公开(公告)号：US08411688B2

公开(公告)日：2013-04-02

申请号：US12933200

申请日：2009-03-16

申请人： János Farkas ,  Csaba Antal ,  Attila Takács

发明人： János Farkas ,  Csaba Antal ,  Attila Takács

IPC分类号： H04L12/28

CPC分类号： H04L12/4645 ,  H04L29/12349 ,  H04L45/02 ,  H04L45/22 ,  H04L45/28 ,  H04L45/66 ,  H04L61/2507 ,  H04L2212/00

摘要： A method is provided for use at a first node of a network. The first node (B) has an input path for receiving Ethernet frames destined for a second node of the network. The first node (B) also has a first output (working) path for forwarding the received Ethernet frames towards the second node. A failure along the first output (working) path is detected at the first node. Following such failure detection, the received Ethernet frames are caused, at the first node, to be re-routed along a second output (backup) path, different to the first output (working) path, towards the second node. The re-routing is performed by using (e.g. referring to and/or changing) respective indications (VLAN1) applied to the Ethernet frames to distinguish those Ethernet frames to be forwarded along the first output (working) path from those Ethernet frames to be forwarded along the second output (backup) path.

摘要翻译： 提供了一种在网络的第一节点使用的方法。 第一节点（B）具有用于接收去往网络的第二节点的以太网帧的输入路径。 第一节点（B）还具有用于将接收到的以太网帧转发到第二节点的第一输出（工作）路径。 在第一个节点处检测到沿着第一个输出（工作）路径的故障。 在这种故障检测之后，在第一节点处引起接收的以太网帧沿着与第一输出（工作）路径不同的第二输出（备用）路径被重新路由到第二节点。 通过使用（例如参考和/或改变）应用于以太网帧的各个指示（VLAN1）来执行重新路由以区分将沿着要转发的那些以太网帧沿着第一输出（工作）路径转发的以太网帧 沿着第二个输出（备份）路径。

公开(公告)号：US20110116418A1

公开(公告)日：2011-05-19

申请号：US13054430

申请日：2008-11-15

申请人： János Farkas ,  Csaba Antal ,  Attila Takács

发明人： János Farkas ,  Csaba Antal ,  Attila Takács

IPC分类号： H04L12/28

CPC分类号： H04L45/48 ,  H04L12/462 ,  H04L12/4641 ,  H04L45/02 ,  H04L45/66

摘要： A registration protocol for setting up and updating a tree that defines the active topology in an Ethernet network includes a plurality of application components and a plurality of attribute declaration components corresponding to the application components, wherein the application components declare and register attribute values and the corresponding attribute declaration components make and withdraw registration of the attributes.

摘要翻译： 用于设置和更新在以太网中定义活动拓扑的树的注册协议包括多个应用组件和对应于应用组件的多个属性声明组件，其中应用组件声明并注册属性值和对应的 属性声明组件制作和撤销属性的注册。

公开(公告)号：US08837329B2

公开(公告)日：2014-09-16

申请号：US12525062

申请日：2008-01-18

申请人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

发明人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

IPC分类号： H04L12/28 ,  H04L12/705 ,  H04L12/721 ,  H04L12/751 ,  H04L12/703 ,  H04L12/753 ,  H04L12/46 ,  H04L12/24

CPC分类号： H04L12/462 ,  H04L41/069 ,  H04L41/0853 ,  H04L41/0856 ,  H04L41/12 ,  H04L45/02 ,  H04L45/12 ,  H04L45/18 ,  H04L45/28 ,  H04L45/48

摘要： There is disclosed a method and apparatus for facilitating a network, such as an Ethernet LAN, for efficient forwarding of data traffic by collecting neighbor information, generating and distributing link state advertisements, populating a topology database for the network, and calculating trees for each bridge serving as a root bridge. In a preferred embodiment the method and system also prepare one or more backup topologies, and store them for use if they are needed due to a failure condition detected in the network. In a particularly preferred embodiment, probabilities are assigned to various potential failure conditions, and the probability values are used to decide which backup topologies to calculate, store, or use.

摘要翻译： 公开了一种方法和装置，用于通过收集邻居信息，生成和分发链路状态通告，填充网络的拓扑数据库以及计算每个网桥的树，从而方便诸如以太网LAN的网络来有效地转发数据流量 作为根桥。 在优选实施例中，方法和系统还准备一个或多个备用拓扑，并且如果由于在网络中检测到故障状况而需要，则存储它们以供使用。 在特别优选的实施例中，将概率分配给各种潜在的故障条件，并且概率值用于决定要计算，存储或使用哪些备份拓扑。

公开(公告)号：US08467317B2

公开(公告)日：2013-06-18

申请号：US13414927

申请日：2012-03-08

申请人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

发明人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L12/462 ,  H04L45/02 ,  H04L45/025 ,  H04L45/04 ,  H04L45/48

摘要： There is disclosed a manner of managing the active topology, that is the scheme for forwarding data, in a computer network such as an Ethernet local area network. A root bridge is selected from a plurality of bridges in the network; the root bridge calculating at least one spanning tree from a topology database that has been populated by bridge neighbor information gleaned from link state advertising messages. The root bridge may also calculate an alternate topology for implementation in the event a failure condition that affects the primary spanning tree is detected. The root bridge then advertises the spanning tree and remotely configures the port states of the bridges in the spanning tree through tree advertising messages that the bridges are arranged to process and set their ports accordingly.

