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公开(公告)号:US09032095B1
公开(公告)日:2015-05-12
申请号:US10753026
申请日:2004-01-06
申请人: Paul S. Traina , Manoj Leelanivas , Steven Lin , Nischal Sheth , Wing Eng , Andrew H. Heffernan
发明人: Paul S. Traina , Manoj Leelanivas , Steven Lin , Nischal Sheth , Wing Eng , Andrew H. Heffernan
IPC分类号: G06F15/173 , H04L12/751 , H04L29/06 , H04L12/701 , H04L12/24
CPC分类号: H04L45/02 , H04J14/0227 , H04J14/0241 , H04L12/2856 , H04L12/2874 , H04L29/06 , H04L41/0213 , H04L41/0813 , H04L41/0893 , H04L45/00 , H04L45/44 , H04L45/586 , H04L63/0272 , H04L67/34
摘要: Techniques are described for implementing one or more logical routers within a single physical routing device. These logical routers, as referred to herein, are logically isolated in the sense that they achieve operational and organizational isolation within the routing device without requiring the use of additional or redundant hardware, e.g., additional hardware-based routing controllers. The routing device may, for example, include a computing platform, and a plurality of software process executing within the computing platform, wherein the software processes operate as logical routers. The routing device may include a forwarding component shared by the logical routers to forward network packets received from a network in accordance with the forwarding tables.
摘要翻译: 描述了用于在单个物理路由设备内实现一个或多个逻辑路由器的技术。 这些逻辑路由器在逻辑上是隔离的,因为它们实现路由设备内的操作和组织隔离,而不需要使用额外的或冗余的硬件,例如附加的基于硬件的路由控制器。 路由设备可以例如包括计算平台和在计算平台内执行的多个软件进程,其中软件进程作为逻辑路由器操作。 路由设备可以包括由逻辑路由器共享的转发组件,以转发根据转发表从网络接收的网络分组。
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公开(公告)号:US20100142370A1
公开(公告)日:2010-06-10
申请号:US12705713
申请日:2010-02-15
申请人: Ping PAN , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
发明人: Ping PAN , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
IPC分类号: G06F11/00
CPC分类号: H04L43/0811 , H04L41/0668
摘要: A connection between network nodes in a communication network is backed up. A failover label-switched path (LSP) is created starting at a first network node of a connection and ending 5 at the second node of the connection, while bypassing the protected connection. In the event of connection failure, data is transmitted through the failover LSP. A network operator can selectively protect different types of data by using filters that bind one or more types of traffic received over one or more interfaces to different failover LSPs.
摘要翻译: 备份通信网络中的网络节点之间的连接。 从连接的第一个网络节点开始创建故障切换标签交换路径(LSP),并在连接的第二个节点处结束5,同时绕过受保护的连接。 在连接失败的情况下,通过故障转移LSP传输数据。 网络运营商可以通过使用将一个或多个接口上接收到的一种或多种类型的业务绑定到不同的故障切换LSP的过滤器来选择性地保护不同类型的数据。
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公开(公告)号:US08619550B2
公开(公告)日:2013-12-31
申请号:US13250731
申请日:2011-09-30
申请人: Ping Pan , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
发明人: Ping Pan , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
IPC分类号: G01R31/08
CPC分类号: H04L43/0811 , H04L41/0668
摘要: A connection between network nodes in a communication network is backed up. A failover switched path such as a label-switched path (LSP) is created starting at a first network node of a connection and ending at the second node of the connection, while bypassing the protected connection. In the event of connection failure, data is transmitted through the failover switched path (e.g., LSP). A network operator can selectively protect different types of data by using filters that bind one or more types of traffic received over one or more interfaces to different failover switched paths (LSPs).
