公开(公告)号：WO2013132371A3

公开(公告)日：2016-09-01

申请号：PCT/IB2013051338

申请日：2013-02-19

Applicant: IBM ,  IBM UK ,  IBM (CHINA) INVEST COMPANY LTD

Inventor： KAMBLE KESHAV GOVIND ,  PEETHAMBARAM NANDAKUMAR ,  LEU DAR-REN ,  PANDEY VIJOY ,  GHOSH NIRAPADA ,  ANANTHARAM SUSHMA ,  MENDON CHANDARANI ,  MUKHERJEE NILANJAN

IPC: H04L12/66

CPC classification number: H04L49/356 ,  H04L41/12 ,  H04L41/22 ,  H04L43/045 ,  H04L43/0811 ,  H04L43/0817 ,  H04L49/555

Abstract: A distributed fabric system has distributed line card (DLC) chassis and scaled-out fabric coupler (SFC) chassis. Each DLC chassis includes a network processor and fabric ports. Each network processor of each DLC chassis includes a fabric interface in communication with the DLC fabric ports of that DLC chassis. Each SFC chassis includes a fabric element and fabric ports. A communication link connects each SFC fabric port to one DLC fabric port. Each communication link includes cell-carrying lanes. Each fabric element of each SFC chassis collects per-lane statistics for each SFC fabric port of that SFC chassis. Each SFC chassis includes program code that obtains the per-lane statistics collected by the fabric element chip of that SFC chassis. A network element includes program code that gathers the per-lane statistics collected by each fabric element of each SFC chassis and integrates the statistics into a topology of the entire distributed fabric system.

Abstract translation: 分布式架构系统具有分布式线卡（DLC）机箱和扩展架构耦合器（SFC）机箱。 每个DLC机箱都包括一个网络处理器和Fabric端口。 每个DLC机箱的每个网络处理器包括与该DLC机箱的DLC结构端口通信的结构接口。 每个SFC机箱都包括一个fabric元素和fabric端口。 通信链路将每个SFC Fabric端口连接到一个DLC fabric端口。 每个通信链路包括蜂窝载波通道。 每个SFC机箱的每个结构元素都会收集该SFC机箱的每个SFC结构端口的每通道统计信息。 每个SFC机箱都包含程序代码，用于获取该SFC机箱的织物元件芯片收集的每通道统计信息。 网元包括收集每个SFC机箱的每个结构元素收集的每通道统计信息的程序代码，并将统计信息整合到整个分布式系统的拓扑中。

公开(公告)号：DE102013210336B4

公开(公告)日：2016-12-01

申请号：DE102013210336

申请日：2013-06-04

Applicant: IBM

Inventor： KAMBLE KESHAV G ,  LEU DAR-REN ,  PANDEY VIJOY A

IPC: H04L45/16 ,  H04L45/243

Abstract: System, das aufweist: eine erste Routing-Protocol-Engine-Routing-Bridge (RPE-RBridge), die aufweist: einen lokalen Uplink-Anschluss, der so ausgelegt ist, dass er mit einem Router verbunden wird; einen lokalen Prozessor zum Ausführen von einerjeweiligen Logik zum: Empfangen eines Datenrahmens am lokalen Uplink-Anschluss; Ausführen von Protokollen, um eine Layer-3-(L3)-Verarbeitung des Datenrahmens zu ermöglichen; Verbinden von zwei Servern einer Mehrzahl von Servern in einer Verbindungszusammenlegungsgruppe-(LAG)-Cluster mit einer zweiten RPE-RBridge oder einer Nicht-RPE-RBridge, wobei das LAG-Cluster die erste RPE-RBridge und entweder die zweiten RPE-RBridge oder die Nicht-RPE-RBridge für jeden der beiden Server aufweist, wobei jede der RBridges in dem LAG-Cluster mit beiden Servern verbunden ist; Konfigurieren von gelernten Routen und von entweder der zweiten RPE-RBridge oder der Nicht-RPE-RBridge weitergeleitete Routen im lokalen Prozessor.

公开(公告)号：GB2514051A

公开(公告)日：2014-11-12

申请号：GB201414791

申请日：2013-02-19

Applicant: IBM

Inventor： KAMBLE KESHAV GOVIND ,  PEETHAMBARAM NANDAKUMAR ,  LEU DAR-REN ,  PANDEY VIJOY A ,  GHOSH NIRAPADA ,  ANANTHARAM SUSHMA ,  MENDON CHANDARANI ,  MUKHERJEE NILANJAN

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/70

Abstract: A distributed fabric system has distributed line card (DLC) chassis and scaled-out fabric coupler (SFC) chassis. Each DLC chassis includes a network processor and fabric ports. Each network processor of each DLC chassis includes a fabric interface in communication with the DLC fabric ports of that DLC chassis. Each SFC chassis includes a fabric element and fabric ports. A communication link connects each SFC fabric port to one DLC fabric port. Each communication link includes cell-carrying lanes. Each fabric element of each SFC chassis collects per-lane statistics for each SFC fabric port of that SFC chassis. Each SFC chassis includes program code that obtains the per-lane statistics collected by the fabric element chip of that SFC chassis. A network element includes program code that gathers the per-lane statistics collected by each fabric element of each SFC chassis and integrates the statistics into a topology of the entire distributed fabric system.

