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1. 发明授权

US10798025B2 Transmitting multi-destination packets in overlay networks 有权
公开(公告)号：US10798025B2
公开(公告)日：2020-10-06
申请号：US15976905
申请日：2018-05-11
申请人： International Business Machines Corporation
发明人： Bhalachandra G. Banavalikar
IPC分类号： H04L12/931 , H04L12/935 , H01L27/11556 , H01L27/11582 , H01L29/04 , H01L29/10 , H01L29/16 , H01L29/161 , H01L29/165 , H01L29/267 , H01L29/788 , H04L12/761
摘要： In an embodiment, a network adapter obtains tunneling endpoint information for each virtual switch of a plurality of virtual switches of a multi-destination group. The network adapter encapsulates each of a plurality of replicated multi-destination packets corresponding to respective virtual switches of the plurality of virtual switches with a header specific to a respective tunneling protocol identified in the tunneling endpoint information obtained for the respective virtual switch. The network adapter transmits each encapsulated multi-destination packet to a respective receiver hosted on the respective virtual switch corresponding to the encapsulated multi-destination packet, wherein the respective virtual switch determines a destination port for the encapsulated multi-destination packet on the respective virtual switch by identifying the multi-destination group, determined from the encapsulated multi-destination packet, in a port list on the respective virtual switch.

2. 发明授权

US09647953B2 Credit-based flow control in lossless Ethernet networks 有权
公开(公告)号：US09647953B2
公开(公告)日：2017-05-09
申请号：US15144614
申请日：2016-05-02
申请人： International Business Machines Corporation
发明人： Bhalachandra G. Banavalikar , Casimer M. DeCusatis , Mircea Gusat , Keshav G. Kamble , Renato J. Recio
IPC分类号： H04L12/801 , H04L12/933 , H04L12/46 , H04L12/26
CPC分类号： H04L47/39 , H04L12/4641 , H04L43/08 , H04L49/10
摘要： In one embodiment, a system includes a hardware processor and logic integrated with and/or executable by the processor or media access control (MAC) functionality of a network port. The logic is configured to negotiate a credit aging duration during initialization of a link between a receiving endpoint and a sending endpoint, the receiving and sending endpoints being connected in a network fabric. The link includes at least one virtual link. The logic is also configured to receive an amount of available flow credits from the receiving endpoint and transmit one or more packets to the receiving endpoint. The amount of available flow credits are used to determine a capacity to process packets at the receiving endpoint. The exchange of flow credits is performed on a per virtual link basis. Other systems, methods, and computer program products are presented according to more embodiments.

3. 发明申请

US20150281118A1 INTEROPERABILITY FOR DISTRIBUTED OVERLAY VIRTUAL ENVIRONMENT 有权
标题翻译：分布式覆盖虚拟环境的互操作性
公开(公告)号：US20150281118A1
公开(公告)日：2015-10-01
申请号：US14689915
申请日：2015-04-17
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Bhalachandra G. Banavalikar , Amitabha Biswas , Vinit Jain , Jayakrishna Kidambi
IPC分类号： H04L12/911 , H04L29/06 , H04L12/931
CPC分类号： H04L12/28 , G06F9/45558 , G06F2009/45595 , H04L12/4633 , H04L29/06 , H04L47/783 , H04L47/825 , H04L49/354 , H04L49/70 , H04L69/03 , H04L69/22
摘要： A method includes forwarding a request to a distributed overlay virtual Ethernet (DOVE) connectivity service (DCS) cluster for tunnel information by a source switch. In response to the request for tunnel information, the tunnel information and end point information are received. A common tunnel type supported by the source switch and a destination switch is selected. A packet is encapsulated with the common tunnel type supported by the source switch and the destination switch for a destination virtual machine (VM).
摘要翻译：一种方法包括通过源交换机将请求转发到分布式覆盖虚拟以太网（DOVE）连接服务（DCS）群集用于隧道信息。响应隧道信息的请求，接收隧道信息和终点信息。选择源交换机和目的交换机支持的公共隧道类型。数据包使用源交换机和目标虚拟机（VM）的目标交换机支持的公共隧道类型进行封装。