摘要翻译: 备份通信网络中的网络节点之间的连接。 创建从连接的第一个网络节点开始并在连接的第二个节点结束的故障转移交换路径(如标签交换路径(LSP)),同时绕过受保护的连接。 在连接失败的情况下,通过故障转移交换路径(例如,LSP)传输数据。 网络运营商可以通过使用将通过一个或多个接口接收的一种或多种类型的业务绑定到不同的故障转移交换路径(LSP)的过滤器来选择性地保护不同类型的数据。
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公开(公告)号:US08055791B2
公开(公告)日:2011-11-08
申请号:US12705713
申请日:2010-02-15
申请人: Ping Pan , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
发明人: Ping Pan , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
IPC分类号: G06F13/00
CPC分类号: H04L43/0811 , H04L41/0668
摘要: A connection between network nodes in a communication network is backed up. A failover label-switched path (LSP) is created starting at a first network node of a connection and ending 5 at the second node of the connection, while bypassing the protected connection. In the event of connection failure, data is transmitted through the failover LSP. A network operator can selectively protect different types of data by using filters that bind one or more types of traffic received over one or more interfaces to different failover LSPs.
摘要翻译: 备份通信网络中的网络节点之间的连接。 从连接的第一个网络节点开始创建故障切换标签交换路径(LSP),并在连接的第二个节点处结束5,同时绕过受保护的连接。 在连接失败的情况下,通过故障转移LSP传输数据。 网络运营商可以通过使用将通过一个或多个接口接收的一种或多种类型的业务绑定到不同的故障切换LSP的过滤器来选择性地保护不同类型的数据。
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公开(公告)号:US20120020205A1
公开(公告)日:2012-01-26
申请号:US13250731
申请日:2011-09-30
申请人: Ping PAN , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
发明人: Ping PAN , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
IPC分类号: H04L12/26
CPC分类号: H04L43/0811 , H04L41/0668
摘要: A connection between network nodes in a communication network is backed up. A failover switched path such as a label-switched path (LSP) is created starting at a first network node of a connection and ending at the second node of the connection, while bypassing the protected connection. In the event of connection failure, data is transmitted through the failover switched path (e.g., LSP). A network operator can selectively protect different types of data by using filters that bind one or more types of traffic received over one or more interfaces to different failover switched paths (LSPs).
摘要翻译: 备份通信网络中的网络节点之间的连接。 创建从连接的第一个网络节点开始并在连接的第二个节点结束的故障转移交换路径(如标签交换路径(LSP)),同时绕过受保护的连接。 在连接失败的情况下,通过故障转移交换路径(例如,LSP)传输数据。 网络运营商可以通过使用将通过一个或多个接口接收的一种或多种类型的业务绑定到不同的故障转移交换路径(LSP)的过滤器来选择性地保护不同类型的数据。
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公开(公告)号:US07680952B1
公开(公告)日:2010-03-16
申请号:US10869501
申请日:2004-06-16
申请人: Ping Pan , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
发明人: Ping Pan , Der-Hwa Gan , Keith E. Holleman , Manoj Leelanivas , Nischal Sheth , Arun Vaidyanathan
IPC分类号: G06F13/00
CPC分类号: H04L43/0811 , H04L41/0668
摘要: A connection between network nodes in a communication network is backed up. A failover label-switched path (LSP) is created starting at a first network node of a connection and ending at the second node of the connection, while bypassing the protected connection. In the event of connection failure, data is transmitted through the failover LSP. A network operator can selectively protect different types of data by using filters that bind one or more types of traffic received over one or more interfaces to different failover LSPs.
摘要翻译: 备份通信网络中的网络节点之间的连接。 从连接的第一个网络节点开始创建故障转移标签交换路径(LSP),并在连接的第二个节点处结束,同时绕过受保护的连接。 在连接失败的情况下,通过故障转移LSP传输数据。 网络运营商可以通过使用将通过一个或多个接口接收的一种或多种类型的业务绑定到不同的故障切换LSP的过滤器来选择性地保护不同类型的数据。
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公开(公告)号:US20100284407A1
公开(公告)日:2010-11-11
申请号:US12842210
申请日:2010-07-23
申请人: Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
发明人: Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
IPC分类号: H04L12/56
CPC分类号: H04L45/742 , H04L45/04 , H04L45/54
摘要: A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The router receives a pointer to a second forwarding table in accordance with the closest match determined in the first forwarding table and determines, among entries in the second forwarding table, a closest match for the received destination address information.
