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1. 发明授权

US09253274B2 Service insertion architecture 有权
标题翻译：服务插入架构
公开(公告)号：US09253274B2
公开(公告)日：2016-02-02
申请号：US11655363
申请日：2007-01-19
申请人： Paul Quinn , Kenneth Durazzo , Andrew G. Harvey , Satish Gannu , Dean Cheng , Frederick Baker , Richard M. Pruss , Barry R. Greene , Saravanakumar Rajendran , Robert Gleichauf
发明人： Paul Quinn , Kenneth Durazzo , Andrew G. Harvey , Satish Gannu , Dean Cheng , Frederick Baker , Richard M. Pruss , Barry R. Greene , Saravanakumar Rajendran , Robert Gleichauf
IPC分类号： G06F15/173 , H04L29/08 , G06F9/50
CPC分类号： H04L67/2814 , G06F9/5055 , H04L67/2838 , H04L67/327
摘要： In one embodiment, an apparatus can include a service broker configured to: (i) register a service classifier, and to provide context information to the service classifier; and (ii) register a plurality of service nodes. The service broker can also receive capability and service requests from the service classifier. Further, the context information can include a service header, a reachability indication, and an encapsulation, where the service header and the encapsulation may be attached or related to a packet in the service classifier. In addition, the service classifier can use this information to redirect the packet to a first service node.
摘要翻译：在一个实施例中，设备可以包括被配置为：（i）注册服务分类器并且向服务分类器提供上下文信息的服务代理; 和（ii）注册多个服务节点。服务代理还可以从服务分类器接收能力和服务请求。此外，上下文信息可以包括服务报头，可达性指示和封装，其中服务报头和封装可以附加或与服务分类器中的分组相关。此外，服务分类器可以使用该信息将分组重定向到第一服务节点。

2. 发明申请

US20080177896A1 Service insertion architecture 有权
标题翻译：服务插入架构
公开(公告)号：US20080177896A1
公开(公告)日：2008-07-24
申请号：US11655363
申请日：2007-01-19
申请人： Paul Quinn , Kenneth Durazzo , Andrew G. Harvey , Satish Gannu , Dean Cheng , Frederick Baker , Richard M. Pruss , Barry R. Greene , Saravanakumar Rajendran , Robert Gleichauf
发明人： Paul Quinn , Kenneth Durazzo , Andrew G. Harvey , Satish Gannu , Dean Cheng , Frederick Baker , Richard M. Pruss , Barry R. Greene , Saravanakumar Rajendran , Robert Gleichauf
IPC分类号： G06F15/173
CPC分类号： H04L67/2814 , G06F9/5055 , H04L67/2838 , H04L67/327
摘要： In one embodiment, an apparatus can include a service broker configured to: (i) register a service classifier, and to provide context information to the service classifier; and (ii) register a plurality of service nodes. The service broker can also receive capability and service requests from the service classifier. Further, the context information can include a service header, a reachability indication, and an encapsulation, where the service header and the encapsulation may be attached or related to a packet in the service classifier. In addition, the service classifier can use this information to redirect the packet to a first service node.
摘要翻译：在一个实施例中，设备可以包括被配置为：（i）注册服务分类器并且向服务分类器提供上下文信息的服务代理; 和（ii）注册多个服务节点。服务代理还可以从服务分类器接收能力和服务请求。此外，上下文信息可以包括服务报头，可达性指示和封装，其中服务报头和封装可以附加或与服务分类器中的分组相关。此外，服务分类器可以使用该信息将分组重定向到第一服务节点。