4. 发明申请

US20140254603A1 INTEROPERABILITY FOR DISTRIBUTED OVERLAY VIRTUAL ENVIRONMENTS 有权
标题翻译：分布式覆盖虚拟环境的互操作性
公开(公告)号：US20140254603A1
公开(公告)日：2014-09-11
申请号：US13791719
申请日：2013-03-08
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Bhalachandra G. Banavalikar , Amitabha Biswas , Vinit Jain , Jayakrishna Kidambi
IPC分类号： H04L29/06
CPC分类号： H04L12/28 , G06F9/45558 , G06F2009/45595 , H04L12/4633 , H04L29/06 , H04L47/783 , H04L47/825 , H04L49/354 , H04L49/70 , H04L69/03 , H04L69/22
摘要： Embodiments of the invention relate to providing interoperability between hosts supporting multiple encapsulation. One embodiment includes a method that includes mapping packet encapsulation protocol type information for virtual switches. Each virtual switch is associated with one or more virtual machines (VMs). It is determined whether one or more common encapsulation protocol types exist for a first VM associated with a first virtual switch and a second VM associated with a second virtual switch based on the mapping. A common encapsulation protocol type is selected if it is determined that one or more common encapsulation protocol types exist for the first virtual switch and the second virtual switch. A packet is encapsulated for communication between the first VM and the second VM using the selected common encapsulation protocol type.
摘要翻译：本发明的实施例涉及提供支持多重封装的主机之间的互操作性。一个实施例包括一种方法，其包括映射用于虚拟交换机的分组封装协议类型信息。每个虚拟交换机与一个或多个虚拟机（VM）相关联。基于映射确定是否存在与第一虚拟交换机相关联的第一虚拟机和与第二虚拟交换机相关联的第二虚拟机的一个或多个通用封装协议类型。如果确定存在用于第一虚拟交换机和第二虚拟交换机的一种或多种通用封装协议类型，则选择常见封装协议类型。使用所选择的公共封装协议类型封装分组以在第一VM和第二VM之间进行通信。

5. 发明授权

US10341131B2 Avoiding unknown unicast floods resulting from MAC address table overflows 有权
公开(公告)号：US10341131B2
公开(公告)日：2019-07-02
申请号：US14688728
申请日：2015-04-16
申请人： International Business Machines Corporation
发明人： Bhalachandra G. Banavalikar , Keshav G. Kamble , Abhijit P. Kumbhare
IPC分类号： H04L12/18 , H04L12/931 , H04L12/935 , H04L12/755 , H04L12/721 , H04L12/741
摘要： In one embodiment, a system includes a hardware processor and logic implemented with and/or executable by the processor to determine that expiration of a timer has occurred, and in response to expiration of the timer, import entries from a media access control (MAC) address table stored by a switch controller into a MAC address table stored by a switch until the MAC address table stored by the switch is full, where the logic to import entries includes logic to import entries in the MAC address table stored by the switch controller determined to be more often used into the MAC address table stored by the switch before entries determined to be less often used.

6. 发明授权

US09699277B2 Providing services to virtual overlay network traffic 有权
公开(公告)号：US09699277B2
公开(公告)日：2017-07-04
申请号：US14724756
申请日：2015-05-28
申请人： International Business Machines Corporation
发明人： Bhalachandra G. Banavalikar , Keshav G. Kamble , Dar-Ren Leu
IPC分类号： H04L12/28 , H04L12/56 , H04L29/08 , H04L29/06 , H04L12/715 , H04L12/701 , H04L12/46 , H04L12/713 , H04L12/911 , H04L12/931
CPC分类号： H04L69/324 , H04L12/46 , H04L12/4633 , H04L12/4641 , H04L29/06829 , H04L45/00 , H04L45/586 , H04L45/64 , H04L47/825 , H04L49/354 , H04L63/00 , H04L63/0236 , H04L63/0272 , H04L63/029 , H04L63/0428 , H04L63/101 , H04L63/14
摘要： In one embodiment, a method includes receiving network traffic, determining whether packets have an overlay header, terminating a tunnel and de-encapsulating inner packets of packets having an overlay header, performing services on the inner packets in response to a determination that services are to be performed on the inner packets, originating a tunnel, encapsulating a first packet of the serviced inner packets with an overlay header, and switching the encapsulated serviced inner packets to a destination address in a virtual network in response to determining that the first packet is to be switched to the destination address in the virtual network, and switching a second packet of the serviced inner packets to a destination address in a non-virtual network without encapsulating the serviced inner packets with the overlay header in response to a determination that the second packet is to be switched to the destination address in the non-virtual network.

