公开(公告)号：US09825857B2

公开(公告)日：2017-11-21

申请号：US14449007

申请日：2014-07-31

Applicant: Cisco Technology, Inc.

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

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: 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：US20170207961A1

公开(公告)日：2017-07-20

申请号：US15480286

申请日：2017-04-05

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Abhishek Saxena ,  Ramana Mellacheruvu ,  Parag Deshpande

IPC: H04L12/24 ,  H04L12/753 ,  H04L12/705

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：US20150124806A1

公开(公告)日：2015-05-07

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 ,  H04L12/801 ,  H04L12/721

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.

Abstract translation: 公开了用于执行分层路由的系统，方法和非暂时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：US20150124684A1

公开(公告)日：2015-05-07

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: H04W72/00 ,  H04L12/58 ,  H04W28/12

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.

Abstract translation: 具有每个线路卡的多个线路卡具有相应的网络转发引擎和相应的输出接口（OIF）列表以及与每个线路卡与每个结构模块通信地耦合的至少一个结构模块可以具有相应的网络转发引擎。 本地OIF列表可以非对称编程。 线路卡的网络转发引擎可以被配置为接收多播分组，将与所接收的多播分组关联的多播地址与线路卡的本地OIF列表中的条目进行比较，并将接收到的多播分组转发到至少一个相关联的接口 多播地址响应于比较导致匹配。

公开(公告)号：US20150124633A1

公开(公告)日：2015-05-07

申请号：US14449007

申请日：2014-07-31

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/741 ,  H04L12/743 ,  H04L12/721

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.

Abstract translation: 公开了用于在网络平台中增加第3层LPM（最长前缀匹配）路由数据库的各种实施例。 在一些实施例中，织物模块（FM）中的芯片组可以被划分成多个组。 通过使用线路卡（LC）上的LPM表，网络流量可以指向FM中的相应银行。 可以根据动态学习的LPM路由，静态地或动态地对LC中的LPM表中的条目进行编程。

公开(公告)号：US20150103840A1

公开(公告)日：2015-04-16

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 ,  H04L29/06 ,  H04L12/46 ,  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。