Personal virtual bridged local area networks
    1.
    发明公开
    Personal virtual bridged local area networks 有权
    Persönlichevirtuelleüberbrücktlokale Netzwerke

    公开(公告)号:EP2640008A3

    公开(公告)日:2014-12-10

    申请号:EP13171251.5

    申请日:2002-02-01

    IPC分类号: H04L12/28 H04L12/46 H04L29/06

    摘要: The invention provides a method for segregating traffic amongst a plurality of stations that are associated with an access point, comprising the steps of providing a protocol for virtual local area network (VLAN) discovery; allowing a station to create a new port that serves a new VLAN, or to join an existing VLAN; maintaining more than one logical port per physical port; and providing cryptographic VLAN separation, wherein traffic within one VLAN is separated from another VLAN on a same physical port by cryptography.

    摘要翻译: 本发明提供了一种用于分离与网桥相关联的站(STA)之间的业务的装置,包括使用VLAN隔离业务的个人虚拟桥接局域网(个人VLAN)。

    METHODS FOR SEARCHING A KNOWLEDGE BASE
    3.
    发明公开
    METHODS FOR SEARCHING A KNOWLEDGE BASE 审中-公开
    方法知识库的搜索

    公开(公告)号:EP1032895A1

    公开(公告)日:2000-09-06

    申请号:EP98946126.4

    申请日:1998-09-21

    申请人: Obtek, L.L.C.

    发明人: BENNETT, Victor

    IPC分类号: G06F17/30

    摘要: A method and apparatus is provided for searching a knowledge base to determine whether a search object matches any of a plurality of knowledge base entries. When the knowledge base includes a partially matched entry, the group of partially matched entries (elements (3, 5, 7, 9, and 11) in the figure) is identified. Thereafter, at least one previously unselected search object bit is selected and examined to determine whether the group of partially matched entries includes a further matched entry the represents the same bit pattern in its bit that corresponds to the previously unselected search object bit and when it does not, the search is terminated indicating no match.

    PROGRAMMABLE SOURCE ADDRESS LOCKING MECHANISM FOR SECURE NETWORKS
    5.
    发明公开
    PROGRAMMABLE SOURCE ADDRESS LOCKING MECHANISM FOR SECURE NETWORKS 失效
    可编程封闭装置从源头详细信息安全网络

    公开(公告)号:EP0791260A1

    公开(公告)日:1997-08-27

    申请号:EP95937557.0

    申请日:1995-10-11

    发明人: LO, William

    IPC分类号: H04L12

    摘要: In a managed repeater (10) having an address learn capability wherein receipt at a particular port (30) of a data packet having a received source address different from a stored source address associated with the particular port replaces the stored source address with the received source address, a source address locking circuit includes an address learn circuit associated with the particular port, for replacing the stored source address with the received source address when the stored source address does not match the received source address, and an address lock register for the particular port, coupled to the address learn circuit, for storing a bit value to disable the address learn circuit from replacing the stored source address with the received source address. This managed repeater provides improved security in a network having source address updating by allowing an administrator to disable the source address update for a particular port in the managed repeater. Each address lock register is externally programmable, and the administrator is able to program time windows to disable source address updating for a particular port. The administrator may program each address lock register independently to prevent the stored source address associated with each port from being updated. The managed repeater allows the administrator to determine on a per port basis whether the managed repeater's address learning capability should be enabled or disabled for a programmable time window.

    METHODS FOR SEARCHING A KNOWLEDGE BASE
    7.
    发明公开
    METHODS FOR SEARCHING A KNOWLEDGE BASE 审中-公开
    VERFAHREN ZUM DURCHSUCHEN EINER WISSENS-BASIS

    公开(公告)号:EP1032895A4

    公开(公告)日:2006-06-14

    申请号:EP98946126

    申请日:1998-09-21

    申请人: OBTEK L L C

    发明人: BENNETT VICTOR

    IPC分类号: G06F17/30

    摘要: A method and apparatus is provided for searching a knowledge base to determine whether a search object matches any of a plurality of knowledge base entries. When the knowledge base includes a partially matched entry, the group of partially matched entries (elements (3, 5, 7, 9, and 11) in the figure) is identified. Thereafter, at least one previously unselected search object bit is selected and examined to determine whether the group of partially matched entries includes a further matched entry the represents the same bit pattern in its bit that corresponds to the previously unselected search object bit and when it does not, the search is terminated indicating no match.

