, it detects if the data packet satisfies one of a plurality of predetermined conditions and rebroadcasts the data packet to neighboring wireless nodes if none of the conditions is satisfied.

US Patent:

20130294245, Nov 7, 2013

Filed:

Jul 9, 2013

Appl. No.:

13/937676

Inventors:

Yong Kang - Palo Alto CA, US
Jianlin Zeng - San Jose CA, US
Sreekanth Reddy - Edison NJ, US

International Classification:

H04W 36/00

US Classification:

370235, 370331

Abstract:

Wireless access points detect neighboring wireless access points in different subnets. Upon connecting with a wireless client, a wireless access point determines predictive roaming information for the wireless client. Predictive roaming information identifies the wireless client; its home network subnet; and includes connection information associated with the wireless client. The wireless access point forwards the predictive roaming information associated with a wireless client to neighboring wireless access points while the wireless client is still connected with the wireless access point. Neighboring wireless access points store received predictive roaming information. Upon connecting with a wireless client, a neighboring wireless access point determines if the wireless client matches the stored predictive roaming information. If so, the neighboring wireless access point uses the predictive roaming information to quickly connect with the wireless client and to establish a tunnel to redirect network traffic associated with the wireless client through to its home subnet.

US Patent:

20190165969, May 30, 2019

Filed:

Jan 15, 2019

Appl. No.:

16/248723

Inventors:

- Milpitas CA, US
Yong Kang - Palo Alto CA, US
Jianlin Zeng - San Jose CA, US
Sreekanth Reddy - Edison NJ, US

Assignee:

Aerohive Networks, Inc. - Milpitas CA

International Classification:

H04L 12/46
H04W 36/00
H04W 76/12
H04W 36/24
H04W 8/26
H04W 76/22
H04W 8/02
H04W 8/08
H04W 8/18
H04W 12/04
H04W 88/08
H04W 36/08

Abstract:

Wireless access points detect neighboring wireless access points in different subnets. Upon connecting with a wireless client, a wireless access point determines predictive roaming information for the wireless client. Predictive roaming information identifies the wireless client; its home network subnet; and includes connection information associated with the wireless client. The wireless access point forwards the predictive roaming information associated with a wireless client to neighboring wireless access points while the wireless client is still connected with the wireless access point. Neighboring wireless access points store received predictive roaming information. Upon connecting with a wireless client, a neighboring wireless access point determines if the wireless client matches the stored predictive roaming information. If so, the neighboring wireless access point uses the predictive roaming information to quickly connect with the wireless client and to establish a tunnel to redirect network traffic associated with the wireless client through to its home subnet.