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1. 发明授权

US10348646B2 Two-stage port-channel resolution in a multistage fabric switch 有权
公开(公告)号：US10348646B2
公开(公告)日：2019-07-09
申请号：US15585202
申请日：2017-05-03
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Shyam Kapadia , Nilesh Shah , Chia Tsai , Vinay Parameswarannair
IPC分类号： H04L12/28 , H04L12/947 , H04L12/933 , H04L12/743 , H04L12/741 , H04L12/721
摘要： In some embodiments, a data packet may be received at a leaf switch. A port-channel associated with a destination port for the data packet may be identified, and the data packet may be transmitted to the destination port via the identified port-channel.

2. 发明申请

US20140198800A1 MSDC SCALING THROUGH ON-DEMAND PATH UPDATE 有权
标题翻译： MSDC通过需求路径更新来缩放
公开(公告)号：US20140198800A1
公开(公告)日：2014-07-17
申请号：US13744137
申请日：2013-01-17
申请人： Cisco Technology, Inc.
发明人： Pags Krishnamoorthy , Rajagopalan Janakiraman , Chia Alex Tsai , Vinay Parameswarannair
IPC分类号： H04L12/56
CPC分类号： H04L45/02 , H04L45/26 , H04L45/583 , H04L45/64 , H04L49/15 , H04L67/10
摘要： In one embodiment, a copy of an original packet of a traffic flow is created at an ingress leaf node of a cloud switch. The ingress leaf node forwards the original packet along a less-specific path through the cloud switch, the less-specific path based on a domain index of an egress domain for the original packet. The copy of the original packet is modified to create a more specific path learn request packet. The ingress leaf node forwards the more specific path learn request packet along the less-specific path through the cloud switch. The ingress leaf node received back a more specific path learn request reply packet that includes an indication of a fabric system port. The ingress leaf node then programs a forwarding table based on the indication of the fabric system port, to have subsequent packets of the traffic flow forwarded along a more-specific path.
摘要翻译：在一个实施例中，在云交换机的入口叶节点处创建业务流的原始分组的副本。入口叶节点通过云交换机沿较不具体的路径转发原始数据包，该原始数据包是基于原始数据包的出口域的域索引的较不具体的路径。修改原始数据包的副本以创建更具体的路径学习请求数据包。入口叶节点通过云交换机沿较不具体的路径转发更具体的路径学习请求分组。入口叶节点接收到更特定的路径学习请求应答分组，其包括结构系统端口的指示。因此，入口叶节点基于结构系统端口的指示对转发表进行编程，以使业务流的后续分组沿着更具体的路径转发。

3. 发明授权

US10298484B2 MSDC scaling through on-demand path update 有权
公开(公告)号：US10298484B2
公开(公告)日：2019-05-21
申请号：US15159634
申请日：2016-05-19
申请人： Cisco Technology, Inc.
发明人： Pags Krishnamoorthy , Rajagopalan Janakiraman , Chia Alex Tsai , Vinay Parameswarannair
IPC分类号： H04L12/751 , H04L12/721 , H04L12/933 , H04L12/715 , H04L29/08 , H04L12/775
摘要： In one embodiment, a copy of an original packet of a traffic flow is created at an ingress leaf node of a cloud switch. The ingress leaf node forwards the original packet along a less-specific path through the cloud switch, the less-specific path based on a domain index of an egress domain for the original packet. The copy of the original packet is modified to create a more specific path learn request packet. The ingress leaf node forwards the more specific path learn request packet along the less-specific path through the cloud switch. The ingress leaf node received back a more specific path learn request reply packet that includes an indication of a fabric system port. The ingress leaf node then programs a forwarding table based on the indication of the fabric system port, to have subsequent packets of the traffic flow forwarded along a more-specific path.

4. 发明授权

US09660938B2 Two-stage port-channel resolution in a multistage fabric switch 有权
公开(公告)号：US09660938B2
公开(公告)日：2017-05-23
申请号：US14557670
申请日：2014-12-02
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Shyam Kapadia , Nilesh Shah , Chia Tsai , Vinay Parameswarannair
IPC分类号： H04L12/28 , H04L12/947 , H04L12/933 , H04L12/743 , H04L12/741
CPC分类号： H04L49/25 , H04L45/66 , H04L45/74 , H04L45/745 , H04L45/7453 , H04L49/10
摘要： In some embodiments, a data packet may be received at a leaf switch. A port-channel associated with a destination port for the data packet may be identified, and the data packet may be transmitted to the destination port via the identified port-channel.