    摘要翻译: 提供了一种用于搜索知识库以确定搜索对象是否匹配多个知识库条目中的任何一个的方法和装置。 最初,选择和检查至少一个搜索对象比特以确定知识库是否包括表示其相应比特中的相同比特模式的部分匹配的条目,并且如果不存在,则搜索终止,表示不匹配。 当知识库确实包括部分匹配的条目时,识别部分匹配条目的组。 此后,选择和检查至少一个先前未选择的搜索对象比特以确定部分匹配条目的组是否包括表示与其先前未选择的搜索对象比特相对应的比特中的相同比特模式的进一步匹配的条目 不是,搜索终止,表示没有匹配。 当知识库确实包括进一步匹配的条目时,更新部分匹配条目的组以仅识别进一步部分匹配的条目。 然后,确定搜索对象的每个位是否已经被选择,并且当它已经被选择时,指示一部分匹配的条目的匹配,并且搜索被终止。 当确定每个搜索对象比特尚未被选择时,选择新的搜索对象比特并且以上述方式进行搜索。

    Network switch with multiple bus architecture
    9.
    发明公开
    Network switch with multiple bus architecture 失效
    网络交换网络与多个总线

    公开(公告)号:EP0854611A3

    公开(公告)日:1999-06-16

    申请号:EP97310656.0

    申请日:1997-12-30

    IPC分类号: H04L12/44 H04L12/40 H04L12/56

    摘要: A network switch including one or more network ports for receiving and transmitting data, where each port includes a network interface, a data bus interface and a processor port interface. a data bus coupled to the data bus interface of each of the ports, a processor bus coupled to a processor and to the processor port interface of each of the ports, and a memory bus coupled to a memory. The network switch further includes a switch manager coupled to the data bus, the processor bus and the memory bus for controlling data flow between the ports and said memory and for enabling the processor access to the ports and the memory. In this manner, the processor has direct and relatively independent access to the network ports for performing overhead functions, such as monitoring, determining status and configuration without consuming valuable bandwidth of the data bus.

    A programmable arbitration system for determining priority of the ports of a network switch
    10.
    发明公开
    A programmable arbitration system for determining priority of the ports of a network switch 失效
    程序设计师Arbitrierungssystem zur Bestimmung derPrioritätvon Toren eines Netzwerkkoppelfelds

    公开(公告)号:EP0854614A2

    公开(公告)日:1998-07-22

    申请号:EP97310665.1

    申请日:1997-12-30

    摘要: A programmable arbitration system including control logic to select one of several arbitration schemes for selecting the ports of a network switch, a memory to store priority values indicating the relative priority of each of the ports, monitor logic to monitor each of the ports and to program the priority values in the memory based on a priority scheme selected by the control logic, and arbitration logic to select a port having the next highest priority. The arbitration schemes preferably include a round-robin priority scheme, a first-come, first-served (FCFS) priority scheme, a weighted priority scheme, or any other desirable priority scheme. The monitor logic includes polling logic to periodically poll the ports and to program a priority value of each port. The memory includes receive and transmit lists to indicate of which of the ports have indicated needing service and a corresponding priority value. The arbitration logic includes a receive arbiter and a transmit arbiter, each of which use a corresponding arbitration count.

    摘要翻译: 一种可编程仲裁系统,包括用于选择网络交换机的端口的若干仲裁方案之一的控制逻辑,存储指示每个端口的相对优先级的优先级值的存储器,监控每个端口的监视逻辑和编程 基于由控制逻辑选择的优先级方案的存储器中的优先级值,以及用于选择具有下一最高优先级的端口的仲裁逻辑。 仲裁方案优选地包括循环优先方案,先来先服务(FCFS)优先权方案,加权优先方案或任何其它所需优先权方案。 监视器逻辑包括轮询逻辑以定期轮询端口并编程每个端口的优先级值。 存储器包括接收和发送列表,以指示哪些端口指示需要服务和相应的优先级值。 仲裁逻辑包括接收仲裁器和发送仲裁器,每个仲裁器使用相应的仲裁计数。