公开(公告)号：WO2003055151A1

公开(公告)日：2003-07-03

申请号：PCT/US2002/002905

申请日：2002-02-01

Applicant: CRANITE SYSTEMS, INC.

Inventor： VOLPANO, Dennis, Michael

IPC: H04L12/28

CPC classification number: H04L63/0272 ,  H04L12/4641 ,  H04L12/467 ,  H04L63/08 ,  H04L63/123 ,  Y10S370/911

Abstract: A mechanism for segregating traffic amongst STAs that are associated with a bridge, referred to herein as the personal virtual bridged local area network (personal VLAN), is based upon the use of a VLAN to segregate traffic. The IEEE 802.1Q-1998 (virtual bridged LANs) protocol provides a mechanism that is extended by the invention to partition a LAN segment logically into multiple VLANs. In the preferred embodiment, a VLAN bridge forwards unicast and group frames only to those ports that serve the VLAN to which the frames belong. One embodiment of the invention extends the standard VLAN bridge model to provide a mechanism that is suitable for use within an AP.

Abstract translation: 在本文中称为个人虚拟桥接局域网（个人VLAN）的与网桥相关联的STA之间分离流量的机制基于使用VLAN隔离流量。 IEEE 802.1Q-1998（虚拟桥接LAN）协议提供了一种通过本发明扩展以将LAN段逻辑地划分成多个VLAN的机制。 在优选实施例中，VLAN网桥将单播和组帧转发到为帧所属的VLAN提供服务的端口。 本发明的一个实施例扩展了标准VLAN桥模型，以提供适合在AP内使用的机制。

公开(公告)号：WO2004042984A3

公开(公告)日：2004-05-21

申请号：PCT/US2003/034855

申请日：2003-10-30

Applicant: CRANITE SYSTEMS, INC.

Inventor： VOLPANO, Dennis, Michael ,  ZHAO, Xinhua, J.

IPC: H04L9/00

Abstract: The invention comprises three extensions of the IEEE 802.1Q VLAN bridge model. The first extension is the cryptographic separation of VLANs (28, 29) over trunk links (16). A LAN segment type referred to as an encapsulated LAN segment is introduced. All frames on such a segment are encapsulated according to an encryption and authentication code scheme. The second extension is the division of a trunk port into inbound (20, 21) and outbound ports (33, 32). The third extension is a protocol that automatically infers for each outbound port in a bridged VLAN (p3, p4), a set of LAN segment types for the port that minimizes the number of transfers between encapsulated and unencapsulated segments required to transport a frame in the bridged VLAN (p3, p4).

公开(公告)号：WO2005069784A3

公开(公告)日：2005-08-04

申请号：PCT/US2004/042078

申请日：2004-12-14

Applicant: CRANITE SYSTEMS, INC.

Inventor： VOLPANO, Dennis, Michael

IPC: H04L12/28 ,  H04L9/32

Abstract: The invention instantiates a Personal VLAN bridge (31), using IEEE Std. 802.11 elements. The result is a bridge (31), referred to as a public access point (31), that is better suited for implementing public wireless data networks (32) than the IEEE Std. 802.11 architecture. The invention also provides a location-update protocol for updating the forwarding tables of bridges (31) that connect public access points together. The invention further provides a method for more controlled bridging, which is referred to as fine bridging.

公开(公告)号：WO2004042984A2

公开(公告)日：2004-05-21

申请号：PCT/US0334855

申请日：2003-10-30

Applicant: CRANITE SYSTEMS INC

Inventor： VOLPANO DENNIS MICHAEL ,  ZHAO XINHUA J

IPC: H04L12/46 ,  H04L29/06 ,  H04L

CPC classification number: H04L63/0272 ,  H04L9/3242 ,  H04L9/3273 ,  H04L12/462 ,  H04L12/4641 ,  H04L12/4645 ,  H04L12/467 ,  H04L63/0227 ,  H04L63/0435 ,  H04L63/062 ,  H04L63/0869 ,  H04L63/123 ,  H04L63/126 ,  H04L2209/80

Abstract: The invention comprises three extensions of the IEEE 802.1Q VLAN bridge model. The first extension is the cryptographic separation of VLANs over trunk links. A LAN segment type referred to as an encapsulated LAN segment is introduced. All frames on such a segment are encapsulated according to an encryption and authentication code scheme. The second extension is the division of a trunk port into inbound and outbound ports. The third extension is a protocol that automatically infers for each outbound port in a bridged VLAN, a set of LAN segment types for the port that minimizes the number of transfers between encapsulated and unencapsulated segments required to transport a frame in the bridged VLAN.

Abstract translation: 本发明包括IEEE 802.1Q VLAN桥模型的三个扩展。 第一个扩展是通过中继链路加密分离VLAN。 引入了称为封装LAN段的LAN段类型。 这种片段上的所有帧根据加密和认证码方案进行封装。 第二个扩展是将中继端口划分为入站和出站端口。 第三个扩展是一个协议，可自动推荐桥接VLAN中的每个出站端口，该端口的一组LAN段类型可最大限度地减少在桥接VLAN中传输帧所需的封装和未封装段之间的传输次数。

公开(公告)号：WO2005069784A2

公开(公告)日：2005-08-04

申请号：PCT/US2004042078

申请日：2004-12-14

Applicant: CRANITE SYSTEMS INC

Inventor： VOLPANO DENNIS MICHAEL

IPC: H04L12/56 ,  H04L12/28 ,  H04L12/46 ,  H04L29/06

CPC classification number: H04W12/08 ,  H04L12/4625 ,  H04L12/4641 ,  H04L12/4645 ,  H04L63/0272 ,  H04L63/08 ,  H04L63/105 ,  H04L63/123 ,  H04W40/023 ,  H04W64/00 ,  H04W84/12 ,  H04W88/10 ,  H04W92/02

Abstract: The invention instantiates a Personal VLAN bridge, using IEEE Std. 802.11 elements. The result is a bridge, referred to as a public access point, that is better suited for implementing public wireless data networks than the IEEE Std. 802.11 architecture. The invention also provides a location-update protocol for updating the forwarding tables of bridges that connect public access points together. The invention further provides a method for more controlled bridging, which is referred to as fine bridging.

Abstract translation: 本发明使用IEEE Std实例化个人VLAN桥接器。 802.11元素。 结果是被称为公共接入点的桥接器，比IEEE标准更适合于实现公共无线数据网络。 802.11架构。 本发明还提供了一种位置更新协议，用于更新将公共接入点连接在一起的桥接器的转发表。 本发明还提供了一种用于更受控制的桥接的方法，其被称为精细桥接。