FLOODING PACKETS ON A PER-VIRTUAL-NETWORK BASIS
    11.
    发明申请
    FLOODING PACKETS ON A PER-VIRTUAL-NETWORK BASIS 有权
    在虚拟网络基础上对流水线进行分组

    公开(公告)号:US20110299531A1

    公开(公告)日:2011-12-08

    申请号:US13044301

    申请日:2011-03-09

    IPC分类号: H04L12/56

    摘要: Methods and techniques for flooding packets on a per-virtual-network basis are described. Some embodiments provide a method (e.g., a switch) which determines an internal virtual network identifier based on one or more fields in a packet's header. Next, the method performs a forwarding lookup operation based on the internal virtual network identifier. If the forwarding lookup operation succeeds, the method can process and forward the packet accordingly. However, if the forwarding lookup operation fails, the method can determine a set of egress ports based on the internal virtual network identifier. Next, for each egress port in the set of egress ports, the method can flood the packet if a virtual network identifier in the packet's header is associated with the egress port. Flooding packets on a per-virtual-network basis can substantially reduce the amount of resources required to flood the packet when a forwarding lookup operation fails.

    摘要翻译: 描述了在每个虚拟网络基础上洪泛数据包的方法和技术。 一些实施例提供了一种基于分组头部中的一个或多个字段来确定内部虚拟网络标识符的方法(例如交换机)。 接下来,该方法基于内部虚拟网络标识符执行转发查找操作。 如果转发查找操作成功,则该方法可以相应地处理和转发报文。 然而,如果转发查找操作失败,则该方法可以基于内部虚拟网络标识符来确定一组出口端口。 接下来,对于出口端口集合中的每个出口端口,如果分组报头中的虚拟网络标识符与出口端口相关联,则该方法可以洪泛该分组。 基于虚拟网络的洪泛数据包可以在转发查找操作失败时大大减少洪泛数据包所需的资源量。

    PRESERVING QUALITY OF SERVICE ACROSS TRILL NETWORKS
    12.
    发明申请
    PRESERVING QUALITY OF SERVICE ACROSS TRILL NETWORKS 审中-公开
    保持网络服务质量

    公开(公告)号:US20110299414A1

    公开(公告)日:2011-12-08

    申请号:US13048817

    申请日:2011-03-15

    IPC分类号: H04L12/26

    摘要: Systems and techniques for processing and/or forwarding packets are described. An ingress switch can use a QoS mapping mechanism to map a first set of Quality of Service (QoS) bits in a packet received from a customer to a second set of QoS bits for use in a Transparent Interconnection of Lots of Links (TRILL) packet which encapsulates the packet. The first set of QoS bits can be different from the second set of QoS bits. The TRILL packet can be processed and/or forwarded in the network based on the second set of QoS bits. At the egress switch, the TRILL packet can be decapsulated and the original packet with the original QoS bits (or QoS bits that are different from the original QoS bits) can be forwarded to the customer's network. In this manner, some embodiments of the present invention can preserve the QoS bits across a TRILL network.

    摘要翻译: 描述用于处理和/或转发分组的系统和技术。 入口交换机可以使用QoS映射机制来将从客户端接收的分组中的第一组服务质量(QoS)比特映射到第二组QoS比特,以用于多个链路(TRILL)分组的透明互连 它封装了数据包。 第一组QoS位可以与第二组QoS位不同。 TRILL分组可以基于第二组QoS比特在网络中被处理和/或转发。 在出口交换机上,可以对TRILL数据包进行解封装,将原始QoS位(或不同于原始QoS位的QoS位)的原始数据包转发到客户的网络。 以这种方式,本发明的一些实施例可以保持跨TRILL网络的QoS比特。

    METHOD AND SYSTEM FOR REMOTE LOAD BALANCING IN HIGH-AVAILABILITY NETWORKS
    14.
    发明申请
    METHOD AND SYSTEM FOR REMOTE LOAD BALANCING IN HIGH-AVAILABILITY NETWORKS 审中-公开
    高可用性网络远程负载均衡的方法与系统

    公开(公告)号:US20120163164A1

    公开(公告)日:2012-06-28

    申请号:US13092873

    申请日:2011-04-22

    IPC分类号: H04L12/56 H04L12/26

    摘要: A system is provided for facilitating remote load balancing in a high-availability network. During operation, the system receives a plurality of data frames destined for a destination device, wherein the destination device is coupled to a network via a trunk link, the trunk link coupling the destination device to at least two separate egress switching devices. The system then forwards the data frames via at least two data paths, each of which leads to a respective egress switching device.