摘要翻译： 公开了在诸如以太网局域网的计算机网络中管理活动拓扑的方式，即用于转发数据的方案。 从网络中的多个桥中选择根桥; 根桥从已经从链接状态广告消息收集的桥接邻居信息填充的拓扑数据库中计算至少一个生成树。 如果检测到影响主生成树的故障条件，则根桥也可以计算备用拓扑。 根桥然后通告生成树，并通过树形广告消息远程配置生成树中的网桥的端口状态，桥梁被布置为相应地处理和设置其端口。

公开(公告)号：US20120170489A1

公开(公告)日：2012-07-05

申请号：US13414927

申请日：2012-03-08

申请人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

发明人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

IPC分类号： H04L12/44

CPC分类号： H04L12/462 ,  H04L45/02 ,  H04L45/025 ,  H04L45/04 ,  H04L45/48

摘要： There is disclosed a manner of managing the active topology, that is the scheme for forwarding data, in a computer network such as an Ethernet local area network. A root bridge is selected from a plurality of bridges in the network; the root bridge calculating at least one spanning tree from a topology database that has been populated by bridge neighbor information gleaned from link state advertising messages. The root bridge may also calculate an alternate topology for implementation in the event a failure condition that affects the primary spanning tree is detected. The root bridge then advertises the spanning tree and remotely configures the port states of the bridges in the spanning tree through tree advertising messages that the bridges are arranged to process and set their ports accordingly.

摘要翻译： 公开了在诸如以太网局域网的计算机网络中管理活动拓扑的方式，即用于转发数据的方案。 从网络中的多个桥中选择根桥; 根桥从已经从链接状态广告消息收集的桥接邻居信息填充的拓扑数据库中计算至少一个生成树。 如果检测到影响主生成树的故障条件，则根桥也可以计算备用拓扑。 根桥然后通告生成树，并通过树形广告消息远程配置生成树中的网桥的端口状态，桥梁被布置为相应地处理和设置其端口。

公开(公告)号：US08155030B2

公开(公告)日：2012-04-10

申请号：US12523781

申请日：2008-01-18

申请人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

发明人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L12/462 ,  H04L45/02 ,  H04L45/025 ,  H04L45/04 ,  H04L45/48

摘要： There is disclosed a manner of managing the active topology, that is the scheme for forwarding data, in a computer network such as an Ethernet local area network. A root bridge is selected from a plurality of bridges in the network; the root bridge calculating at least one spanning tree from a topology database that has been populated by bridge neighbor information gleaned from link state advertising messages. The root bridge may also calculate an alternate topology for implementation in the event a failure condition that affects the primary spanning tree is detected. The root bridge then advertises the spanning tree and remotely configures the port states of the bridges in the spanning tree through tree advertising messages that the bridges are arranged to process and set their ports accordingly.

摘要翻译： 公开了在诸如以太网局域网的计算机网络中管理活动拓扑的方式，即用于转发数据的方案。 从网络中的多个桥中选择根桥; 根桥从已经从链接状态广告消息收集的桥接邻居信息填充的拓扑数据库中计算至少一个生成树。 如果检测到影响主生成树的故障条件，则根桥也可以计算备用拓扑。 根桥然后通告生成树，并通过树形广告消息远程配置生成树中的网桥的端口状态，桥梁被布置为相应地处理和设置其端口。

公开(公告)号：US08867409B2

公开(公告)日：2014-10-21

申请号：US13054430

申请日：2008-11-15

申请人： János Farkas ,  Csaba Antal ,  Attila Takács

发明人： János Farkas ,  Csaba Antal ,  Attila Takács

IPC分类号： H04L12/28 ,  H04L12/751 ,  H04L12/721 ,  H04L12/753 ,  H04L12/46

CPC分类号： H04L45/48 ,  H04L12/462 ,  H04L12/4641 ,  H04L45/02 ,  H04L45/66

摘要： A registration protocol for setting up and updating a tree that defines the active topology in an Ethernet network includes a plurality of application components and a plurality of attribute declaration components corresponding to the application components, wherein the application components declare and register attribute values and the corresponding attribute declaration components make and withdraw registration of the attributes.