5. 发明申请

US20140161131A1 Flexible and Scalable Virtual Network Segment Pruning 有权
标题翻译：灵活和可扩展的虚拟网段修剪
公开(公告)号：US20140161131A1
公开(公告)日：2014-06-12
申请号：US13711919
申请日：2012-12-12
申请人： CISCO TECHNOLOGY, INC.
发明人： Yibin Yang , Alex Tsai , Vinay Parameswarannair
IPC分类号： H04L12/56
CPC分类号： H04L45/54 , H04L12/4641 , H04L12/4658 , H04L47/12
摘要： A segment within a virtual network is identified as being supported by a segment bundling device. The segment within the virtual network supports a first host connected to a first bridging device and a second host connected to a second bridging device. The segment bundling device is used to receive virtual network address information describing the virtual network segmentation identifier (ID) for the segment used for receiving virtual network traffic for the first and second host. A segment bundling table associating a bundle ID with the virtual network segmentation identifier based on the upper ID and the lower ID of the virtual network ID is generated by the segment bundling device. The segment bundling device is used to distribute the segment bundling table to traffic forwarding devices in the virtual network that interface with the first bridging device and the second bridging device.
摘要翻译：虚拟网络中的段被识别为由段捆绑设备支持。虚拟网络内的段支持连接到第一桥接设备的第一主机和连接到第二桥接设备的第二主机。分段捆绑设备用于接收描述用于接收第一和第二主机的虚拟网络业务的分段的虚拟网络分段标识符（ID）的虚拟网络地址信息。通过分段捆绑装置生成基于虚拟网络ID的上部ID和下部ID，将捆绑ID与虚拟网络分段标识符相关联的分段捆绑表。分段捆绑设备用于将分组捆绑表分配到与第一桥接设备和第二桥接设备接口的虚拟网络中的流量转发设备。

6. 发明申请

US20160269271A1 MSDC SCALING THROUGH ON-DEMAND PATH UPDATE 审中-公开
标题翻译： MSDC通过需求路径更新来缩放
公开(公告)号：US20160269271A1
公开(公告)日：2016-09-15
申请号：US15159634
申请日：2016-05-19
申请人： Cisco Technology, Inc.
发明人： Pags Krishnamoorthy , Rajagopalan Janakiraman , Chia Alex Tsai , Vinay Parameswarannair
IPC分类号： H04L12/751 , H04L12/721 , H04L29/08 , H04L12/715
CPC分类号： H04L45/02 , H04L45/26 , H04L45/583 , H04L45/64 , H04L49/15 , H04L67/10
摘要： In one embodiment, a copy of an original packet of a traffic flow is created at an ingress leaf node of a cloud switch. The ingress leaf node forwards the original packet along a less-specific path through the cloud switch, the less-specific path based on a domain index of an egress domain for the original packet. The copy of the original packet is modified to create a more specific path learn request packet. The ingress leaf node forwards the more specific path learn request packet along the less-specific path through the cloud switch. The ingress leaf node received back a more specific path learn request reply packet that includes an indication of a fabric system port. The ingress leaf node then programs a forwarding table based on the indication of the fabric system port, to have subsequent packets of the traffic flow forwarded along a more-specific path.
摘要翻译：在一个实施例中，在云交换机的入口叶节点处创建业务流的原始分组的副本。入口叶节点通过云交换机沿较不具体的路径转发原始数据包，该原始数据包是基于原始数据包的出口域的域索引的较不具体的路径。修改原始数据包的副本以创建更具体的路径学习请求数据包。入口叶节点通过云交换机沿较不具体的路径转发更具体的路径学习请求分组。入口叶节点接收到更特定的路径学习请求应答分组，其包括结构系统端口的指示。因此，入口叶节点基于结构系统端口的指示对转发表进行编程，以使业务流的后续分组沿着更具体的路径转发。