摘要翻译: 路由器接收分组的目的地地址信息,并且在第一转发表中的条目中确定所接收的目的地地址信息的最接近的匹配。 路由器根据在第一转发表中确定的最接近的匹配接收指向第二转发表的指针,并在第二转发表中的条目中确定接收到的目的地地址信息的最接近的匹配。
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公开(公告)号:US07787466B1
公开(公告)日:2010-08-31
申请号:US11460195
申请日:2006-07-26
申请人: Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
发明人: Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
IPC分类号: H04L12/56
CPC分类号: H04L45/742 , H04L45/04 , H04L45/54
摘要: A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The router receives a pointer to a second forwarding table in accordance with the closest match determined in the first forwarding table and determines, among entries in the second forwarding table, a closest match for the received destination address information.
摘要翻译: 路由器接收分组的目的地地址信息,并且在第一转发表中的条目中确定所接收的目的地地址信息的最接近的匹配。 路由器根据在第一转发表中确定的最接近的匹配接收指向第二转发表的指针,并在第二转发表中的条目中确定接收到的目的地地址信息的最接近的匹配。
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公开(公告)号:US07106740B1
公开(公告)日:2006-09-12
申请号:US10063216
申请日:2002-03-29
申请人: Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
发明人: Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
IPC分类号: H04L12/56
CPC分类号: H04L45/742 , H04L45/04 , H04L45/54
摘要: A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The router receives a pointer to a second forwarding table in accordance with the closest match determined in the first forwarding table and determines, among entries in the second forwarding table, a closest match for the received destination address information.
摘要翻译: 路由器接收分组的目的地地址信息,并且在第一转发表中的条目中确定所接收的目的地地址信息的最接近的匹配。 路由器根据在第一转发表中确定的最接近的匹配接收指向第二转发表的指针,并在第二转发表中的条目中确定接收到的目的地地址信息的最接近的匹配。
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公开(公告)号:US08085690B1
公开(公告)日:2011-12-27
申请号:US12341628
申请日:2008-12-22
申请人: Manoj Leelanivas , Yakov Rekhter
发明人: Manoj Leelanivas , Yakov Rekhter
IPC分类号: H04L12/28
CPC分类号: H04L12/4675 , H04L45/00 , H04L45/04 , H04L45/50
摘要: A routing device may be connected to multiple spoke site networks, and may receive local routes from these spoke site networks. The routing device may include routing information and forwarding information. The routing device may update the routing information to include the local routes, and selectively generate the forwarding information to exclude the local routes. The routing device may associate labels with the local routes and advertise the labels and local routes to other routing devices. The labels may be associated with interfaces of the routing device or access links that connect the routing device to a spoke site network, and the associations of labels with interfaces or access links may be stored in the forwarding information. The routing device may forward received packets that include the labels according to the labels, and may forward other received packets according to the routes within the forwarding information.
摘要翻译: 路由设备可以连接到多个分支站点网络,并且可以从这些分支站点网络接收本地路由。 路由设备可以包括路由信息和转发信息。 路由设备可以更新路由信息以包括本地路由,并且选择性地生成转发信息以排除本地路由。 路由设备可以将标签与本地路由相关联,并将标签和本地路由通告给其他路由设备。 标签可以与将路由设备连接到分支站点网络的路由设备或接入链路的接口相关联,并且标签与接口或接入链路的关联可以存储在转发信息中。 路由设备可以根据标签转发包含标签的接收报文,并根据转发信息内的路由转发其他收到的报文。
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