公开(公告)号：GB2512546A

公开(公告)日：2014-10-01

申请号：GB201412787

申请日：2013-01-17

Applicant: IBM

Inventor： KAMBLE KESHAV GOVIND ,  LEU DAR-REN ,  PANDEY VIJOY A ,  GHOSH NIRAPADA ,  MENDON CHANDARANI

IPC: H04L12/26

Abstract: A distributed fabric system comprises a plurality of independent network elements interconnected by inter-switch links and assigned to a same group. Each network element includes a switching chip, a processor, and memory storing program code that is executed by the processor. The program code of each network element includes a device configuration (DC) stacking module and a switch discovery protocol (SDP) module. The SDP module of each network element, when executed, discovers each other network element in the group and elects one of the network elements as a master network element. The SDP module of the master network element, when executed, sends messages to the DC-stacking module of the master network element. Each sent message identifies one of the network elements in the group. The DC stacking module of the master network element, when executed, maintains a record of all network elements that are currently members in the group.

公开(公告)号：GB2505129B

公开(公告)日：2014-06-25

申请号：GB201320969

申请日：2012-04-19

Applicant: IBM

Inventor： LEU DAR-REN ,  PANDEY VIJOY ,  KAMBLE KESHAV GOVIND ,  KAMATH DAYAVANTI GOPAL ,  KUMAR DEEPAK ,  KIDAMBI JAYAKRISHNA

IPC: H04L49/111 ,  H04L45/42

Abstract: A switching network includes an upper tier including a master switch and a lower tier including a plurality of lower tier entities. The master switch includes a plurality of ports each coupled to a respective one of the plurality of lower tier entities. Each of the plurality of ports includes a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier entity coupled to that port. Each of the plurality of ports also includes a receive interface that, responsive to receipt of data traffic from a particular lower tier entity among the plurality of lower tier entities, queues the data traffic to the virtual port among the plurality of virtual ports that corresponds to the RPI on the particular lower tier entity that was the source of the data traffic. The master switch further includes a switch controller that switches data traffic from the virtual port to an egress port among the plurality of ports from which the data traffic is forwarded.

公开(公告)号：GB2505129A

公开(公告)日：2014-02-19

申请号：GB201320969

申请日：2012-04-19

Applicant: IBM

Inventor： LEU DAR-REN ,  PANDEY VIJOY ,  KAMBLE KESHAV GOVIND ,  KAMATH DAYAVANTI GOPAL ,  KUMAR DEEPAK ,  KIDAMBI JAYAKRISHNA

IPC: H04L49/111 ,  H04L45/42

Abstract: A switching network includes an upper tier including a master switch and a lower tier including a plurality of lower tier entities. The master switch includes a plurality of ports each coupled to a respective one of the plurality of lower tier entities. Each of the plurality of ports includes a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier entity coupled to that port. Each of the plurality of ports also includes a receive interface that, responsive to receipt of data traffic from a particular lower tier entity among the plurality of lower tier entities, queues the data traffic to the virtual port among the plurality of virtual ports that corresponds to the RPI on the particular lower tier entity that was the source of the data traffic. The master switch further includes a switch controller that switches data traffic from the virtual port to an egress port among the plurality of ports from which the data traffic is forwarded.

公开(公告)号：DE112012001320T8

公开(公告)日：2014-01-30

申请号：DE112012001320

申请日：2012-04-12

Applicant: IBM

Inventor： KAMATH DAYAVANTI GOPAL ,  MENDON CHANDARANI ,  LEU DAR-REN ,  KAMBLE KESHAV GOVIND ,  PANDEY VIJOY ,  KIDAMBI JAYAKRISHNA

IPC: H04L47/6275 ,  H04L45/16 ,  H04L45/42 ,  H04L49/111

公开(公告)号：GB2504443A

公开(公告)日：2014-01-29

申请号：GB201320499

申请日：2012-04-12

Applicant: IBM

Inventor： KAMBLE KESHAV GOVIND ,  PANDEY VIJOY ,  KAMATH DAYAVANTI GOPAL ,  LEU DAR-REN ,  KIDAMBI JAYAKRISHNA ,  MENDON CHANDARANI

