STP root guard
    12.
    发明授权
    STP root guard 有权
    STP根护

    公开(公告)号:US07545757B2

    公开(公告)日:2009-06-09

    申请号:US11292652

    申请日:2005-12-02

    CPC分类号: H04L45/48 H04L45/02 H04L45/18

    摘要: A method of managing a computer network switch is disclosed. The method has the steps of: setting a port of the switch to root guard protected status (RG status); selecting by a spanning tree protocol (STP) the port as a designated port; and setting said port into blocked status, in response to said port being both in root guard protected status and selected by STP as a root port. By setting a port to root guard protected, the port is prevented from becoming a designated port, and so then forcing the root port to remain in a desired core network.

    摘要翻译: 公开了一种管理计算机网络交换机的方法。 该方法具有以下步骤:将交换机的端口设置为根保护状态(RG状态); 通过生成树协议(STP)选择端口作为指定端口; 并将所述端口设置为阻塞状态,以响应所述端口都处于根保护保护状态,并且由STP作为根端口选择。 通过将端口设置为保护保护,防止端口成为指定端口,从而强制根端口保留在所需的核心网络中。

    STP root guard
    13.
    发明申请

    公开(公告)号:US20060092862A1

    公开(公告)日:2006-05-04

    申请号:US11292652

    申请日:2005-12-02

    IPC分类号: H04L12/28

    CPC分类号: H04L45/48 H04L45/02 H04L45/18

    摘要: A method of managing a computer network switch is disclosed. The method has the steps of: setting a port of the switch to root guard protected status (RG status); selecting by a spanning tree protocol (STP) the port as a designated port; and setting said port into blocked status, in response to said port being both in root guard protected status and selected by STP as a root port. By setting a port to root guard protected, the port is prevented from becoming a designated port, and so then forcing the root port to remain in a desired core network.

    STP root guard
    14.
    发明授权
    STP root guard 有权
    STP根护

    公开(公告)号:US06987740B1

    公开(公告)日:2006-01-17

    申请号:US09658880

    申请日:2000-09-11

    IPC分类号: H04L12/28

    CPC分类号: H04L45/48 H04L45/02 H04L45/18

    摘要: The Spanning Tree Protocol (STP) chooses a root switch. Each of the other switches has a “root” port and one or more “designated ports(s)” chosen by STP. Packets are transmitted upstream toward the root switch through the root port, and packets designated for downstream switches from the root switch are received by the root port and transmitted through the designated ports. In the invention, an administrator of the core network identifies which switch ports in the core network are boundary ports to customer networks. The administrator designates the boundary ports as “root guard protected” ports (RG ports). The STP then executes as required by the ordinary STP protocol, and if a RG port is selected by the STP to be a root portm then the status of the port is set to “blocked,” and no packets are transmitted through the port.

    摘要翻译: 生成树协议(STP)选择根交换机。 每个其他交换机具有“根”端口和一个或多个由STP选择的“指定端口”。 数据包通过根端口向根交换机上游传输,根交换机指定用于下游交换机的数据包由根端口接收并通过指定端口传输。 在本发明中,核心网络的管理员识别核心网络中哪些交换机端口是到客户网络的边界端口。 管理员将边界端口指定为“根保护保护”端口(RG端口)。 STP然后根据普通STP协议的要求执行,如果由STP选择RG端口作为根端口,则端口的状态被设置为“阻塞”,并且不会通过端口传输数据包。

    Restartable spanning tree for high availability network systems
    15.
    发明授权
    Restartable spanning tree for high availability network systems 失效
    用于高可用性网络系统的可重新生成树

    公开(公告)号:US06898189B1

    公开(公告)日:2005-05-24

    申请号:US09644377

    申请日:2000-08-23

    摘要: A method and apparatus for continuing the operation of a spanning tree protocol at a network device despite crashes or failures at that device. A supervisor card contained in the network device is designated an active supervisor, while all other supervisor cards are designated standby supervisors. The active supervisor runs the spanning tree protocol, and informs the standby supervisors of the states of ports, but not of the identity of the root or designated bridges. When a crash or failure occurs at the active supervisor, one of the standby supervisors is immediately designated to be the new active supervisor. The newly active supervisor reviews the port state, and queries the line cards to determine whether that port state information is still valid. The newly active supervisor adopts the valid port state information, leaving those ports in their current spanning tree port state.