摘要翻译： 用于设置和更新在以太网中定义活动拓扑的树的注册协议包括多个应用组件和对应于应用组件的多个属性声明组件，其中应用组件声明并注册属性值和对应的 属性声明组件制作和撤销属性的注册。

公开(公告)号：US20110080854A1

公开(公告)日：2011-04-07

申请号：US12525062

申请日：2008-01-18

申请人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

发明人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

IPC分类号： H04L12/28

CPC分类号： H04L12/462 ,  H04L41/069 ,  H04L41/0853 ,  H04L41/0856 ,  H04L41/12 ,  H04L45/02 ,  H04L45/12 ,  H04L45/18 ,  H04L45/28 ,  H04L45/48

摘要： There is disclosed a method and apparatus for facilitating a network, such as an Ethernet LAN, for efficient forwarding of data traffic by collecting neighbor information, generating and distributing link state advertisements, populating a topology database for the network, and calculating trees for each bridge serving as a root bridge. In a preferred embodiment the method and system also prepare one or more backup topologies, and store them for use if they are needed due to a failure condition detected in the network. In a particularly preferred embodiment, probabilities are assigned to various potential failure conditions, and the probability values are used to decide which backup topologies to calculate, store, or use.

摘要翻译： 公开了一种方法和装置，用于通过收集邻居信息，生成和分发链路状态通告，填充网络的拓扑数据库以及计算每个网桥的树，从而方便诸如以太网LAN的网络来有效地转发数据流量 作为根桥。 在优选实施例中，方法和系统还准备一个或多个备用拓扑，并且如果由于在网络中检测到故障状况而需要，则存储它们以供使用。 在特别优选的实施例中，将概率分配给各种潜在的故障条件，并且概率值用于决定要计算，存储或使用哪些备份拓扑。

公开(公告)号：US20110013640A1

公开(公告)日：2011-01-20

申请号：US12933200

申请日：2009-03-16

申请人： János Farkas ,  Csaba Antal ,  Attila Takács

发明人： János Farkas ,  Csaba Antal ,  Attila Takács

IPC分类号： H04L12/28

CPC分类号： H04L12/4645 ,  H04L29/12349 ,  H04L45/02 ,  H04L45/22 ,  H04L45/28 ,  H04L45/66 ,  H04L61/2507 ,  H04L2212/00

摘要： A method is provided for use at a first node of a network. The first node (B) has an input path for receiving Ethernet frames destined for a second node of the network. The first node (B) also has a first output (working) path for forwarding the received Ethernet frames towards the second node. A failure along the first output (working) path is detected at the first node. Following such failure detection, the received Ethernet frames are caused, at the first node, to be re-routed along a second output (backup) path, different to the first output (working) path, towards the second node. The re-routing is performed by using (e.g. referring to and/or changing) respective indications (VLAN1) applied to the Ethernet frames to distinguish those Ethernet frames to be forwarded along the first output (working) path from those Ethernet frames to be forwarded along the second output (backup) path.

摘要翻译： 提供了一种在网络的第一节点使用的方法。 第一节点（B）具有用于接收去往网络的第二节点的以太网帧的输入路径。 第一节点（B）还具有用于将接收到的以太网帧转发到第二节点的第一输出（工作）路径。 在第一个节点处检测到沿着第一个输出（工作）路径的故障。 在这种故障检测之后，在第一节点处引起接收的以太网帧沿着与第一输出（工作）路径不同的第二输出（备用）路径被重新路由到第二节点。 通过使用（例如参考和/或改变）应用于以太网帧的各个指示（VLAN1）来执行重新路由以区分将沿着要转发的那些以太网帧沿着第一输出（工作）路径转发的以太网帧 沿着第二个输出（备份）路径。

公开(公告)号：US20100054157A1

公开(公告)日：2010-03-04

申请号：US12523781

申请日：2008-01-18

申请人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

发明人： János Farkas ,  Csaba Antal ,  Attila Takács ,  Panagiotis Saltsidis

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L12/462 ,  H04L45/02 ,  H04L45/025 ,  H04L45/04 ,  H04L45/48

摘要： There is disclosed a manner of managing the active topology, that is the scheme for forwarding data, in a computer network such as an Ethernet local area network. A root bridge is selected from a plurality of bridges in the network; the root bridge calculating at least one spanning tree from a topology database that has been populated by bridge neighbor information gleaned from link state advertising messages. The root bridge may also calculate an alternate topology for implementation in the event a failure condition that affects the primary spanning tree is detected. The root bridge then advertises the spanning tree and remotely configures the port states of the bridges in the spanning tree through tree advertising messages that the bridges are arranged to process and set their ports accordingly.

摘要翻译： 公开了在诸如以太网局域网的计算机网络中管理活动拓扑的方式，即用于转发数据的方案。 从网络中的多个桥中选择根桥; 根桥从已经从链接状态广告消息收集的桥接邻居信息填充的拓扑数据库中计算至少一个生成树。 如果检测到影响主生成树的故障条件，则根桥也可以计算备用拓扑。 根桥然后通告生成树，并通过树形广告消息远程配置生成树中的网桥的端口状态，桥梁被布置为相应地处理和设置其端口。