7. 发明授权

US09544248B2 Overlay network capable of supporting storage area network (SAN) traffic 有权
标题翻译：覆盖网络能够支持存储区域网络（SAN）流量
公开(公告)号：US09544248B2
公开(公告)日：2017-01-10
申请号：US15147804
申请日：2016-05-05
申请人： International Business Machines Corporation
发明人： Bhalachandra G. Banavalikar , Keshav G. Kamble , Renato J. Recio
IPC分类号： H04L12/931 , H04L12/721 , H04L12/46 , H04L12/715 , H04L29/08
CPC分类号： H04L49/356 , H04L12/4633 , H04L45/64 , H04L45/72 , H04L49/70 , H04L67/1097
摘要： In one embodiment, a system includes a server having a hypervisor layer that includes an overlay-configured virtual switch and a Fiber Channel (FC) virtual switch. The system also includes at least one processor configured to execute logic and a converge network adapter (CNA) coupled to the hypervisor layer. The CNA is configured to communicate with the overlay-configured virtual switch and the FC virtual switch, and with a FC forwarder (FCF). Moreover, the overlay-configured virtual switch includes logic configured to communicate with a central controller. In another embodiment, a method includes receiving a block of media access control (MAC) addresses for use in local fabric initialization protocol (FIP) operations and advertising to all local Fiber Channel over Ethernet (FCoE) initiators to route FCoE traffic to a FC virtual switch by asserting an overlay-configured virtual switch as a FCF for any requesting FCoE initiators.
摘要翻译：在一个实施例中，系统包括具有管理程序层的服务器，该管理程序层包括覆盖配置的虚拟交换机和光纤通道（FC）虚拟交换机。该系统还包括被配置为执行逻辑的至少一个处理器和耦合到管理程序层的融合网络适配器（CNA）。 CNA配置为与覆盖配置的虚拟交换机和FC虚拟交换机以及FC转发器（FCF）进行通信。此外，重叠配置的虚拟交换机包括被配置为与中央控制器进行通信的逻辑。在另一个实施例中，一种方法包括接收用于本地结构初始化协议（FIP）操作中的媒体访问控制（MAC）地址块，并向所有本地以太网光纤通道（FCoE）发起者广告以将FCoE业务路由到FC虚拟通过断言覆盖配置的虚拟交换机作为任何请求的FCoE启动器的FCF来切换。

8. 发明申请

US20160248702A1 OVERLAY NETWORK CAPABLE OF SUPPORTING STORAGE AREA NETWORK (SAN) TRAFFIC 有权
标题翻译：支持存储区域（SAN）交通的覆盖网络
公开(公告)号：US20160248702A1
公开(公告)日：2016-08-25
申请号：US15147804
申请日：2016-05-05
申请人： International Business Machines Corporation
发明人： Bhalachandra G. Banavalikar , Keshav G. Kamble , Renato J. Recio
IPC分类号： H04L12/931 , H04L29/08
CPC分类号： H04L49/356 , H04L12/4633 , H04L45/64 , H04L45/72 , H04L49/70 , H04L67/1097
摘要： In one embodiment, a system includes a server having a hypervisor layer that includes an overlay-configured virtual switch and a Fibre Channel (FC) virtual switch. The system also includes at least one processor configured to execute logic and a converge network adapter (CNA) coupled to the hypervisor layer. The CNA is configured to communicate with the overlay-configured virtual switch and the FC virtual switch, and with a FC forwarder (FCF). Moreover, the overlay-configured virtual switch includes logic configured to communicate with a central controller. In another embodiment, a method includes receiving a block of media access control (MAC) addresses for use in local fabric initialization protocol (FIP) operations and advertising to all local Fibre Channel over Ethernet (FCoE) initiators to route FCoE traffic to a FC virtual switch by asserting an overlay-configured virtual switch as a FCF for any requesting FCoE initiators.
摘要翻译：在一个实施例中，系统包括具有管理程序层的服务器，该管理程序层包括覆盖配置的虚拟交换机和光纤通道（FC）虚拟交换机。该系统还包括被配置为执行逻辑的至少一个处理器和耦合到管理程序层的融合网络适配器（CNA）。 CNA配置为与覆盖配置的虚拟交换机和FC虚拟交换机以及FC转发器（FCF）进行通信。此外，重叠配置的虚拟交换机包括被配置为与中央控制器进行通信的逻辑。在另一个实施例中，一种方法包括接收用于本地结构初始化协议（FIP）操作中的媒体访问控制（MAC）地址块，并向所有本地以太网光纤通道（FCoE）发起者广告以将FCoE业务路由到FC虚拟通过断言覆盖配置的虚拟交换机作为任何请求的FCoE启动器的FCF来切换。