    摘要翻译: 一种用于在网络设备上继续执行生成树协议的方法和装置,尽管在该设备上发生故障或故障。 包含在网络设备中的主管卡被指定为主管主管,而所有其他管理卡被指定为备用主管。 主动管理器运行生成树协议,并向备用主管通知端口状态,但不指定根或指定网桥的身份。 当主动主管发生故障或故障时,其中一个备用主管将被立即指定为新的主动主管。 最新的主管审查端口状态,并查询线卡以确定该端口状态信息是否仍然有效。 新主管主管采用有效的端口状态信息,使端口处于当前生成树端口状态。

    Efficient network multicast switching apparatus and methods
    16.
    发明授权
    Efficient network multicast switching apparatus and methods 有权
    高效网络组播切换设备及方法

    公开(公告)号:US06804236B1

    公开(公告)日:2004-10-12

    申请号:US10266043

    申请日:2002-10-07

    IPC分类号: H04L1228

    CPC分类号: H04L12/4641 H04L12/467

    摘要: Efficient switched network multicasting techniques are provided. Incoming multicast packets are processed by a central forwarding engine (CFE) in a network switch to generate forwarding indices used to make forwarding decisions for the packets based upon whether the packets are special multicast control packets or data packets. Forwarding of the special multicast control packets is determined by the switch's network management processor (NMP), while data packets are forwarded based upon conventional bridge forwarding techniques.

    摘要翻译: 提供高效的交换网络组播技术。 来自组播数据包由网络交换机中的中央转发引擎(CFE)进行处理,以生成用于根据分组是特殊组播控制分组还是数据分组对分组进行转发决定的转发索引。 特殊组播控制包的转发由交换机的网络管理处理器(NMP)决定,而数据包则根据传统的桥接转发技术进行转发。

    Logical partitioning of a physical device
    17.
    发明授权
    Logical partitioning of a physical device 有权
    物理设备的逻辑分区

    公开(公告)号:US08949662B2

    公开(公告)日:2015-02-03

    申请号:US13543671

    申请日:2012-07-06

    摘要: In one embodiment, an indication of a fault condition is received relating to a first service running on a physical device in a computer network. The first service is associated with a first virtual device context defined on the physical device. Then, the first service is disabled without affecting operation of a second service on the physical device. The second service is associated with a second virtual device context defined on the physical device. In another embodiment, a first virtual device context is created on a physical device in a computer network. Then, a second virtual device context is created on the physical device. The first virtual device context may then be managed independently of the second virtual device context such that resources assigned to a virtual device context are managed without affecting management of another virtual device context.

    摘要翻译: 在一个实施例中,接收与在计算机网络中的物理设备上运行的第一服务有关的故障状况的指示。 第一服务与在物理设备上定义的第一虚拟设备上下文相关联。 然后,第一服务被禁用,而不影响物理设备上的第二服务的操作。 第二服务与在物理设备上定义的第二虚拟设备上下文相关联。 在另一个实施例中,在计算机网络中的物理设备上创建第一虚拟设备上下文。 然后,在物理设备上创建第二虚拟设备上下文。 然后可以独立于第二虚拟设备上下文管理第一虚拟设备上下文,使得分配给虚拟设备上下文的资源被管理,而不影响另一虚拟设备上下文的管理。

    Multiple instance spanning tree protocol
    18.
    发明授权
    Multiple instance spanning tree protocol 有权
    多实例生成树协议

    公开(公告)号:US08165043B2

    公开(公告)日:2012-04-24

    申请号:US11185057

    申请日:2005-07-20

    IPC分类号: H04L12/28

    摘要: A multiple instance spanning tree protocol (MI-STP) creates a plurality of active topologies (i.e., loop-free paths) within a computer network. These active topologies may be established through the exchange and processing of multiple instance spanning tree bridge protocol data unit messages (MI-STP BPDUs) by the intermediate network devices within the network. The active topologies are preferably created independently of any virtual local area network (VLAN) designations defined within the network. Once the active topologies are defined, each VLAN designation is then mapped to a single active topology, although multiple VLAN designations are preferably mapped to the same active topology to provide load balancing.