3. 发明授权

US06735198B1 Method and apparatus for updating and synchronizing forwarding tables in a distributed network switch 有权
标题翻译：用于在分布式网络交换机中更新和同步转发表的方法和装置
公开(公告)号：US06735198B1
公开(公告)日：2004-05-11
申请号：US09469062
申请日：1999-12-21
申请人： Thomas J. Edsall , Herman Levenson , Claudette Lucille Surma , Ajit Sanzgiri , Saravanakumar Rajendran , Rong-Lung Lue , Tuan Thanh Nguyen
发明人： Thomas J. Edsall , Herman Levenson , Claudette Lucille Surma , Ajit Sanzgiri , Saravanakumar Rajendran , Rong-Lung Lue , Tuan Thanh Nguyen
IPC分类号： H04L1228
CPC分类号： H04L45/54 , H04L49/3009 , H04L49/354 , H04L49/602
摘要： A mechanism and technique updates and synchronizes forwarding tables contained on line cards that are interconnected by a switch fabric of a distributed network switch. The network switch is preferably a L3 or L4 switch comprising a plurality of forwarding engines distributed among the line cards. Each forwarding engine has an associated forwarding table, which preferably includes a L2 portion and L3/L4 portions. The L2 portion of the table is used to execute forwarding decision operations for frames forwarded among ports of the line cards, whereas the L3/L4 portions of the table are used to execute shortcut and forwarding operations for frames routed among the ports. The mechanism comprises a media access control (MAC) notification (MN) frame for updating and synchronizing the location of a destination port stored in the L2 portions of the forwarding tables.
摘要翻译：机制和技术更新并同步包含在由分布式网络交换机的交换结构互连的线路卡上的转发表。网络交换机优选地是包括分配在线路卡之间的多个转发引擎的L3或L4交换机。每个转发引擎具有相关联的转发表，其优选地包括L2部分和L3 / L4部分。表的L2部分用于对线路卡端口之间转发的帧执行转发决策操作，而表的L3 / L4部分用于对端口之间路由的帧执行快捷和转发操作。该机制包括用于更新和同步存储在转发表的L2部分中的目的地端口的位置的媒体访问控制（MAC）通知（MN）帧。

4. 发明授权

US08953629B2 Blade router with NAT support 有权
标题翻译：具有NAT支持的刀片路由器
公开(公告)号：US08953629B2
公开(公告)日：2015-02-10
申请号：US12037669
申请日：2008-02-26
申请人： Dileep Kumar Devireddy , Michael Smith , Saravanakumar Rajendran , Pradeep K. Kathail , Chandrashekhar Appanna , Jeffrey Ym Wang
发明人： Dileep Kumar Devireddy , Michael Smith , Saravanakumar Rajendran , Pradeep K. Kathail , Chandrashekhar Appanna , Jeffrey Ym Wang
IPC分类号： H04L12/56 , H04L29/12 , G06F13/38
CPC分类号： G06F13/387 , H04L61/2514 , H04L61/6077
摘要： A blade router for increased interface scalability is provided. The blade router may address interface scalability by having each of the linecards manage its interfaces locally and may use the concept of virtual and local interfaces for intelligent forwarding. The blade router may appear as a single router from the customer perspective during configuration. For some embodiments, two virtual interfaces may be used, one for regular interface traffic and another for Network Address Translation (NAT)-enabled interface traffic.
摘要翻译：提供了一种用于增加接口可扩展性的刀片路由器。刀片路由器可以通过使每个线路卡在本地管理其接口来解决接口可扩展性，并且可以使用虚拟和本地接口的概念进行智能转发。在配置期间，刀片路由器可能会从客户的角度出现为单个路由器。对于一些实施例，可以使用两个虚拟接口，一个用于常规接口业务，另一个用于启用网络地址转换（NAT）的接口业务。

5. 发明申请

US20130315252A1 IMPLEMENTING PVLANs IN A LARGE-SCALE DISTRIBUTED VIRTUAL SWITCH 有权
标题翻译：在大规模分布式虚拟交换机中实现PVLAN
公开(公告)号：US20130315252A1
公开(公告)日：2013-11-28
申请号：US13477605
申请日：2012-05-22
申请人： Vishnu Emmadi , Munish Mehta , Saravanakumar Rajendran , Prashant Gandhi
发明人： Vishnu Emmadi , Munish Mehta , Saravanakumar Rajendran , Prashant Gandhi
IPC分类号： H04L12/56
CPC分类号： H04L12/6418 , H04L12/4641 , H04L63/0227 , H04L63/0272 , H04L63/107 , H04W4/023 , H04W12/08
摘要： In one embodiment, a list of source identifiers is maintained at a virtual switch. These source identifiers are allowed to send packets through the virtual switch to ports in a private virtual local area network (PVLAN). When a packet is received at the virtual switch from a particular source destined for a particular port in the PVLAN, the virtual switch determines whether a particular identifier associated with the particular source matches one of the source identifiers in the list. If that particular source identifier is not on the list, the packet is prevented from being forwarded to the particular port in the PVLAN.
摘要翻译：在一个实施例中，在虚拟交换机上维护源标识符的列表。允许这些源标识符通过虚拟交换机发送到私有虚拟局域网（PVLAN）中的端口。当虚拟交换机从虚拟交换机接收目的地为PVLAN中的特定端口的分组时，虚拟交换机确定与特定源相关联的特定标识符是否与列表中的一个源标识符匹配。如果该特定源标识符不在列表中，则阻止该数据包转发到PVLAN中的特定端口。

