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公开(公告)号：US20160269271A1
公开(公告)日：2016-09-15
申请号：US15159634
申请日：2016-05-19
Applicant: Cisco Technology, Inc.
IPC: H04L12/751 , H04L12/721 , H04L29/08 , H04L12/715
Abstract: 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.
Abstract translation: 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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公开(公告)号：US20150016301A1
公开(公告)日：2015-01-15
申请号：US13942426
申请日：2013-07-15
Applicant: Cisco Technology, Inc.
Inventor： Rajagopalan Janakiraman , Yibin Yang , Pags Krishnamoorthy , Padmanabhan Krishnan
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US09680751B2
公开(公告)日：2017-06-13
申请号：US14709125
申请日：2015-05-11
Applicant: Cisco Technology, Inc.
IPC: H04L12/801 , H04L12/721 , H04L12/803 , H04L29/08
CPC classification number: H04L47/10 , H04L45/38 , H04L45/66 , H04L47/125 , H04L67/1023
Abstract: 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.
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Patent Agency Ranking
14.发明授权公开(公告)号：US09531564B2
公开(公告)日：2016-12-27
申请号：US14155493
申请日：2014-01-15
Applicant: Cisco Technology, Inc.
Inventor： Rajagopalan Janakiraman , Anupama Ashok Lolage , Pags Krishnamoorthy , Sanjay Kumar Hooda , Nalinaksh M. Pai
IPC: H04L12/741 , H04L12/733 , H04L12/46 , H04L12/715 , H04L12/721
CPC classification number: H04L12/4633 , H04L12/4641 , H04L45/64 , H04L45/66
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20160099858A1
公开(公告)日：2016-04-07
申请号：US14967669
申请日：2015-12-14
Applicant: Cisco Technology, Inc.
Inventor： Rajagopalan Janakiraman , Yibin Yang , Pags Krishnamoorthy , Padmanabhan Krishnan
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US09215147B2
公开(公告)日：2015-12-15
申请号：US13942426
申请日：2013-07-15
Applicant: Cisco Technology, Inc.
Inventor： Rajagopalan Janakiraman , Yibin Yang , Pags Krishnamoorthy , Padmanabhan Krishnan
Abstract: 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.
Abstract translation: 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。
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17.发明申请公开(公告)号：US20150200848A1
公开(公告)日：2015-07-16
申请号：US14155493
申请日：2014-01-15
Applicant: Cisco Technology, Inc.
Inventor： Rajagopalan Janakiraman , Anupama Ashok Lolage , Pags Krishnamoorthy , Sanjay Kumar Hooda , Nalinaksh M. Pai
IPC: H04L12/741 , H04L12/733
CPC classification number: H04L12/4633 , H04L12/4641 , H04L45/64 , H04L45/66
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20140198800A1
公开(公告)日：2014-07-17
申请号：US13744137
申请日：2013-01-17
Applicant: Cisco Technology, Inc.
IPC: H04L12/56
Abstract: 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.
Abstract translation: 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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