    摘要翻译: 多实例生成树协议(MI-STP)在计算机网络内创建多个活动拓扑(即,无环路径)。 这些活动拓扑可以通过网络中的中间网络设备交换和处理多个实例生成树桥协议数据单元消息(MI-STP BPDU)来建立。 活动拓扑优选地独立于在网络内定义的任何虚拟局域网(VLAN)指定而创建。 一旦定义了活动拓扑,则每个VLAN标识然后映射到单个活动拓扑,尽管多个VLAN名称最好映射到相同的活动拓扑以提供负载平衡。

    Intelligent event notification processing and delivery at a network switch
    19.
    发明授权
    Intelligent event notification processing and delivery at a network switch 有权
    网络交换机智能事件通知处理和传送

    公开(公告)号:US07586956B1

    公开(公告)日:2009-09-08

    申请号:US10982672

    申请日:2004-11-05

    IPC分类号: H04J3/12

    摘要: According to the present invention, methods and apparatus are provided for intelligently processing of event notification or callhome messages at a network switch. Alert groups are provided to allow select notification of entities based on the relevance or priority of an event. Destination profiles can be custom configured. A range of message formats are available for compatibility with services such as pager services, email, or XML-based automated parsing applications.

    摘要翻译: 根据本发明,提供了用于在网络交换机处智能处理事件通知或呼叫信息的方法和装置。 提供警报组以允许基于事件的相关性或优先级的实体的选择通知。 目标配置文件可以自定义配置。 一系列消息格式可用于与诸如寻呼机服务,电子邮件或基于XML的自动解析应用程序之类的服务兼容。

    High availability architecture for network devices
    20.
    发明授权
    High availability architecture for network devices 有权
    网络设备的高可用性架构

    公开(公告)号:US07061858B1

    公开(公告)日:2006-06-13

    申请号:US09714246

    申请日:2000-11-16

    IPC分类号: G01R31/08

    摘要: A method and apparatus allows for continued operation of one or more applications running at a network device with reduced delay despite crashes or failures at that device. The network device includes two or more supervisor cards for running the applications and a plurality of line cards. According to the invention, one supervisor card is designated the active supervisor card and one supervisor card is designated the standby supervisor card. As changes in state and other operating conditions take place on the active supervisor events are generating for passing at least some of this information to the standby supervisor where it is stored. Following a crash or failure of the active supervisor card, the standby becomes the newly active supervisor card. The standby supervisor performs a consistency check with the line cards and resets those that fail the check. The standby supervisor also determines which data records and state information stored at the standby supervisor are valid, and begins running the applications loaded onto the device. Those data records and state information determined by the standby supervisor to be valid are utilized by the applications in continuing their operation, while invalid data records and state information are discarded.

    摘要翻译: 一种方法和装置允许在网络设备上运行的一个或多个应用继续运行,尽管在该设备上发生故障或故障,但延迟延迟。 网络设备包括用于运行应用的两个或更多个管理卡和多个线卡。 根据本发明,一个管理卡被指定为主动管理卡,一个管理卡被指定为备用主管卡。 由于状态和其他操作条件的改变发生在活动主管上,所产生的事件将至少部分信息传送到备用主管,在该主管处存储。 在活动主管卡出现故障或故障后,备用电源将成为新建的主管卡。 备用主管使用线路卡进行一致性检查,并重新设置检查失败的那些。 备用主管还确定在备用主管上存储的哪些数据记录和状态信息有效,并开始运行加载到设备上的应用程序。 被备用主管确定为有效的那些数据记录和状态信息被应用程序用于继续操作,而无效数据记录和状态信息被丢弃。