    摘要翻译: 提供了一种用于促进高可用性网络中的远程负载平衡的系统。 在操作期间,系统接收去往目的地设备的多个数据帧,其中目的地设备经由中继链路耦合到网络,中继链路将目的地设备耦合到至少两个单独的出口交换设备。 然后,系统经由至少两个数据路径转发数据帧,每个数据路径通向相应的出口交换设备。

    Remote port mirroring
    18.
    发明授权
    Remote port mirroring 有权
    远程端口镜像

    公开(公告)号:US09246703B2

    公开(公告)日:2016-01-26

    申请号:US13044326

    申请日:2011-03-09

    IPC分类号: H04L12/46

    摘要: A switch that facilitates remote port mirroring is described. The switch can include an encapsulation mechanism and a forwarding mechanism. The encapsulation mechanism can be configured to encapsulate a copy of a first packet in a second packet, thereby preserving header information (e.g., a VLAN identifier and/or a TRILL header) of the first packet. The forwarding mechanism can be configured to forward the first packet using header information of the first packet, and forward the second packet using header information of the second packet. The second packet can be received at a destination switch which extracts the first packet from the second packet, and sends the first packet on a port which is coupled to a network analyzer.

    摘要翻译: 描述了有助于远程端口镜像的交换机。 交换机可以包括封装机制和转发机制。 封装机制可以被配置为将第一分组的副本封装在第二分组中,从而保留第一分组的报头信息(例如,VLAN标识符和/或TRILL报头)。 转发机制可以被配置为使用第一分组的报头信息转发第一分组,并且使用第二分组的报头信息转发第二分组。 可以在从第二分组提取第一分组的目的地交换机处接收第二分组,并且在耦合到网络分析器的端口上发送第一分组。

    EFFICIENT TRILL FORWARDING
    19.
    发明申请
    EFFICIENT TRILL FORWARDING 有权
    有效的追踪

    公开(公告)号:US20130003747A1

    公开(公告)日:2013-01-03

    申请号:US13365993

    申请日:2012-02-03

    IPC分类号: H04L12/56 H04L12/28

    摘要: One embodiment of the present invention provides a switch. The switch includes a storage and a lookup mechanism. The storage stores a first table that contains an entry corresponding to a media access control (MAC) address of a device and an identifier of a remote switch associated with the device. The storage also stores a second table that contains an entry indicating a local outgoing interface corresponding to the remote switch. The lookup mechanism identifies the local outgoing interface corresponding to the device based on the first table and the second table.

    摘要翻译: 本发明的一个实施例提供一种开关。 交换机包括存储和查找机制。 存储器存储包含与设备的媒体访问控制(MAC)地址相对应的条目和与该设备相关联的远程交换机的标识符的第一表。 存储器还存储包含指示对应于远程交换机的本地出站接口的条目的第二表。 查找机制基于第一表和第二表来识别对应于设备的本地出接口。

    REMOTE PORT MIRRORING
    20.
    发明申请
    REMOTE PORT MIRRORING 有权
    远程端口镜像

    公开(公告)号:US20110299532A1

    公开(公告)日:2011-12-08

    申请号:US13044326

    申请日:2011-03-09

    IPC分类号: H04L12/56

    摘要: A switch that facilitates remote port mirroring is described. The switch can include an encapsulation mechanism and a forwarding mechanism. The encapsulation mechanism can be configured to encapsulate a copy of a first packet in a second packet, thereby preserving header information (e.g., a VLAN identifier and/or a TRILL header) of the first packet. The forwarding mechanism can be configured to forward the first packet using header information of the first packet, and forward the second packet using header information of the second packet. The second packet can be received at a destination switch which extracts the first packet from the second packet, and sends the first packet on a port which is coupled to a network analyzer.

    摘要翻译: 描述了有助于远程端口镜像的交换机。 交换机可以包括封装机制和转发机制。 封装机制可以被配置为将第一分组的副本封装在第二分组中,从而保留第一分组的报头信息(例如,VLAN标识符和/或TRILL报头)。 转发机制可以被配置为使用第一分组的报头信息转发第一分组,并且使用第二分组的报头信息转发第二分组。 可以在从第二分组提取第一分组的目的地交换机处接收第二分组,并且在耦合到网络分析器的端口上发送第一分组。