公开(公告)号：US10904146B2

公开(公告)日：2021-01-26

申请号：US16133370

申请日：2018-09-17

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Ramana Mellacheruvu ,  Abhishek Saxena ,  Vishal Jain ,  Luca Cafiero

IPC: H04L12/741 ,  H04L12/761 ,  H04L12/745 ,  H04L12/58 ,  H04W28/12 ,  H04W72/00 ,  H04L12/721 ,  H04L12/801

Abstract: Systems, methods, and non-transitory computer-readable storage media for performing hierarchical routing are disclosed. The method includes identifying routes in a computer network and arranging those routes in two separate routing tables. The first routing table is stored on a first module and the second routing table is stored on a second module.

公开(公告)号：US10374952B2

公开(公告)日：2019-08-06

申请号：US15792615

申请日：2017-10-24

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Sameer Merchant ,  Ramana Mellacheruvu ,  Ramesh V. N. Ponnapalli ,  Srinivasan Ramabadran

IPC: H04L12/745 ,  H04L12/741 ,  H04L12/58 ,  H04W28/12 ,  H04W72/00 ,  H04L12/721 ,  H04L12/801 ,  H04L12/761

Abstract: 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.

公开(公告)号：US09655232B2

公开(公告)日：2017-05-16

申请号：US14459085

申请日：2014-08-13

Applicant: Cisco Technology, Inc.

Inventor： Abhishek Saxena ,  Ramana Mellacheruvu ,  Parag Deshpande

IPC: H04L12/26 ,  H05K1/02 ,  H04L12/24 ,  H04L12/753 ,  H04L12/705 ,  G06F1/16 ,  H05K1/11

CPC classification number: H05K1/0245 ,  G06F1/16 ,  H04L41/0803 ,  H04L41/0806 ,  H04L41/0876 ,  H04L41/12 ,  H04L45/18 ,  H04L45/48 ,  H05K1/0216 ,  H05K1/115 ,  Y02D30/30

Abstract: Systems and approaches are provided for optimizing the Spanning Tree Protocol (STP) in a switched network. STP port type for a network infrastructure device can be controlled based on the dynamically discovered neighbor device type of the directly connected peer of the device using the Link Level Discovery Protocol (LLDP). LLDP can provide system capabilities of a link level peer to identify whether the link level peer is a host or a network infrastructure device. In various embodiments, the exchange of system capabilities can the trigger the configuration of an STP port as a network port for ports connected to network infrastructure devices or edge ports for ports directly connected to host devices.

公开(公告)号：US20190020585A1

公开(公告)日：2019-01-17

申请号：US16133370

申请日：2018-09-17

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Ramana Mellacheruvu ,  Abhishek Saxena ,  Vishal Jain ,  Luca Cafiero

IPC: H04L12/741 ,  H04L12/745 ,  H04W72/00 ,  H04L12/761 ,  H04L12/721 ,  H04W28/12 ,  H04L12/58 ,  H04L12/801

Abstract: Systems, methods, and non-transitory computer-readable storage media for performing hierarchical routing are disclosed. The method includes identifying routes in a computer network and arranging those routes in two separate routing tables. The first routing table is stored on a first module and the second routing table is stored on a second module.

公开(公告)号：US10182496B2

公开(公告)日：2019-01-15

申请号：US15480286

申请日：2017-04-05

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Abhishek Saxena ,  Ramana Mellacheruvu ,  Parag Deshpande

IPC: H04L12/26 ,  H05K1/02 ,  H04L12/24 ,  H04L12/753 ,  H04L12/705 ,  G06F1/16 ,  H05K1/11

Abstract: Systems and approaches are provided for optimizing the Spanning Tree Protocol (STP) in a switched network. STP port type for a network infrastructure device can be controlled based on the dynamically discovered neighbor device type of the directly connected peer of the device using the Link Level Discovery Protocol (LLDP). LLDP can provide system capabilities of a link level peer to identify whether the link level peer is a host or a network infrastructure device. In various embodiments, the exchange of system capabilities can the trigger the configuration of an STP port as a network port for ports connected to network infrastructure devices or edge ports for ports directly connected to host devices.

公开(公告)号：US20180048568A1

公开(公告)日：2018-02-15

申请号：US15792615

申请日：2017-10-24

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Sameer Merchant ,  Ramana Mellacheruvu ,  Ramesh V.N. Ponnapalli ,  Srinivasan Ramabadran

IPC: H04L12/741 ,  H04W72/00 ,  H04L12/761 ,  H04L12/801 ,  H04L12/721 ,  H04W28/12 ,  H04L12/58 ,  H04L12/745

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

Abstract: 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.

