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1. 发明授权

US11582100B2 Seamless multi-cloud routing and policy interconnectivity 有权
公开(公告)号：US11582100B2
公开(公告)日：2023-02-14
申请号：US17719792
申请日：2022-04-13
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Sivakumar Ganapathy , Gianluca Mardente , Giovanni Meo , Patel Amitkumar Valjibhai
IPC分类号： G06F15/177 , H04L41/0816 , H04L12/46 , H04L41/0806 , H04L41/0893 , H04L45/02 , H04L45/44
摘要： Technologies for multi-cloud routing and policy interconnectivity are provided. An example method can include assigning different sets of data plane routers to data plane traffic associated with different address spaces in a cloud site of a multi-cloud fabric to yield a distributed mapping of data plane traffic and data plane routers. The method can further include providing, to an on-premises site in the multi-cloud fabric, routing entries from a control plane router on the cloud site, the routing entries reflecting the distributed mapping and identifying, for each address space, which data plane router handles data plane traffic for that address space; and when a data plane router is deployed at the cloud site, providing, to the on-premises site, updated routing information from the control plane router, the updated routing information identifying the data plane router as a next hop for data plane traffic associated with a respective address space.

2. 发明申请

US20210266256A1 SERVICE CHAINING IN MULTI-FABRIC CLOUD NETWORKS 有权
公开(公告)号：US20210266256A1
公开(公告)日：2021-08-26
申请号：US16801500
申请日：2020-02-26
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Sivakumar Ganapathy , Javed Asghar , Azeem Muhammad Suleman
IPC分类号： H04L12/741 , H04L29/08 , H04L12/26 , H04L29/12
摘要： Techniques for routing data packets through service chains within and between public cloud networks of multi-cloud fabrics. A router in a network, e.g., a public cloud network, receives data packets from nodes in the network through segments of the network. Based at least in part on (i) a source address of the data packet, (ii) a destination address of the data packet, and (iii) an identity of the segments of the network from which the data packets are received, the router determines a next node in the network to which the data packet is to be forwarded. The router may then forward the data packet through another segment of the network to the next node and then receive the data packet from the next node through the another segment.

3. 发明授权

US10574481B2 Heterogeneous capabilities in an overlay fabric 有权
公开(公告)号：US10574481B2
公开(公告)日：2020-02-25
申请号：US16042265
申请日：2018-07-23
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Ronak Desai , Kalyan Ghosh , Balaji Muthuvarathan
IPC分类号： H04L12/46 , H04L12/933 , H04L12/947 , H04L12/931 , H04L29/12
摘要： Heterogeneous capabilities in an overlay fabric may be provided. First, it may be determined that a first link and a second link support a feature. Then the first link and the second link may be traversed with traffic between a host in a first Endpoint Group (EPG) connected to a first leaf switch and a second host in a second EPG connected to a second leaf switch when a topology preference for the feature is indicated for the traffic.

4. 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.

5. 发明授权

US09680751B2 Methods and devices for providing service insertion in a TRILL network 有权
公开(公告)号：US09680751B2
公开(公告)日：2017-06-13
申请号：US14709125
申请日：2015-05-11
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Pags Krishnamoorthy , Sridhar Subramanian , Venkataraman Natham
IPC分类号： H04L12/801 , H04L12/721 , H04L12/803 , H04L29/08
CPC分类号： H04L47/10 , H04L45/38 , H04L45/66 , H04L47/125 , H04L67/1023
摘要： The methods and devices discussed herein provide service clustering within a TRILL network without relying on an additional service insertion framework. A TRILL network can include one or more flow distribution RBridges for distributing flows to service nodes. Each flow distribution RBridge can have a virtual base identifier and one or more virtual cluster identifiers. An example method can include maintaining service cluster load balancing structures and receiving a packet that is encapsulated with an inner header and an outer header. The method can include determining whether the egress RBridge identifier is a virtual cluster identifier, and if so, selecting a service node from one of the service cluster load balancing structures. The method can include forwarding the packet to the selected service node.

6. 发明授权

US09531564B2 Single hop overlay architecture for line rate performance in campus networks 有权
标题翻译：校园网线路速率性能的单跳覆盖架构
公开(公告)号：US09531564B2
公开(公告)日：2016-12-27
申请号：US14155493
申请日：2014-01-15
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Anupama Ashok Lolage , Pags Krishnamoorthy , Sanjay Kumar Hooda , Nalinaksh M. Pai
IPC分类号： H04L12/741 , H04L12/733 , H04L12/46 , H04L12/715 , H04L12/721
CPC分类号： H04L12/4633 , H04L12/4641 , H04L45/64 , H04L45/66
摘要： Methods and systems are provided for detecting overlay end points which are a single physical hop away and employing a simplified overlay header instead of a regular overlay header for communications with the identified end points. The simplified overlay header may carry overlay protocol related forwarding and peer information and may be designed to carry locally significant forwarding information which avoids overlay lookup related overhead on encapsulation and decapsulation operations. The simplified overlay header may be handled in the same forwarding pipeline pass as the handling of the inner frame and may work across different forwarding engines. Upon detection of a single hop link/keepalive failure, the backup overlay (original overlay header) may be used for forwarding.
摘要翻译：提供了用于检测作为单个物理跳越的重叠端点的方法和系统，并且采用简化的覆盖报头而不是用于与所识别的端点进行通信的常规覆盖报头。简化的覆盖报头可以携带覆盖协议相关的转发和对等信息，并且可以被设计为承载本地有效的转发信息，这避免了在封装和解封装操作上的覆盖查找相关开销。简化的覆盖报头可以处理在与内部帧的处理相同的转发流水线中，并且可以跨不同的转发引擎工作。在检测到单跳链路/保活性故障时，可以使用备份覆盖（原始覆盖报头）进行转发。

