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1. 发明授权

US08908527B2 Using context labels to scale MAC tables on computer network edge devices 有权
标题翻译：使用上下文标签缩放计算机网络边缘设备上的MAC表
公开(公告)号：US08908527B2
公开(公告)日：2014-12-09
申请号：US13018125
申请日：2011-01-31
申请人： Sami Boutros , Yuri Tsier , Muthurajah Sivabalan , Pradosh Mohapatra , Clarence Filsfils , John H. W. Bettink , Luca Martini
发明人： Sami Boutros , Yuri Tsier , Muthurajah Sivabalan , Pradosh Mohapatra , Clarence Filsfils , John H. W. Bettink , Luca Martini
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26
CPC分类号： H04L45/502 , H04L12/18 , H04L45/04
摘要： In one embodiment, an access component of a local network edge device receives traffic, and generates a frame for the traffic that includes a remote context label that identifies an access component of the remote network edge device to which the traffic is to be forwarded upon arrival at the remote network edge device, and a virtual circuit label corresponding to a particular virtual service of the traffic. The local network edge device forwards the frame towards the remote network edge device. In another embodiment, the frame may be received at a core component of the remote network edge device, an in response to the remote context label identifying an access component of the remote network edge device, forwarded to the access component, which determines the particular virtual service, and forwards the traffic from the frame out the access component towards an endpoint for the traffic.
摘要翻译：在一个实施例中，本地网络边缘设备的接入组件接收业务，并且生成包括远程上下文标签的业务的帧，所述远程上下文标签识别到达所述业务将被转发到的远程网络边缘设备的接入组件在远程网络边缘设备处，以及对应于业务的特定虚拟服务的虚拟电路标签。本地网络边缘设备将帧转发到远程网络边缘设备。在另一个实施例中，可以在远程网络边缘设备的核心组件处接收帧，响应于远程上下文标签识别远程网络边缘设备的接入组件，转发到接入组件，其确定特定虚拟服务，并将来自帧的流量从访问组件转发到流量的端点。

2. 发明申请

US20120198064A1 USING CONTEXT LABELS TO SCALE MAC TABLES ON COMPUTER NETWORK EDGE DEVICES 有权
标题翻译：使用上下文标签在计算机网络边缘设备上规模MAC表
公开(公告)号：US20120198064A1
公开(公告)日：2012-08-02
申请号：US13018125
申请日：2011-01-31
申请人： Sami Boutros , Yuri Tsier , Muthurajah Sivabalan , Pradosh Mohapatra , Clarence Filsfils , John H. W. Bettink , Luca Martini
发明人： Sami Boutros , Yuri Tsier , Muthurajah Sivabalan , Pradosh Mohapatra , Clarence Filsfils , John H. W. Bettink , Luca Martini
IPC分类号： G06F15/173
CPC分类号： H04L45/502 , H04L12/18 , H04L45/04
摘要： In one embodiment, an access component of a local network edge device receives traffic, and generates a frame for the traffic that includes a remote context label that identifies an access component of the remote network edge device to which the traffic is to be forwarded upon arrival at the remote network edge device, and a virtual circuit label corresponding to a particular virtual service of the traffic. The local network edge device forwards the frame towards the remote network edge device. In another embodiment, the frame may be received at a core component of the remote network edge device, an in response to the remote context label identifying an access component of the remote network edge device, forwarded to the access component, which determines the particular virtual service, and forwards the traffic from the frame out the access component towards an endpoint for the traffic.
摘要翻译：在一个实施例中，本地网络边缘设备的接入组件接收业务，并且生成包括远程上下文标签的业务的帧，所述远程上下文标签识别到达所述业务将被转发到的远程网络边缘设备的接入组件在远程网络边缘设备处，以及对应于业务的特定虚拟服务的虚拟电路标签。本地网络边缘设备将帧转发到远程网络边缘设备。在另一个实施例中，可以在远程网络边缘设备的核心组件处接收帧，响应于远程上下文标签识别远程网络边缘设备的接入组件，转发到接入组件，其确定特定虚拟服务，并将来自帧的流量从访问组件转发到流量的端点。