6. 发明申请

US20110208867A1 Performing Message Payload Processing Functions In A Network Element On Behalf Of An Application 有权
标题翻译：在应用程序的网络元素中执行消息有效负载处理功能
公开(公告)号：US20110208867A1
公开(公告)日：2011-08-25
申请号：US13100144
申请日：2011-05-03
申请人： Tefcros Anthias , Sandeep Kumar , Ricky Ho , Saravanakumar Rajendran
发明人： Tefcros Anthias , Sandeep Kumar , Ricky Ho , Saravanakumar Rajendran
IPC分类号： G06F15/16
CPC分类号： H04L51/00 , G06F9/546 , H04L69/08
摘要： A method is disclosed for performing message payload processing functions in a network element on behalf of an application. According to one aspect, a network element intercepts data packets comprising network layer or transport layer headers having an address of a destination which destination differs from the network element. The network element determines whether information contained in layer 2-4 headers of the data packet satisfies specified criteria. If the information satisfies the specified criteria, the network element directs the data packets to a blade of the network element that performs processing based on an application layer message at least partially contained in the data packets. If the information does not satisfy the specified criteria, the network element forwards the data packets towards the destination without sending them to the blade.
摘要翻译：公开了一种代表应用程序在网络元件中执行消息有效载荷处理功能的方法。根据一个方面，网络元件拦截包括网络层或传输层报头的数据分组，其具有目的地与网络元素不同的目的地地址。网元确定包含在数据包的第2-4层头中的信息是否满足指定的标准。如果信息满足指定的标准，则网络元件将数据分组引导到基于至少部分地包含在数据分组中的应用层消息执行处理的网元的叶片。如果信息不符合规定的标准，则网络单元将数据包转发到目的地，而不将其发送到刀片。

7. 发明申请

US20090213869A1 BLADE SWITCH 有权
标题翻译：刀片开关
公开(公告)号：US20090213869A1
公开(公告)日：2009-08-27
申请号：US12037525
申请日：2008-02-26
申请人： Saravanakumar Rajendran , Michael Smith , Dileep Kumar Devireddy , Pradeep K. Kathail , Chandrashekhar Appanna , Jeffrey Ym Wang , Prashant P. Gandhi
发明人： Saravanakumar Rajendran , Michael Smith , Dileep Kumar Devireddy , Pradeep K. Kathail , Chandrashekhar Appanna , Jeffrey Ym Wang , Prashant P. Gandhi
IPC分类号： H04L12/56
CPC分类号： H04L45/60 , H04L45/00 , H04L45/583 , H04L47/24 , H04L49/40 , H04L49/45 , H04L49/602 , H04L49/70
摘要： A blade switch for increased interface scalability is provided. The blade switch may address interface scalability by having each of the switch linecards manage its interfaces locally and may use the concept of virtual and local interfaces for intelligent forwarding. The blade switch may appear as a single network switch having a single bridge ID from the network perspective during operation and from the customer perspective during configuration.
摘要翻译：提供了一种用于增加接口可扩展性的刀片式交换机。刀片交换机可以通过使每个交换机线路卡在本地管理其接口来解决接口可扩展性，并且可以使用虚拟和本地接口的概念进行智能转发。在操作期间，刀片交换机可以从网络的角度出发，具有单个桥接ID，并且在配置期间从客户的角度出发。