7. 发明申请

US20160099858A1 Span Session Monitoring 有权
标题翻译：跨度会话监控
公开(公告)号：US20160099858A1
公开(公告)日：2016-04-07
申请号：US14967669
申请日：2015-12-14
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Yibin Yang , Pags Krishnamoorthy , Padmanabhan Krishnan
IPC分类号： H04L12/26 , H04L12/24
CPC分类号： H04L43/18 , H04L41/12 , H04L43/00 , H04L43/08 , H04L43/12
摘要： A monitoring session associated with a virtual nickname may be established in a TRILL network. A monitoring station may be connected to an edge switch of the TRILL network specifying the virtual nickname for the monitoring session. The monitoring station is set as a destination for the monitoring session and the virtual nickname is flooded throughout the TRILL network. A source may then be configured to the monitoring session by specifying the virtual nickname of the monitoring session without knowing the destination tied to the monitoring session. Network traffic through the source may then be forwarded to the destination tied to the monitoring session.
摘要翻译：可以在TRILL网络中建立与虚拟昵称相关联的监视会话。监控站可以连接到TRILL网络的边缘交换机，指定监视会话的虚拟昵称。监控站被设置为监视会话的目的地，虚拟昵称在整个TRILL网络中泛滥。然后，可以通过在不知道与监视会话相关联的目的地的情况下指定监视会话的虚拟昵称来将源配置为监视会话。然后可以将通过源的网络流量转发到与监视会话相关联的目的地。

8. 发明授权

US09215147B2 Flexible and scalable monitoring in a TRILL network 有权
标题翻译：灵活和可扩展的监控在TRILL网络
公开(公告)号：US09215147B2
公开(公告)日：2015-12-15
申请号：US13942426
申请日：2013-07-15
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Yibin Yang , Pags Krishnamoorthy , Padmanabhan Krishnan
IPC分类号： H04L12/24 , H04L12/26
CPC分类号： H04L43/18 , H04L41/12 , H04L43/00 , H04L43/08 , H04L43/12
摘要： A monitoring session associated with a virtual nickname may be established in a TRILL network. A monitoring station may be connected to an edge switch of the TRILL network specifying the virtual nickname for the monitoring session. The monitoring station is set as a destination for the monitoring session and the virtual nickname is flooded throughout the TRILL network. A source may then be configured to the monitoring session by specifying the virtual nickname of the monitoring session without knowing the destination tied to the monitoring session. Network traffic through the source may then be forwarded to the destination tied to the monitoring session.
摘要翻译：可以在TRILL网络中建立与虚拟昵称相关联的监视会话。监控站可以连接到TRILL网络的边缘交换机，指定监视会话的虚拟昵称。监控站被设置为监视会话的目的地，虚拟昵称在整个TRILL网络中泛滥。然后，可以通过在不知道与监视会话相关联的目的地的情况下指定监视会话的虚拟昵称来将源配置为监视会话。然后可以将通过源的网络流量转发到与监视会话相关联的目的地。

9. 发明申请

US20150200848A1 Single Hop Overlay Architecture for Line Rate Performance in Campus Networks 有权
标题翻译：校园网线路速率性能的单跳覆盖架构
公开(公告)号：US20150200848A1
公开(公告)日：2015-07-16
申请号：US14155493
申请日：2014-01-15
申请人： Cisco Technology, Inc.
发明人： Rajagopalan Janakiraman , Anupama Ashok Lolage , Pags Krishnamoorthy , Sanjay Kumar Hooda , Nalinaksh M. Pai
IPC分类号： H04L12/741 , H04L12/733
CPC分类号： H04L12/4633 , H04L12/4641 , H04L45/64 , H04L45/66
摘要： Methods and systems are provided for detecting overlay end points which are a single physical hop away and employing a simplified overlay header instead of a regular overlay header for communications with the identified end points. The simplified overlay header may carry overlay protocol related forwarding and peer information and may be designed to carry locally significant forwarding information which avoids overlay lookup related overhead on encapsulation and decapsulation operations. The simplified overlay header may be handled in the same forwarding pipeline pass as the handling of the inner frame and may work across different forwarding engines. Upon detection of a single hop link/keepalive failure, the backup overlay (original overlay header) may be used for forwarding.
摘要翻译：提供了用于检测作为单个物理跳越的重叠端点的方法和系统，并且采用简化的覆盖报头而不是用于与所识别的端点进行通信的常规覆盖报头。简化的覆盖报头可以携带覆盖协议相关的转发和对等信息，并且可以被设计为承载本地有效的转发信息，这避免了在封装和解封装操作上的覆盖查找相关开销。简化的覆盖报头可以处理在与内部帧的处理相同的转发流水线中，并且可以跨不同的转发引擎工作。在检测到单跳链路/保活性故障时，可以使用备份覆盖（原始覆盖报头）进行转发。

10. 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。

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