IPC: H04L47/6275 ,  H04L45/16 ,  H04L45/42 ,  H04L49/111

Abstract: A switching network includes an upper tier and a lower tier including a plurality of lower tier entities. A master switch in the upper tier, which has a plurality of ports each coupled to a respective lower tier entity, implements on each of the ports a plurality of virtual ports each corresponding to a respective one of a plurality of remote physical interfaces (RPIs) at the lower tier entity coupled to that port. Data traffic communicated between the master switch and RPIs is queued within virtual ports that correspond to the RPIs on lower tier entities with which the data traffic is communicated. The master switch enforces priority-based flow control (PFC) on data traffic of a given virtual port by transmitting, to a lower tier entity on which a corresponding RPI resides, a PFC data frame specifying priorities for at least two different classes of data traffic communicated by the particular RPI.

公开(公告)号：DE112013000506B4

公开(公告)日：2018-10-25

申请号：DE112013000506

申请日：2013-01-17

Applicant: IBM

Inventor： KAMBLE KESHAV GOVIND ,  LEU DAR-REN ,  PANDEY VIJOY ,  GHOSH NIRAPADA ,  ANANTHARAM SUSHMA ,  MENDON CHANDARANI ,  PEETHAMBARAM NANDAKUMAR

IPC: H04L12/26 ,  G06F9/50 ,  G06F13/38 ,  G06F15/173 ,  H04L12/24

Abstract: Verteiltes Struktursystem, das eine Vielzahl unabhängiger Netzwerkelemente aufweist, die durch switchübergreifende Verbindungen miteinander verbunden und einer selben Gruppe zugewiesen sind, wobei jedes Netzwerkelement einen oder mehrere Switching-Chips, einen Prozessor und einen Speicher enthält, in dem geschichteter Programmcode gespeichert ist, der durch den Prozessor ausgeführt wird, der geschichtete Programmcode jedes Netzwerkelementes ein Einheitenkonfigurations(DC)-Stapelmodul und ein Switch-Erkennungsprotokoll(SDP)-Modul enthält, das SDP-Modul jedes Netzwerkelements, wenn es ausgeführt wird, jedes andere Netzwerkelement in der Gruppe erkennt und eines der Netzwerkelemente als ein Hauptnetzwerkelement auswählt, das SDP-Modul des Hauptnetzwerkelements, wenn es ausgeführt wird, Nachrichten an das DC-Stapelmodul des Hauptnetzwerkelements sendet, jede gesendete Nachricht eines der Netzwerkelemente in der Gruppe identifiziert, das DC-Stapelmodul des Hauptnetzwerkelements, wenn es ausgeführt wird, einen Datensatz aller Netzwerkelemente pflegt, die derzeit Mitglied in der Gruppe sind, wobeidas Hauptnetzwerkelement eine Switch-Erkennungsprotokoll-Dateneinheit (SDPDU) von einem entfernt angeordneten Netzwerkelement empfängt, das kein Mitglied der Gruppe ist, und als Reaktion auf das Empfangen der SDPDU von dem entfernt angeordneten Netzwerkelement eine Nachricht an das entfernt angeordnete Netzwerkelement sendet, durch welche sich das Hauptnetzwerkelement gegenüber dem entfernt angeordneten Netzwerkelement als Hauptelement der Gruppe identifiziert, und wobeidas entfernt angeordnete Netzwerkelement, nach dem Empfangen der Nachricht von dem Hauptnetzwerkelement, durch welches sich das Hauptnetzwerkelement identifiziert, feststellt, ob das entfernt angeordnete Netzwerkelement zum Beitreten zur Gruppe bereit ist.

公开(公告)号：GB2514960B

公开(公告)日：2015-05-13

申请号：GB201416516

申请日：2012-06-15

Applicant: IBM

Inventor： KAMBLE KESHAV ,  CAMPBELL ALEXANDER PHILIP ,  PANDEY VIJOY ,  LEU DAR-REN

IPC: H04L47/43 ,  H04L49/115

Abstract: A distributed virtual chassis comprises scaled-out fabric coupler (SFC) boxes. Each SFC box has fabric ports and a cell-based switch fabric for switching cells associated with a packet among the SFC fabric ports of that SFC box. Distributed line cards (DLCs) include switching DLCs and an appliance DLC (A-DLC). Each switching DLC has network ports. Each switching DLC and A-DLC has DLC fabric ports. Each switching DLC and A-DLC is connected to each of the SFC boxes. The A-DLC provides an upper layer service for packets arriving on the network ports of the switching DLCs. To forward a packet to the A-DLC, a switching DLC divides the packet into cells and distributes the cells among the SFC boxes. The SFC boxes forward the cells to the A-DLC, and the A-DLC reassembles the packet from the cells and provides the upper layer service to the packet.