公开(公告)号：EP3186928A1

公开(公告)日：2017-07-05

申请号：EP15760053.7

申请日：2015-08-31

申请人： Cisco Technology, Inc.

发明人： PANI, Ayaskant ,  BANERJEE, Ayan

IPC分类号： H04L12/707

摘要： A plurality of equal cost paths through a network from a source node to a destination node are determined. A maximum bandwidth capacity for each link of each of the plurality of equal cost paths is determined, and a smallest capacity link for each of the plurality of equal cost paths is determined from the maximum capacity bandwidths for each link. An aggregated maximum bandwidth from the source node to the destination node is determined by aggregating the smallest capacity links for each of the plurality of equal cost paths. Traffic is sent from the source node along each of the plurality of equal cost paths according to a value of a capacity for the smallest capacity link for each of the plurality of equal cost paths, wherein a total of the sent traffic does not exceed the aggregated maximum bandwidth.

摘要翻译： 确定从源节点到目的地节点通过网络的多条等成本路径。 确定多个等成本路径中的每一个的每个链路的最大带宽容量，并且根据每个链路的最大容量带宽确定多个等成本路径中的每一个的最小容量链路。 通过聚合多个等成本路径中的每一个的最小容量链路来确定从源节点到目的地节点的聚合最大带宽。 根据多个等成本路径中的每一个的最小容量链路的容量值，从源节点沿多个等成本路径中的每一个发送业务量，其中发送的业务量的总和不超过聚合 最大带宽。

公开(公告)号：EP3066799A1

公开(公告)日：2016-09-14

申请号：EP14803279.0

申请日：2014-10-31

申请人： Cisco Technology, Inc.

发明人： BANERJEE, Ayan ,  MELLACHERUVU, Ramana ,  SAXENA, Abhishek ,  JAIN, Vishal ,  CAFIERO, Luca

IPC分类号： H04L12/741

CPC分类号： H04L45/745 ,  H04L45/16 ,  H04L45/72 ,  H04L45/748 ,  H04L47/33 ,  H04L51/10 ,  H04W28/12 ,  H04W72/005

摘要： Various embodiments are disclosed for increasing Layer-3 LPM (longest prefix match) routing database in a network platform. In some embodiments, chipsets in fabric modules (FMs) can be partitioned into multiple banks. Network traffic can be directed towards a corresponding bank in the FMs by using a LPM table on a line card (LC). Entries in the LPM table on the LC can be programmed either statically or dynamically based upon LPM routes that are dynamically learned.

摘要翻译： 公开了用于执行分级路由的系统，方法和非暂时性的计算机可读存储介质。 该方法包括识别计算机网络中的路由并将这些路由布置在两个单独的路由表中。 第一路由表存储在第一模块上，第二路由表存储在第二模块上。

公开(公告)号：EP3406056A1

公开(公告)日：2018-11-28

申请号：EP17703548.2

申请日：2017-01-20

申请人： Cisco Technology, Inc.

发明人： BANERJEE, Ayan ,  SIVARAMU, Raghava ,  MEHTA, Ambrish ,  NARAYANAN, Swaminathan ,  SAINI, Shiv ,  MAHAJAN, Mehak

IPC分类号： H04L12/781

CPC分类号： H04L45/741 ,  H04L45/74 ,  H04L45/748 ,  H04L49/10 ,  H04L49/25 ,  H04L49/352 ,  H04L61/6068

摘要： In one embodiment an approach is provided to efficiently program routes on line cards and fabric modules in a modular router to avoid hot spots and thus avoid undesirable packet loss. Each fabric module includes two separate processors or application specific integrated circuits (ASICs). In another embodiment, each fabric module processor is replaced by a pair of fabric module processors arranged in series with each other, and each processor is responsible for routing only, e.g., IPv4 or IPv6 traffic. The pair of fabric module processors communicates with one another via a trunk line and any packet received at either one of the pair is passed to the other of the pair before being passed back to a line card.

公开(公告)号：EP3066783A1

公开(公告)日：2016-09-14

申请号：EP14796984.4

申请日：2014-10-30

申请人： Cisco Technology, Inc.

发明人： BANERJEE, Ayan ,  RAMABADRAN, Srinivasan ,  MAHAJAN, Mehak ,  SIVARAMU, Raghava ,  BACTHU, Nataraj ,  TADIMETI, Raja Rao ,  CHEETHIRALA, Madhava Rao ,  MELLACHERUVU, Ramana

IPC分类号： H04L12/18 ,  H04L12/761 ,  H04L12/741

CPC分类号： H04L45/745 ,  H04L45/16 ,  H04L45/72 ,  H04L45/748 ,  H04L47/33 ,  H04L51/10 ,  H04W28/12 ,  H04W72/005

摘要： Various embodiments are disclosed for increasing Layer-3 LPM (longest prefix match) routing database in a network platform. In some embodiments, chipsets in fabric modules (FMs) can be partitioned into multiple banks. Network traffic can be directed towards a corresponding bank in the FMs by using a LPM table on a line card (LC). Entries in the LPM table on the LC can be programmed either statically or dynamically based upon LPM routes that are dynamically learned.

