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1. 发明授权

US08392565B2 Network memory pools for packet destinations and virtual machines 有权
标题翻译：分组目的地和虚拟机的网络内存池
公开(公告)号：US08392565B2
公开(公告)日：2013-03-05
申请号：US11490486
申请日：2006-07-20
申请人： Sunay Tripathi , Erik Nordmark , Nicolas G. Droux
发明人： Sunay Tripathi , Erik Nordmark , Nicolas G. Droux
IPC分类号： G06F15/173
CPC分类号： G06F13/387 , G06F12/1081 , H04L47/2441 , H04L49/90 , H04L49/901 , H04L49/9078
摘要： A method for processing a packet that includes receiving a packet for a target, classifying the packet, and sending the packet to a receive ring based on the classification. The method also includes obtaining an identifier (ID) associated with the target based on the classification, and sending a request for virtual memory that includes the ID. Furthermore, the method includes determining, using the ID, whether the target has exceeded a virtual memory allocation associated with the target. In addition, the method includes allocating the virtual memory, storing the packet in the virtual memory, and updating the virtual memory allocation associated with the target to reflect the allocation of the virtual memory, all if the target does not exceed the virtual memory allocation. The method further includes waiting until the target is not exceeding the virtual memory allocation if the target exceeds the virtual memory allocation.
摘要翻译：一种用于处理分组的方法，包括接收目标分组，分类分组，以及基于分类将分组发送到接收环。该方法还包括基于分类获得与目标相关联的标识符（ID），以及发送对包括该ID的虚拟存储器的请求。此外，该方法包括使用该ID确定目标是否已经超过与目标相关联的虚拟内存分配。此外，该方法包括分配虚拟存储器，将数据包存储在虚拟存储器中，以及更新与目标相关联的虚拟存储器分配以反映虚拟存储器的分配，如果目标不超过虚拟存储器分配则全部。该方法还包括如果目标超过虚拟内存分配，则等待直到目标不超过虚拟内存分配。

2. 发明授权

US07633864B2 Method and system for creating a demilitarized zone using network stack instances 有权
标题翻译：使用网络堆栈实例创建非军事化区域的方法和系统
公开(公告)号：US07633864B2
公开(公告)日：2009-12-15
申请号：US11642427
申请日：2006-12-20
申请人： Darrin P. Johnson , Darren J. Reed , Erik Nordmark
发明人： Darrin P. Johnson , Darren J. Reed , Erik Nordmark
IPC分类号： H04L12/26 , H04L12/28 , H04L12/56 , H04J3/16 , G06F15/16 , G06F15/173
CPC分类号： H04L45/00 , H04L63/0209 , H04L63/0236 , H04L63/0272
摘要： A method for routing a packet. The method includes receiving the packet from a first network into a network interface card (NIC), where the NIC is operatively connected to a host and the host includes a first virtual network stack and a second virtual network stack. The method further includes sending the packet to a first virtual network stack, where the first virtual network stack includes a first filter, a first network layer, and a first transport layer. In addition, the first filter, the first network layer, and the first transport layer are isolated from the second virtual network stack. If the packet is permitted through the first filter in the first virtual network stack, then the packet is sent to a first virtual NIC.
摘要翻译：一种用于路由数据包的方法。该方法包括从第一网络接收分组到网络接口卡（NIC），其中NIC可操作地连接到主机，并且主机包括第一虚拟网络堆栈和第二虚拟网络堆栈。该方法还包括将分组发送到第一虚拟网络栈，其中第一虚拟网络栈包括第一过滤器，第一网络层和第一传输层。此外，第一过滤器，第一网络层和第一传输层与第二虚拟网络堆栈隔离。如果通过第一虚拟网络堆栈中的第一过滤器允许数据包，则将数据包发送到第一虚拟NIC。