3. 发明授权

US08467403B2 Coordinated updating of forwarding information bases in a multistage packet switching device 有权
标题翻译：协调更新多级分组交换设备中的转发信息库
公开(公告)号：US08467403B2
公开(公告)日：2013-06-18
申请号：US12769946
申请日：2010-04-29
申请人： Yuri Tsier , Parag Kumar Jain , Clarence Filsfils , Sami Boutros , John H. W. Bettink
发明人： Yuri Tsier , Parag Kumar Jain , Clarence Filsfils , Sami Boutros , John H. W. Bettink
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L45/02 , H04L49/253 , H04L49/3009
摘要： Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with the coordinated updating of forwarding information bases (FIBs) in a multistage packet switching device, which performs at least lookup operations on multiple different FIBs in determining how to forward a packet. One embodiment uses lookup operations on two different FIBs, with these being an ingress FIB on an ingress line card and an egress FIB on an egress line card. In response to a change in the forwarding information for a stream of packets, the egress FIBs are first updated to include both the old and new forwarding information. After all egress FIBs have been updated, the ingress FIBs are updated to use the new forwarding information. This update procedure is designed to eliminate loss or duplication of packets induced during the updating of these FIBs to use the new forwarding information.
摘要翻译：公开了尤其涉及在多级分组交换设备中与转发信息库（FIB）的协调更新相关联的方法，装置，计算机存储介质，机制和装置，其在多个不同的FIB中执行至少查找操作来确定如何转发数据包。一个实施例对两个不同的FIB进行查找操作，这些FIB是入口线卡上的入口FIB和出口线卡上的出口FIB。响应于分组流的转发信息的改变，首先更新出口FIB以包括旧的和新的转发信息。在所有出口FIB已被更新之后，入口FIB被更新以使用新的转发信息。该更新过程旨在消除在更新这些FIB期间引起的分组丢失或重复以使用新的转发信息。

4. 发明授权

US08274977B2 Distributing packets to line cards of a packet switching device based on bridge indication values received therewith 有权
标题翻译：基于与其接收的桥接指示值，将分组分组到分组交换设备的线路卡
公开(公告)号：US08274977B2
公开(公告)日：2012-09-25
申请号：US12830277
申请日：2010-07-02
申请人： Pradosh Mohapatra , Clarence Filsfils , John H. W. Bettink , Sami Boutros
发明人： Pradosh Mohapatra , Clarence Filsfils , John H. W. Bettink , Sami Boutros
IPC分类号： H04L12/28
CPC分类号： H04L45/50 , H04L45/586 , H04L49/30 , H04L49/70
摘要： A packet switching device maintains mappings of bridge identification values to line cards for each of multiple virtual bridges. When a packet is received that includes a bridge identification value, corresponding line card(s) are identified, with each being forwarded the packet. Each of these identified line cards, in response to receipt of the packet from the line card, determines whether to forward or drop the packet based on its maintained bridge table. In this manner, the original receiving line card does not need to maintain forwarding information based on destination addresses of received packets (e.g., does not need to maintain a bridge table for each virtual bridge), but rather forwards a packet to other line cards associated with the virtual bridge corresponding to the bridge identification value received in a packet.
摘要翻译：分组交换设备维护桥接标识值与多个虚拟网桥中的每一个的线路卡的映射。当接收到包含网桥标识值的分组时，识别出相应的线路卡，每个分组被转发该分组。这些识别的线路卡中的每一个响应于从线路卡接收到的分组，确定是否基于其保持的桥接表来转发或丢弃分组。以这种方式，原始接收线路卡不需要基于接收到的分组的目的地址维护转发信息（例如，不需要维护每个虚拟桥的桥表），而是将分组转发到其他线卡其中虚拟桥对应于在分组中接收的桥标识值。

5. 发明申请

US20120002673A1 Distributing Packets to Line Cards of a Packet Switching Device Based on Bridge Indication Values Received Therewith 有权
标题翻译：根据接收到的桥接指示值将分组分组到分组交换设备的线路卡
公开(公告)号：US20120002673A1
公开(公告)日：2012-01-05
申请号：US12830277
申请日：2010-07-02
申请人： Pradosh Mohapatra , Clarence Filsfils , John H. W. Bettink , Sami Boutros
发明人： Pradosh Mohapatra , Clarence Filsfils , John H. W. Bettink , Sami Boutros
IPC分类号： H04L12/56
CPC分类号： H04L45/50 , H04L45/586 , H04L49/30 , H04L49/70
摘要： A packet switching device maintains mappings of bridge identification values to line cards for each of multiple virtual bridges. When a packet is received that includes a bridge identification value, corresponding line card(s) are identified, with each being forwarded the packet. Each of these identified line cards, in response to receipt of the packet from the line card, determines whether to forward or drop the packet based on its maintained bridge table. In this manner, the original receiving line card does not need to maintain forwarding information based on destination addresses of received packets (e.g., does not need to maintain a bridge table for each virtual bridge), but rather forwards a packet to other line cards associated with the virtual bridge corresponding to the bridge identification value received in a packet.
摘要翻译：分组交换设备维护桥接标识值与多个虚拟网桥中的每一个的线路卡的映射。当接收到包含网桥标识值的分组时，识别出相应的线路卡，每个分组被转发该分组。这些识别的线路卡中的每一个响应于从线路卡接收到的分组，确定是否基于其保持的桥接表来转发或丢弃分组。以这种方式，原始接收线路卡不需要基于接收到的分组的目的地址维护转发信息（例如，不需要维护每个虚拟桥的桥表），而是将分组转发到其他线卡其中虚拟桥对应于在分组中接收的桥标识值。