8. 发明授权

US09331872B2 Implementing PVLANs in a large-scale distributed virtual switch 有权
标题翻译：在大规模分布式虚拟交换机中实现PVLAN
公开(公告)号：US09331872B2
公开(公告)日：2016-05-03
申请号：US13477605
申请日：2012-05-22
申请人： Vishnu Emmadi , Munish Mehta , Saravanakumar Rajendran , Prashant Gandhi
发明人： Vishnu Emmadi , Munish Mehta , Saravanakumar Rajendran , Prashant Gandhi
IPC分类号： H04L12/64 , H04L12/46 , H04L29/06 , H04W4/02 , H04W12/08
CPC分类号： H04L12/6418 , H04L12/4641 , H04L63/0227 , H04L63/0272 , H04L63/107 , H04W4/023 , H04W12/08
摘要： In one embodiment, a list of source identifiers is maintained at a virtual switch. These source identifiers are allowed to send packets through the virtual switch to ports in a private virtual local area network (PVLAN). When a packet is received at the virtual switch from a particular source destined for a particular port in the PVLAN, the virtual switch determines whether a particular identifier associated with the particular source matches one of the source identifiers in the list. If that particular source identifier is not on the list, the packet is prevented from being forwarded to the particular port in the PVLAN.
摘要翻译：在一个实施例中，在虚拟交换机上维护源标识符的列表。允许这些源标识符通过虚拟交换机发送到私有虚拟局域网（PVLAN）中的端口。当虚拟交换机从虚拟交换机接收目的地为PVLAN中的特定端口的分组时，虚拟交换机确定与特定源相关联的特定标识符是否与列表中的一个源标识符匹配。如果该特定源标识符不在列表中，则阻止该数据包转发到PVLAN中的特定端口。

9. 发明授权

US08625592B2 Blade switch with scalable interfaces 有权
标题翻译：刀片交换机具有可扩展接口
公开(公告)号：US08625592B2
公开(公告)日：2014-01-07
申请号：US12037525
申请日：2008-02-26
申请人： Saravanakumar Rajendran , Michael Smith , Dileep Kumar Devireddy , Pradeep K. Kathail , Chandrashekhar Appanna , Jeffrey Ym Wang , Prashant P. Gandhi
发明人： Saravanakumar Rajendran , Michael Smith , Dileep Kumar Devireddy , Pradeep K. Kathail , Chandrashekhar Appanna , Jeffrey Ym Wang , Prashant P. Gandhi
IPC分类号： H04L12/54
CPC分类号： H04L45/60 , H04L45/00 , H04L45/583 , H04L47/24 , H04L49/40 , H04L49/45 , H04L49/602 , H04L49/70
摘要： A blade switch for increased interface scalability is provided. The blade switch may address interface scalability by having each of the switch linecards manage its interfaces locally and may use the concept of virtual and local interfaces for intelligent forwarding. The blade switch may appear as a single network switch having a single bridge ID from the network perspective during operation and from the customer perspective during configuration.
摘要翻译：提供了一种用于增加接口可扩展性的刀片式交换机。刀片交换机可以通过使每个交换机线路卡在本地管理其接口来解决接口可扩展性，并且可以使用虚拟和本地接口的概念进行智能转发。在操作期间，刀片交换机可以从网络的角度出发，具有单个桥接ID，并且在配置期间从客户的角度出发。

10. 发明授权

US08312148B2 Performing message payload processing functions in a network element on behalf of an application 有权
标题翻译：代表应用程序在网络元素中执行消息有效负载处理功能
公开(公告)号：US08312148B2
公开(公告)日：2012-11-13
申请号：US13100144
申请日：2011-05-03
申请人： Tefcros Anthias , Sandeep Kumar , Ricky Ho , Saravanakumar Rajendran
发明人： Tefcros Anthias , Sandeep Kumar , Ricky Ho , Saravanakumar Rajendran
IPC分类号： G06F15/16
CPC分类号： H04L51/00 , G06F9/546 , H04L69/08
摘要： A method is disclosed for performing message payload processing functions in a network element on behalf of an application. According to one aspect, a network element intercepts data packets comprising network layer or transport layer headers having an address of a destination which destination differs from the network element. The network element determines whether information contained in layer 2-4 headers of the data packet satisfies specified criteria. If the information satisfies the specified criteria, the network element directs the data packets to a blade of the network element that performs processing based on an application layer message at least partially contained in the data packets. If the information does not satisfy the specified criteria, the network element forwards the data packets towards the destination without sending them to the blade.
摘要翻译：公开了一种代表应用程序在网络元件中执行消息有效载荷处理功能的方法。根据一个方面，网络元件拦截包括网络层或传输层报头的数据分组，其具有目的地与网络元素不同的目的地地址。网元确定包含在数据包的第2-4层头中的信息是否满足指定的标准。如果信息满足指定的标准，则网络元件将数据分组引导到基于至少部分地包含在数据分组中的应用层消息执行处理的网元的叶片。如果信息不符合规定的标准，则网络单元将数据包转发到目的地，而不将其发送到刀片。

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