3. 发明申请

US20080123536A1 Virtual network testing and deployment using network stack instances and containers 有权
标题翻译：使用网络堆栈实例和容器进行虚拟网络测试和部署
公开(公告)号：US20080123536A1
公开(公告)日：2008-05-29
申请号：US11605114
申请日：2006-11-28
申请人： Darrin P. Johnson , Erik Nordmark , Kais Belgaied
发明人： Darrin P. Johnson , Erik Nordmark , Kais Belgaied
IPC分类号： H04J3/14
CPC分类号： H04L41/145 , H04L41/12
摘要： A method for testing a network topology. The method includes obtaining the network topology, where the network topology includes a number of nodes connected by at least one link. The method further includes instantiating a number of containers corresponding to the nodes, instantiating a number of virtual network stacks, and instantiating at least one virtual switch corresponding to the at least one link. The containers are subsequently connected to the virtual network stacks using the at least one virtual switch. At least one of the virtual network stacks is then configured to send and receive packets. Finally, the network topology is tested by sending a packet through at least one of the plurality of virtual network stacks and the at least one virtual switch, wherein a result of the testing is used to validate the network topology.
摘要翻译：一种测试网络拓扑的方法。该方法包括获得网络拓扑，其中网络拓扑包括通过至少一个链路连接的多个节点。该方法还包括实例化与节点对应的多个容器，实例化多个虚拟网络堆栈，以及实例化至少一个对应于该至少一个链路的虚拟交换机。随后使用至少一个虚拟交换机将容器连接到虚拟网络堆栈。然后，将至少一个虚拟网络堆栈配置为发送和接收数据包。最后，通过通过多个虚拟网络栈和至少一个虚拟交换机中的至少一个发送分组来测试网络拓扑，其中测试的结果用于验证网络拓扑。

4. 发明申请

US20080043756A1 Method and system for network configuration for virtual machines 有权
标题翻译：虚拟机网络配置方法和系统
公开(公告)号：US20080043756A1
公开(公告)日：2008-02-21
申请号：US11489923
申请日：2006-07-20
申请人： Nicolas G. Droux , Kais Belgaied , Erik Nordmark , Sunay Tripathi
发明人： Nicolas G. Droux , Kais Belgaied , Erik Nordmark , Sunay Tripathi
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L12/66
摘要： A method for changing network configuration parameters that includes generating a request to change a network configuration parameter, where the request is generated by a virtual machine, sending the request to a virtual network interface card (VNIC) associated with the virtual machine, sending the request to a VNIC configuration database associated with the VNIC, determining whether the virtual machine is allowed to change the network configuration parameter, if the virtual machine is allowed to change the network configuration parameter, updating the VNIC configuration database and VNIC to reflect the change in the network configuration parameter, and notifying the virtual machine that the change in network configuration parameter is allowed, and if the virtual machine is not allowed to change the network configuration parameter, dropping the request.
摘要翻译：一种用于改变网络配置参数的方法，所述方法包括生成改变网络配置参数的请求，所述请求由所述虚拟机产生，所述请求发送到与所述虚拟机相关联的虚拟网络接口卡（VNIC），发送所述请求到与VNIC相关联的VNIC配置数据库，确定虚拟机是否被允许改变网络配置参数，如果虚拟机被允许改变网络配置参数，更新VNIC配置数据库和VNIC以反映该变更网络配置参数，并通知虚拟机允许网络配置参数的更改，如果虚拟机不允许更改网络配置参数，则丢弃请求。

5. 发明申请

US20080005441A1 Bridging network components 有权
标题翻译：桥接网络组件
公开(公告)号：US20080005441A1
公开(公告)日：2008-01-03
申请号：US11479948
申请日：2006-06-30
申请人： Nicolas G. Droux , Sunay Tripathi , Kais Belgaied , Erik Nordmark
发明人： Nicolas G. Droux , Sunay Tripathi , Kais Belgaied , Erik Nordmark
IPC分类号： G06F13/36
CPC分类号： H04L49/10 , H04L49/25 , H04L49/30 , H04L49/70
摘要： A system includes a first and a second network component, and a bridge. The bridge, which resides a Media Access Control (MAC) layer of a host, includes a bridge component, a first virtual network interface card (VNIC) and a second VNIC, wherein the first VNIC is associated with the first network component and the second VNIC is associated with the second network component. Further, the bridge component is configured to send packets received from the first network component to the second network component and to send packets received from the second network component to the first network component.
摘要翻译：系统包括第一和第二网络组件和桥。驻留主机的媒体访问控制（MAC）层的桥包括桥组件，第一虚拟网络接口卡（VNIC）和第二VNIC，其中第一VNIC与第一网络组件相关联，第二VNIC与第二网络组件相关联 VNIC与第二个网络组件相关联。此外，桥组件被配置为将从第一网络组件接收的分组发送到第二网络组件，并将从第二网络组件接收的分组发送到第一网络组件。