6. 发明申请

US20110268130A1 Coordinated Updating of Forwarding Information Bases in a Multistage Packet Switching Device 有权
标题翻译：多级分组交换设备中转发信息库的协调更新
公开(公告)号：US20110268130A1
公开(公告)日：2011-11-03
申请号：US12769946
申请日：2010-04-29
申请人： Yuri Tsier , Parag Kumar Jain , Clarence Filsfils , Sami Boutros , John H. W. Bettink
发明人： Yuri Tsier , Parag Kumar Jain , Clarence Filsfils , Sami Boutros , John H. W. Bettink
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L45/02 , H04L49/253 , H04L49/3009
摘要： Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with the coordinated updating of forwarding information bases (FIBs) in a multistage packet switching device, which performs at least lookup operations on multiple different FIBs in determining how to forward a packet. One embodiment uses lookup operations on two different FIBs, with these being an ingress FIB on an ingress line card and an egress FIB on an egress line card. In response to a change in the forwarding information for a stream of packets, the egress FIBs are first updated to include both the old and new forwarding information. After all egress FIBs have been updated, the ingress FIBs are updated to use the new forwarding information. This update procedure is designed to eliminate loss or duplication of packets induced during the updating of these FIBs to use the new forwarding information.
摘要翻译：公开了尤其涉及在多级分组交换设备中与转发信息库（FIB）的协调更新相关联的方法，装置，计算机存储介质，机制和装置，其在多个不同的FIB中执行至少查找操作来确定如何转发数据包。一个实施例对两个不同的FIB进行查找操作，这些FIB是入口线卡上的入口FIB和出口线卡上的出口FIB。响应于分组流的转发信息的改变，首先更新出口FIB以包括旧的和新的转发信息。在所有出口FIB已被更新之后，入口FIB被更新以使用新的转发信息。该更新过程旨在消除在更新这些FIB期间引起的分组丢失或重复以使用新的转发信息。

7. 发明申请

US20100215047A1 SUBSETS OF THE FORWARD INFORMATION BASE (FIB) DISTRIBUTED AMONG LINE CARDS IN A SWITCHING DEVICE 有权
标题翻译：在切换设备中的线卡上分配的前向信息库（FIB）的附件
公开(公告)号：US20100215047A1
公开(公告)日：2010-08-26
申请号：US12390391
申请日：2009-02-20
申请人： Clarence Filsfils , Pradosh Mohapatra , Dheerendra Talur , John H. W. Bettink , Pranav Dharwadkar , David Delano Ward
发明人： Clarence Filsfils , Pradosh Mohapatra , Dheerendra Talur , John H. W. Bettink , Pranav Dharwadkar , David Delano Ward
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L45/38 , H04L45/54 , H04L49/3009
摘要： Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with subsets of the Forward Information Base (FIB) distributed among line cards in a switching device; especially wherein one or more of the line cards does not contain the complete FIB, and this line card forwards packets, for which it does not have the forwarding information, to another line card which has the forwarding information for the packet.
摘要翻译：公开了尤其涉及在交换设备中的线路卡之间分配的前向信息库（FIB）的子集的方法，装置，计算机存储介质，机制和装置; 特别是其中一个或多个线路卡不包含完整的FIB，并且该线路卡将不具有转发信息的分组转发到具有用于分组的转发信息的另一线路卡。