摘要翻译： 公开了用于执行分级路由的系统，方法和非暂时性的计算机可读存储介质。 该方法包括识别计算机网络中的路由并将这些路由布置在两个单独的路由表中。 第一路由表存储在第一模块上，第二路由表存储在第二模块上。

公开(公告)号：EP2327023B1

公开(公告)日：2016-08-10

申请号：EP09813344.0

申请日：2009-09-08

申请人： Cisco Technology, Inc.

发明人： BANERJEE, Ayan ,  FARINACCI, Dino ,  SIVARAMU, Raghava ,  ROY, Abhay ,  VENUGOPAL, Nair ,  SANE, Sanjay

IPC分类号： H04L12/701 ,  H04L12/801 ,  H04L12/721 ,  H04L12/851 ,  H04L12/46

CPC分类号： H04L12/4675 ,  H04L45/00 ,  H04L45/66 ,  H04L47/10 ,  H04L47/15 ,  H04L47/2408

公开(公告)号：EP2859695A2

公开(公告)日：2015-04-15

申请号：EP13718465.1

申请日：2013-04-12

申请人： Cisco Technology, Inc.

发明人： RAJAGOPALAN, Santosh ,  SANE, Sanjay ,  TRACY, Leonard T. ,  BANERJEE, Ayan

IPC分类号： H04L12/743 ,  H04L12/46 ,  H04L12/761 ,  H04L12/751

CPC分类号： H04L12/4641 ,  H04L45/02 ,  H04L45/16 ,  H04L45/7453

摘要： An example method is provided and includes a multicast data message from a data source, the message in a first virtual local area network and being associated with a multicast group. The method also includes calculating a hash value based on the virtual local area network, the data source, and the multicast group, determining a port for a designated router in a Layer-2 network based on the hash value, and switching the multicast data message to the port that was determined.

公开(公告)号：EP2850789A1

公开(公告)日：2015-03-25

申请号：EP13724967.8

申请日：2013-05-06

申请人： Cisco Technology, Inc.

发明人： PARAMESWARAN, Ramkumar ,  SHAH, Varun ,  NORDMARK, Erik ,  BANERJEE, Ayan

IPC分类号： H04L12/721 ,  H04L12/751

CPC分类号： H04L45/02 ,  H04L12/4641 ,  H04L12/4675 ,  H04L45/026 ,  H04L45/66

摘要： Systems and methods may be provided embodying an optimized Trill LAN network hello mode. The optimized hello mode may allow the number of LAN hellos exchanged to be reduced significantly in a steady state mode of operation. No modifications to the current Trill specification are needed and in a converged state (when designated RBridge election and appointed forwarder appointments are complete), only 1 hello PDU per RBridge is originated in every hello interval.

公开(公告)号：EP2850789B1

公开(公告)日：2018-07-11

申请号：EP13724967.8

申请日：2013-05-06

申请人： Cisco Technology, Inc.

发明人： PARAMESWARAN, Ramkumar ,  SHAH, Varun ,  NORDMARK, Erik ,  BANERJEE, Ayan

IPC分类号： H04L12/46 ,  H04L12/721 ,  H04L12/751

CPC分类号： H04L45/02 ,  H04L12/4641 ,  H04L12/4675 ,  H04L45/026 ,  H04L45/66

摘要： Systems and methods may be provided embodying an optimized Trill LAN network hello mode. The optimized hello mode may allow the number of LAN hellos exchanged to be reduced significantly in a steady state mode of operation. No modifications to the current Trill specification are needed and in a converged state (when designated RBridge election and appointed forwarder appointments are complete), only 1 hello PDU per RBridge is originated in every hello interval.

公开(公告)号：EP2327023A1

公开(公告)日：2011-06-01

申请号：EP09813344.0

申请日：2009-09-08

申请人： Cisco Technology, Inc.

发明人： BANERJEE, Ayan ,  FARINACCI, Dino ,  SIVARAMU, Raghava ,  ROY, Abhay ,  VENUGOPAL, Nair ,  SANE, Sanjay

IPC分类号： G06F15/16

CPC分类号： H04L12/4675 ,  H04L45/00 ,  H04L45/66 ,  H04L47/10 ,  H04L47/15 ,  H04L47/2408

摘要： In one embodiment, a method includes receiving information on layer 2 topologies at a network device in a core network, mapping one or more Virtual Local Area Networks (VLANs) to the layer 2 topologies to provide differentiated services in said layer 2 topologies, defining multiple paths for each of the layer 2 topologies, and forwarding a packet received at the network device on one of the multiple paths. An apparatus for providing differentiated services in layer 2 topologies is also disclosed.

公开(公告)号：EP4029197A1

公开(公告)日：2022-07-20

申请号：EP20775541.4

申请日：2020-09-08

申请人： Cisco Technology, Inc.

发明人： BANERJEE, Ayan ,  BATCHU, Nataraj ,  SHAH, Varun

IPC分类号： H04L12/24