6. 发明申请

US20080002663A1 Virtual network interface card loopback fastpath 有权
标题翻译：虚拟网络接口卡环回快速路径
公开(公告)号：US20080002663A1
公开(公告)日：2008-01-03
申请号：US11479946
申请日：2006-06-30
申请人： Sunay Tripathi , Erik Nordmark , Nicolas G. Droux
发明人： Sunay Tripathi , Erik Nordmark , Nicolas G. Droux
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L45/586
摘要： A method for routing packets includes receiving an outbound packet issued by a first virtual machine, wherein the first virtual machine is located on a host, determining a packet destination associated with the outbound packet, querying a routing table for a routing entry corresponding to the packet destination, wherein the routing table comprises a first routing entry referencing an external host and a second routing entry referencing a second virtual machine, wherein the second virtual machine is located on the host, if the routing entry corresponding to the packet destination is the first routing entry, passing the packet to the external host, and if the routing entry corresponding to the packet destination is the second routing entry, passing the packet to the second virtual machine.
摘要翻译：路由分组的方法包括接收由第一虚拟机发出的出站分组，其中所述第一虚拟机位于主机上，确定与所述出站分组相关联的分组目的地，向所述路由表查询与所述分组对应的路由表项目的地，其中所述路由表包括引用外部主机的第一路由条目和引用第二虚拟机的第二路由条目，其中所述第二虚拟机位于所述主机上，如果对应于所述分组目的地的路由条目是所述第一路由将分组传递到外部主机，如果与分组目的地相对应的路由条目是第二路由条目，则将分组传递到第二虚拟机。

7. 发明申请

US20130294221A1 Optimization for Trill LAN Hellos 有权
标题翻译： Trill LAN Hellos的优化
公开(公告)号：US20130294221A1
公开(公告)日：2013-11-07
申请号：US13465218
申请日：2012-05-07
申请人： Ramkumar Parameswaran , Varun Shah , Erik Nordmark , Ayan Banerjee
发明人： Ramkumar Parameswaran , Varun Shah , Erik Nordmark , Ayan Banerjee
IPC分类号： H04L12/56 , G06F11/00
CPC分类号： H04L45/02 , H04L12/4641 , H04L12/4675 , H04L45/026 , H04L45/66
摘要： Systems and methods may be provided embodying an optimized Trill LAN network hello mode. The optimized hello mode may allow the number of LAN hellos exchanged to be reduced significantly in a steady state mode of operation. No modifications to the current Trill specification are needed and in a converged state (when designated RBridge election and appointed forwarder appointments are complete), only 1 hello PDU per RBridge is originated in every hello interval.
摘要翻译：可以提供系统和方法，体现优化的Trill LAN网络问候模式。优化的hello模式可以允许在稳定状态操作模式下交换的LAN hello的数量显着减少。不需要修改当前的Trill规范，并且在融合状态（当指定RBridge选举和指定的转发器约会完成时），每个Hello报文间隔只会发送一个每个RBridge的1个hello PDU。

