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公开(公告)号：US09930149B2
公开(公告)日：2018-03-27
申请号：US14667474
申请日：2015-03-24
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Sanjay Thyamagundalu , Mahesh Shirshyad , Nikhil Gopinath Shetty , Siva Gaggara , Bharat Kumar Bandaru
CPC classification number: H04L69/22 , H04L12/4625 , H04L12/4633 , H04L12/6418 , H04L61/2069 , H04L69/324
Abstract: An example method for to multicast traffic distribution in a multi-pod network environment is provided and includes provisioning a block of multicast group addresses for broadcast, unknown unicast and multicast (BUM) traffic distribution between pods in the multi-pod network, calculating a hash corresponding to a bridge domain (BD) extending across a plurality of pods in the multi-pod network, the hash being identically calculated at each one of the plurality of pod, indexing with the hash into the block of multicast group addresses designated for inter-pod BUM traffic to derive a global multicast group identical for the broadcast domain across the plurality of pods, and associating a local multicast group at the translator with the derived global multicast group.
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公开(公告)号：US20160285932A1
公开(公告)日：2016-09-29
申请号：US14667474
申请日：2015-03-24
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Sanjay Thyamagundalu , Mahesh Shirshyad , Nikhil Gopinath Shetty , Siva Gaggara , Bharat Kumar Bandaru
CPC classification number: H04L69/22 , H04L12/4625 , H04L12/4633 , H04L12/6418 , H04L61/2069 , H04L69/324
Abstract: An example method for to multicast traffic distribution in a multi-pod network environment is provided and includes provisioning a block of multicast group addresses for broadcast, unknown unicast and multicast (BUM) traffic distribution between pods in the multi-pod network, calculating a hash corresponding to a bridge domain (BD) extending across a plurality of pods in the multi-pod network, the hash being identically calculated at each one of the plurality of pod, indexing with the hash into the block of multicast group addresses designated for inter-pod BUM traffic to derive a global multicast group identical for the broadcast domain across the plurality of pods, and associating a local multicast group at the translator with the derived global multicast group.
Abstract translation: 提供了一种用于在多荚网络环境中组播业务分布的示例性方法，并且包括为多荚网络中的荚之间的广播，未知单播和多播（BUM）流量分配提供多播组地址块，计算散列 对应于跨多个pod网络中的多个pod延伸的网桥域（BD），该散列在多个pod中的每一个pod处被相同地计算，用散列变换成指定用于inter- pod BUM业务以导出跨多个pod的广播域相同的全局多播组，并且将转换器处的本地多播组与导出的全局多播组相关联。
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公开(公告)号：US20160142269A1
公开(公告)日：2016-05-19
申请号：US14621582
申请日：2015-02-13
Applicant: Cisco Technology, Inc.
Inventor： Satyadeva Prasad Konduru , Bharat Kumar Bandaru
IPC: H04L12/26 , H04L12/751
CPC classification number: H04L43/026 , H04L41/0803 , H04L41/12 , H04L43/028 , H04L43/0829 , H04L45/02
Abstract: Presented herein are embodiments for tracing paths of packet flows in a data center fabric network. Filters are configured on nodes (e.g., switches) in the data center fabric network for a particular packet flow. Numerous such filters can be configured on each of the switches, each filter for a different packet flow. When a filter detects a match, it sends a log of such occurrence to a network controller. The network controller uses log data sent from nodes as well as knowledge of the network topology (updated as changes occur in the network) to determine the path for a particular packet flow in the data center fabric network. This technique works inline on the actual packet flow and does not need additional debug packets to be injected. This technique can also quickly point out the problem node in case of traffic drop.
Abstract translation: 这里呈现的是用于跟踪数据中心结构网络中的分组流的路径的实施例。 过滤器被配置在特定分组流的数据中心结构网络中的节点（例如，交换机）上。 可以在每个交换机上配置许多这样的过滤器，每个过滤器用于不同的分组流。 当一个过滤器检测到匹配时，它将一个这样的事件的日志发送到网络控制器。 网络控制器使用从节点发送的日志数据以及网络拓扑知识（随着网络中的变化而更新），以确定数据中心网络中特定数据包流的路径。 这种技术在实际的数据包流上工作，不需要额外的调试数据包来进行注入。 这种技术也可以在流量下降的情况下快速指出问题节点。
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