9. 发明申请

US20140269415A1 CREDIT-BASED FLOW CONTROL FOR MULTICAST PACKETS IN LOSSLESS ETHERNET NETWORKS 有权
标题翻译：基于信用的流量控制在无线以太网网络中的多播分组
公开(公告)号：US20140269415A1
公开(公告)日：2014-09-18
申请号：US13843905
申请日：2013-03-15
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Bhalachandra G. Banavalikar , Casimer M. DeCusatis , Mircea Gusat , Keshav G. Kamble
IPC分类号： H04L12/18
CPC分类号： H04L47/39 , H04L12/185 , H04L45/16 , H04L45/24 , H04L45/34
摘要： Methods, systems, and computer program products presented herein provide for self-routing multicast. In one embodiment, a system includes a switch controller including a hardware processor and logic integrated with and/or executable by the processor, the logic being adapted to receive a multicast data stream join request from a source device in a network, create a multipath identifier (ID) for the multipath data stream, create a series of path identifiers (IDs) for each intermediate switch in the network based on a local network topology database, each path ID being associated with a desired output port bitmap, and transmit the multipath ID and a path ID to a source of the multicast data stream, the path ID corresponding to the source of the multicast data stream join request.
摘要翻译：本文提出的方法，系统和计算机程序产品提供自路由组播。在一个实施例中，系统包括交换机控制器，其包括与处理器集成和/或可执行的硬件处理器和逻辑，该逻辑适于从网络中的源设备接收多播数据流加入请求，创建多径标识符（ID），用于基于本地网络拓扑数据库为每个中间交换机创建一系列路径标识符（ID），每个路径ID与期望的输出端口位图相关联，并且发送多路径ID 以及到多播数据流的源的路径ID，对应于多播数据流加入请求的源的路径ID。

10. 发明申请

US20130287022A1 PROVIDING SERVICES TO VIRTUAL OVERLAY NETWORK TRAFFIC 有权
标题翻译：向虚拟网络交通提供服务
公开(公告)号：US20130287022A1
公开(公告)日：2013-10-31
申请号：US13758720
申请日：2013-02-04
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Bhalachandra G. Banavalikar , Keshav G. Kamble , Dar-Ren Leu
IPC分类号： H04L12/56
CPC分类号： H04L69/324 , H04L12/46 , H04L12/4633 , H04L12/4641 , H04L29/06829 , H04L45/00 , H04L45/586 , H04L45/64 , H04L47/825 , H04L49/354 , H04L63/00 , H04L63/0236 , H04L63/0272 , H04L63/029 , H04L63/0428 , H04L63/101 , H04L63/14
摘要： According to one embodiment, a method for providing services to network traffic on a virtual overlay network includes receiving network traffic comprising a plurality of packets, determining whether the plurality of packets comprise an overlay header, terminating a tunnel and de-encapsulating inner packets of packets comprising an overlay header, performing services on the plurality of packets or the de-encapsulated inner packets, and originating a tunnel and encapsulating the serviced inner packets or the serviced packets with an overlay header to be switched to a destination address in a virtual network and sending the encapsulated packets, or sending the serviced packets without encapsulating the packets with an overlay header to be switched to a destination address in a non-virtual network.
摘要翻译：根据一个实施例，一种用于向虚拟覆盖网络上的网络流量提供服务的方法包括：接收包括多个分组的网络业务，确定所述多个分组是否包括覆盖报头，终止隧道，以及解封装所述分组的内部分组包括覆盖报头，在所述多个分组或解封装的内部分组上执行服务，以及发起隧道并将所服务的内部分组或所述服务分组封装为具有要切换到虚拟网络中的目的地地址的覆盖报头，以及发送封装的分组，或者发送所服务的分组而不用具有覆盖头的分组来封装，以将其切换到非虚拟网络中的目的地地址。

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