7. 发明授权

US09219687B2 Path optimization in multi-node virtual switch with orphan ports 有权
标题翻译：具有孤立端口的多节点虚拟交换机中的路径优化
公开(公告)号：US09219687B2
公开(公告)日：2015-12-22
申请号：US13839159
申请日：2013-03-15
申请人： Cisco Technology, Inc.
发明人： Sanjay Kumar Hooda , Rajagopalan Janakiraman , Vinay Parameswarannair , Vijay Sampath
IPC分类号： H04L12/801 , H04L12/931 , H04L12/721
CPC分类号： H04L47/12 , H04L45/66 , H04L49/70
摘要： Embodiments provide techniques for optimizing paths in a network environment with a virtual network device that includes a first physical network device and a second physical network device, connected using a virtual network device layer link. Embodiments receive a first data packet belonging to a first data flow, at the first physical network device, from the second physical network device, over the virtual network device layer link. An adjacent network device from which the second physical network device received the first data packet is determined. Embodiments also determine one or more links connecting the first physical network device and the adjacent network device. A network message is transmitted to the adjacent network device, where the adjacent network device is configured to transmit subsequent data packets from the first data flow to the virtual network device, using only the determined one or more links, responsive to receiving the network message.
摘要翻译：实施例提供了利用包括使用虚拟网络设备层链路连接的第一物理网络设备和第二物理网络设备的虚拟网络设备来优化网络环境中的路径的技术。实施例通过虚拟网络设备层链路从第二物理网络设备接收属于第一物理网络设备的第一数据流的第一数据包。确定第二物理网络设备从其接收到第一数据分组的相邻网络设备。实施例还确定连接第一物理网络设备和相邻网络设备的一个或多个链路。将网络消息发送到相邻网络设备，其中相邻网络设备被配置为仅响应于接收到该网络消息而使用所确定的一个或多个链路，将后续数据分组从第一数据流发送到虚拟网络设备。

8. 发明申请

US20150085859A1 Two-Stage Port-Channel Resolution in a Multistage Fabric Switch 审中-公开
标题翻译：多级结构交换机中的两级端口通道分辨率
公开(公告)号：US20150085859A1
公开(公告)日：2015-03-26
申请号：US14557670
申请日：2014-12-02
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Shyam Kapadia , Nilesh Shah , Chia Tsai , Vinay Parameswarannair
IPC分类号： H04L12/947 , H04L12/741
CPC分类号： H04L49/25 , H04L45/66 , H04L45/74 , H04L45/745 , H04L45/7453 , H04L49/10
摘要： In some embodiments, a data packet may be received at a leaf switch. A port-channel associated with a destination port for the data packet may be identified, and the data packet may be transmitted to the destination port via the identified port-channel.
摘要翻译：在一些实施例中，可以在叶片切换器处接收数据分组。可以识别与数据分组的目的地端口相关联的端口信道，并且可以经由所识别的端口信道将数据分组发送到目的地端口。

9. 发明授权

US11146476B2 MSDC scaling through on-demand path update 有权
公开(公告)号：US11146476B2
公开(公告)日：2021-10-12
申请号：US16417249
申请日：2019-05-20
申请人： Cisco Technology, Inc.
发明人： Pags Krishnamoorthy , Rajagopalan Janakiraman , Chia Alex Tsai , Vinay Parameswarannair
IPC分类号： H04L12/715 , H04L12/933 , H04L12/721 , H04L12/751 , H04L29/08 , H04L12/775
摘要： In one embodiment, a copy of an original packet of a traffic flow is created at an ingress leaf node of a cloud switch. The ingress leaf node forwards the original packet along a less-specific path through the cloud switch, the less-specific path based on a domain index of an egress domain for the original packet. The copy of the original packet is modified to create a more specific path learn request packet. The ingress leaf node forwards the more specific path learn request packet along the less-specific path through the cloud switch. The ingress leaf node received back a more specific path learn request reply packet that includes an indication of a fabric system port. The ingress leaf node then programs a forwarding table based on the indication of the fabric system port, to have subsequent packets of the traffic flow forwarded along a more-specific path.

10. 发明申请

US20190273676A1 MSDC SCALING THROUGH ON-DEMAND PATH UPDATE 审中-公开
公开(公告)号：US20190273676A1
公开(公告)日：2019-09-05
申请号：US16417249
申请日：2019-05-20
申请人： Cisco Technology, Inc.
发明人： Pags Krishnamoorthy , Rajagopalan Janakiraman , Chia Alex Tsai , Vinay Parameswarannair
IPC分类号： H04L12/751 , H04L29/08 , H04L12/715 , H04L12/933 , H04L12/721
摘要： In one embodiment, a copy of an original packet of a traffic flow is created at an ingress leaf node of a cloud switch. The ingress leaf node forwards the original packet along a less-specific path through the cloud switch, the less-specific path based on a domain index of an egress domain for the original packet. The copy of the original packet is modified to create a more specific path learn request packet. The ingress leaf node forwards the more specific path learn request packet along the less-specific path through the cloud switch. The ingress leaf node received back a more specific path learn request reply packet that includes an indication of a fabric system port. The ingress leaf node then programs a forwarding table based on the indication of the fabric system port, to have subsequent packets of the traffic flow forwarded along a more-specific path.

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