公开(公告)号：US09742673B2

公开(公告)日：2017-08-22

申请号：US14477244

申请日：2014-09-04

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Srinivasan Ramabadran ,  Mehak Mahajan ,  Raghava Sivaramu ,  Nataraj Bacthu ,  Raja Rao Tadimeti ,  Madhava Rao Cheethirala ,  Ramana Mellacheruvu

IPC: H04H20/71 ,  H04L12/741 ,  H04L12/58 ,  H04W28/12 ,  H04W72/00 ,  H04L12/721 ,  H04L12/801 ,  H04L12/761 ,  H04L12/745

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

Abstract: A plurality of line cards with each line card having a respective network forwarding engine and a respective outgoing interface (OIF) list and at least one fabric module communicatively coupled with each line card with each fabric module can have a respective network forwarding engine. The local OIF list can be asymmetrically programmed. The network forwarding engine of a line card can be configured to receive a multicast packet, compare a multicast address associate with the received multicast packet with entries in the local OIF list of the line card and forward the received multicast packet to at least one interface associated with the multicast address in response to the comparison resulting in a match.

公开(公告)号：US09509630B2

公开(公告)日：2016-11-29

申请号：US14574031

申请日：2014-12-17

Applicant: Cisco Technology, Inc.

Inventor： Smitha Narayanaswamy ,  Ganesan Rajagopal ,  Sanjay Sane ,  Ramana Mellacheruvu ,  Umesh Mahajan

IPC: H04L12/927 ,  H04L12/46 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L47/803 ,  H04L12/46 ,  H04L12/4645 ,  H04L63/0236 ,  H04L63/0876 ,  H04L67/1097

Abstract: Methods and apparatus for segregating traffic are disclosed. In accordance with one embodiment, a traffic splitter identifies a set of links coupled to the traffic splitter, where the set of links includes two or more uplinks, wherein each of the two or more uplinks are implemented in a common physical media. The two or more uplinks include a LAN uplink coupled to a LAN and a SAN uplink coupled to a SAN. The traffic splitter prevents SAN traffic from reaching the LAN via the LAN uplink. In addition, the traffic splitter prevents LAN traffic from reaching the SAN via the SAN uplink.

Abstract translation: 公开了用于隔离业务的方法和装置。 根据一个实施例，业务分配器识别耦合到业务分路器的一组链路，其中该组链路包括两个或更多个上行链路，其中两个或更多个上行链路中的每一个在公共物理介质中实现。 两个或更多个上行链路包括耦合到LAN的LAN上行链路和耦合到SAN的SAN上行链路。 流量分配器防止SAN流量通过LAN上行链路到达LAN。 此外，流量分配器防止LAN流量通过SAN上行链路到达SAN。

公开(公告)号：US20150124655A1

公开(公告)日：2015-05-07

申请号：US14459085

申请日：2014-08-13

Applicant: Cisco Technology, Inc.

Inventor： Abhishek Saxena ,  Ramana Mellacheruvu ,  Parag Deshpande

IPC: H04L12/24

CPC classification number: H05K1/0245 ,  G06F1/16 ,  H04L41/0803 ,  H04L41/0806 ,  H04L41/0876 ,  H04L41/12 ,  H04L45/18 ,  H04L45/48 ,  H05K1/0216 ,  H05K1/115 ,  Y02D30/30

Abstract: Systems and approaches are provided for optimizing the Spanning Tree Protocol (STP) in a switched network. STP port type for a network infrastructure device can be controlled based on the dynamically discovered neighbor device type of the directly connected peer of the device using the Link Level Discovery Protocol (LLDP). LLDP can provide system capabilities of a link level peer to identify whether the link level peer is a host or a network infrastructure device. In various embodiments, the exchange of system capabilities can the trigger the configuration of an STP port as a network port for ports connected to network infrastructure devices or edge ports for ports directly connected to host devices.

Abstract translation: 提供了系统和方法来优化交换网络中的生成树协议（STP）。 可以基于使用链路层发现协议（LLDP）的设备的直接连接对等体的动态发现的邻居设备类型来控制网络基础设施设备的STP端口类型。 LLDP可以提供链路级对等体的系统能力，以识别链路级对等体是主机还是网络基础设施设备。 在各种实施例中，系统能力的交换可以触发STP端口的配置，作为连接到网络基础设施设备的端口的网络端口或直接连接到主机设备的端口的边缘端口。

公开(公告)号：US10079761B2

公开(公告)日：2018-09-18

申请号：US14477753

申请日：2014-09-04

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Ramana Mellacheruvu ,  Abhishek Saxena ,  Vishal Jain ,  Luca Cafiero

IPC: H04L12/741 ,  H04L12/58 ,  H04W28/12 ,  H04W72/00 ,  H04L12/721 ,  H04L12/801 ,  H04L12/761 ,  H04L12/745

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

Abstract: Systems, methods, and non-transitory computer-readable storage media for performing hierarchical routing are disclosed. The method includes identifying routes in a computer network and arranging those routes in two separate routing tables. The first routing table is stored on a first module and the second routing table is stored on a second module.