8. 发明授权

US08254383B2 Method and system for routing using multi-stage route entry lookup 有权
标题翻译：使用多级路由条目查找路由的方法和系统
公开(公告)号：US08254383B2
公开(公告)日：2012-08-28
申请号：US12242373
申请日：2008-09-30
申请人： Erik Nordmark
发明人： Erik Nordmark
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/00 , H04L45/54
摘要： The invention relates to a method for routing packets. The method includes receiving a first packet to route, obtaining a first route entry using a first IP address associated with the first packet, where the first route entry includes a first prefix, a first route nexthop generation (RNG) and a first route nexthop pointer (RNP) to a second route entry. The method further includes comparing a route generation (RG) for the second route entry with the first RNG where the RG for the second route entry and the first RNG are equal, obtaining a first neighbor cache entry (NCE) from a first NCE pointer (NP) stored in the first route entry, and routing the first packet using the ARP information in the first NCE, where a route dependency list pointer (RDLP) in the second route entry points to the first route entry.
摘要翻译：本发明涉及一种用于路由分组的方法。该方法包括接收第一分组以路由，使用与第一分组相关联的第一IP地址获得第一路由条目，其中第一路由条目包括第一前缀，第一路由下一代生成（RNG）和第一路由下一跳指针（RNP）到第二路由条目。该方法还包括将第二路由条目的路由生成（RG）与第二路由条目的RG和第一RNG相等的第一RNG进行比较，从第一NCE指针获得第一相邻高速缓存条目（NCE） NP）存储在第一路由条目中，并且使用第一NCE中的ARP信息来路由第一分组，其中第二路由入口中的路由依赖列表指针（RDLP）指向第一路由条目。

9. 发明授权

US07738457B2 Method and system for virtual routing using containers 有权
标题翻译：使用容器进行虚拟路由的方法和系统
公开(公告)号：US07738457B2
公开(公告)日：2010-06-15
申请号：US11642756
申请日：2006-12-20
申请人： Erik Nordmark , Sunay Tripathi , Nicolas G. Droux
发明人： Erik Nordmark , Sunay Tripathi , Nicolas G. Droux
IPC分类号： H04L12/28 , H04L12/56 , H04L12/66
CPC分类号： H04L45/00 , H04L45/60 , H04L49/30 , H04L49/70
摘要： In general, the invention relates to a method for routing a packet. The method includes receiving the packet in a network interface card (NIC), classifying the packet, placing the packet in a receive ring of the NIC, sending the packet to a virtual NIC associated with the receive ring, sending the packet to a first container associated with the virtual NIC, and routing the packet to a packet destination using the first container.
摘要翻译：通常，本发明涉及一种用于路由分组的方法。该方法包括在网络接口卡（NIC）中接收分组，对分组进行分类，将分组置于NIC的接收环中，将分组发送到与接收环相关联的虚拟NIC，将分组发送到第一容器与虚拟NIC相关联，并且使用第一容器将分组路由到分组目的地。

10. 发明授权

US07643482B2 System and method for virtual switching in a host 有权
标题翻译：主机中虚拟交换的系统和方法
公开(公告)号：US07643482B2
公开(公告)日：2010-01-05
申请号：US11480261
申请日：2006-06-30
申请人： Nicolas G. Droux , Sunay Tripathi , Erik Nordmark
发明人： Nicolas G. Droux , Sunay Tripathi , Erik Nordmark
IPC分类号： H04L12/28
CPC分类号： H04L49/70 , H04L45/586 , H04L69/16 , H04L69/161
摘要： A system including a plurality of virtual network interface cards (VNICs); and a Vswitch table associated with a virtual switch, wherein each entry in the Vswitch table is associated with one of the plurality of VNICs, wherein each of the plurality of VNICs is located on the host, and wherein each of the plurality of VNICs is associated with the virtual switch. The first VNIC in the plurality of VNICs is configured to receive a packet associated with a hardware address (HA), determine, using the HA, whether one of the plurality of entries in the Vswitch table is associated with the HA, send the packet to a VNIC associated with HA if one of the plurality of entries in the Vswitch table is associated with the HA, wherein the VNIC is one of the plurality of VNICs.
摘要翻译：一种包括多个虚拟网络接口卡（VNIC）的系统; 以及与虚拟交换机相关联的Vswitch表，其中所述Vswitch表中的每个条目与所述多个VNIC中的一个相关联，其中所述多个VNIC中的每一个位于所述主机上，并且其中所述多个VNIC中的每一个被关联与虚拟交换机。多个VNIC中的第一VNIC被配置为接收与硬件地址（HA）相关联的分组，使用HA确定Vswitch表中的多个条目中的一个是否与HA相关联，将分组发送到如果Vswitch表中的多个条目中的一个与HA相关联，则与HA相关联的VNIC，其中VNIC是多个VNIC中的一个。

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