8. 发明授权

US07826369B2 Subsets of the forward information base (FIB) distributed among line cards in a switching device 有权
标题翻译：在交换设备中的线路卡之间分配的前向信息库（FIB）的子集
公开(公告)号：US07826369B2
公开(公告)日：2010-11-02
申请号：US12390391
申请日：2009-02-20
申请人： Clarence Filsfils , Pradosh Mohapatra , Dheerendra Talur , John H. W. Bettink , Pranav Dharwadkar , David Delano Ward
发明人： Clarence Filsfils , Pradosh Mohapatra , Dheerendra Talur , John H. W. Bettink , Pranav Dharwadkar , David Delano Ward
IPC分类号： G01R31/08 , H04L12/50 , H04L12/28
CPC分类号： H04L45/00 , H04L45/38 , H04L45/54 , H04L49/3009
摘要： Disclosed are, inter alia, methods, apparatus, computer-storage media, mechanisms, and means associated with subsets of the Forward Information Base (FIB) distributed among line cards in a switching device; especially wherein one or more of the line cards does not contain the complete FIB, and this line card forwards packets, for which it does not have the forwarding information, to another line card which has the forwarding information for the packet.
摘要翻译：公开了尤其涉及在交换设备中的线路卡之间分配的前向信息库（FIB）的子集的方法，装置，计算机存储介质，机制和装置; 特别是其中一个或多个线路卡不包含完整的FIB，并且该线路卡将不具有转发信息的分组转发到具有用于分组的转发信息的另一线路卡。

9. 发明申请

US20160021002A1 Virtual Machines in a Packet Switching Device 审中-公开
公开(公告)号：US20160021002A1
公开(公告)日：2016-01-21
申请号：US14872981
申请日：2015-10-01
申请人： Akash R. Deshpande , John H. W. Bettink , Michael E. Lipman , Pradosh Mohapatra , Kannan Devarajan , Prabhakara R. Yellai , Rajagopalan M. Ammanur , Samir D. Thoria
发明人： Akash R. Deshpande , John H. W. Bettink , Michael E. Lipman , Pradosh Mohapatra , Kannan Devarajan , Prabhakara R. Yellai , Rajagopalan M. Ammanur , Samir D. Thoria
IPC分类号： H04L12/713 , H04L12/773
CPC分类号： H04L45/586 , H04L45/60
摘要： In one embodiment, a packet switching device creates multiple virtual packet switching devices within the same physical packet switching device using virtual machines and sharing particular physical resources of the packet switching device. One embodiment uses this functionality to change the operating version (e.g., upgrade or downgrade) of the packet switching device by originally operating according to a first operating version, operating according to both a first and second operating version, and then ceasing operating according to the first operating version. Using such a technique, a packet switching device can be upgraded or downgraded while fully operating (e.g., without having to reboot line cards and route processing engines).

10. 发明授权

US09185030B2 Virtual machines in a packet switching device 有权
标题翻译：分组交换设备中的虚拟机
公开(公告)号：US09185030B2
公开(公告)日：2015-11-10
申请号：US13329414
申请日：2011-12-19
申请人： Akash R. Deshpande , John H. W. Bettink , Michael E. Lipman , Pradosh Mohapatra , Kannan Devarajan , Prabhakara R. Yellai , Rajagopalan M. Ammanur , Samir D. Thoria
发明人： Akash R. Deshpande , John H. W. Bettink , Michael E. Lipman , Pradosh Mohapatra , Kannan Devarajan , Prabhakara R. Yellai , Rajagopalan M. Ammanur , Samir D. Thoria
IPC分类号： H04L12/28 , H04L12/713 , H04L12/773
CPC分类号： H04L45/586 , H04L45/60
摘要： In one embodiment, a packet switching device creates multiple virtual packet switching devices within the same physical packet switching device using virtual machines and sharing particular physical resources of the packet switching device. One embodiment uses this functionality to change the operating version (e.g., upgrade or downgrade) of the packet switching device by originally operating according to a first operating version, operating according to both a first and second operating version, and then ceasing operating according to the first operating version. Using such a technique, a packet switching device can be upgraded or downgraded while fully operating (e.g., without having to reboot line cards and route processing engines).
摘要翻译：在一个实施例中，分组交换设备使用虚拟机在同一物理分组交换设备内创建多个虚拟分组交换设备并共享分组交换设备的特定物理资源。一个实施例使用该功能来通过原始根据第一操作版本操作来改变分组交换设备的操作版本（例如，升级或降级），根据第一和第二操作版本操作，然后根据第第一个操作版本。使用这种技术，分组交换设备可以在完全操作的同时进行升级或降级（例如，不必重启线路卡和路由处理引擎）。

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