思科—型号SLM248G介绍

Cisco SLM224PCisco SLM248GCisco SLM2024无论在何种网络环境中，我们都要依赖交换机来构建网络，而交换机性能、功能的优劣则在很大程度上决定了网络的整体性能。

随着网络成为我们日常办公的主要工具，在各种办公环境中对网络质量的要求也越来越高。

时至今日，我们已经很少能够在企业网中看见古老的集线器，取而代之的则是各种高性能交换机。

作为网络设备商中的翘楚，思科的网络设备一直被很多专业用户所青睐。

虽然我们可以在市场上看到各种各样的交换机产品，但是不同品牌、不同价格的交换机往往在性能、功能上有着较大的差距：以往很多办公网络中都是在使用傻瓜型交换机，这种没有管理功能，只提供简单数据交换功能的设备，其最大的优势在于价格便宜。

但是随着网络数据量的增加以及企业用户对网络安全、功能的更多要求，智能型交换机逐步成为了办公网络中的主流，而思科的产品凭借着自身的技术优势，在很多方面都有着胜人一筹的表现。

思科SLM系列交换机虽然属于人门级管理交换机，但是其管理快捷、配置简单，产品型号选择空间大，提供多种类型设备，端口从24口到48口，可以满足各种用户的需要。

该系列交换机可以让管理员根据需要来管理数据流量，针对不同用户的需求，交换机提供了绝对优先级和wRR控制，该特性可充分保证数据流量的区分对待，同时又可以满足对时间敏感业务(例如语音数据)的QoS需求。

在一些比较大的网络中，我们经常要针对不同的网络用户来划分多重业务区域管理。

如果使用思科SLM系列交换机，管理员就可以在交换机上规划VLA N，最多支持高达128个VLAN，充分满足客户的需求。

而且SLM系列产品都可以采用Web方式对设备进行管理。

相对Telnet，其简便直观的Web管理方式让网络规划变得更为简单。

Ciseo SLM224P在千兆网络逐步普及的今天，看见一款百兆交换机的确让人有些吃惊。

不过对于SLM224P这款款百兆交换机来说，你不要把它看作是什么过时产品。

精睿系列产品销售技巧为什么要销售Cisco精睿系列产品？⏹Cisco精睿系列主要目标：–为中小企业用户（SMB）提供产品和解决方案–为大中型企业的网络提供接入层设备⏹与Cisco的原产品线相比较具有较好的价格竞争优势（详见后面的对比表）⏹与H3C的同类产品线相比较具有品牌和价格上的竞争优势（详见后面的对比表）⏹所以选择的精睿系列可以获得最大的利益！！！与Cisco相比较，属于同样的品牌但是价格具有竞争优势与H3C相比较，具有品牌和价格双重优势！典型案例一、小型企业网络解决方案一（百兆接入）某公交公司配备300终端用户，因工作需要，大部分用户需要访问数据中心服务器，访问互联网用户较少。

结合具体的实际情况，配置CISCO 3560-48TS-S三层交换机一台，配置相应数量多模模块；接入层交换机选用CISCO 2918-24TC-C或者Cisco SLM224G2，配置千兆多模模块用于连接核心交换机，从而达到主干千兆，百兆到桌面。

配置如下所示：二、小型企业网络解决方案二（千兆接入）某市烟草大楼， 300台终端PC，因工作需要，主要是访问内网服务器。

根据用户的需求，主干千兆，桌面千兆接入。

核心交换机选用Cisco 3560G-24/48 TS，该款交换机配置全千兆交换机，根据用户的要求配置相应数量模块。

接入层交换机选用Cisco srw2024和Cisco srw2048两款全千兆接入交换机。

中型企业网络解决方案一（百兆接入）某中型制造企业，担任重要生产任务，对网络可靠性、稳定性高，我们选用思科系列网络产品。

核心交换机选用CISCO 4506一台，配置WS-X4515一块，配置WS-X4548-GB-RJ45电接口业务板一块，配置WS-X4306-GB光接口业务板一块，配置PWR-C45-1400AC电源两块。

汇聚层交换机选用CISCO? 3750G-12S，该款交换机为三层全千兆光口交换机，12光接口，并配置相应数量光模块。

思科SLM224G2-CN带有2个Combo SFP 的24-端口10/100 + 2-端口10/100/1000千兆位高级智能交换机——适用于您成长中的企业，具备简单网管功能的经济有效而又安全的交换机成长中的企业需要一个能够不断满足企业自身变化需求的并且成本低廉的网络解决方案。

Cisco SLM224G2智能交换机能够以一个经济有效的价格为您的企业网络基础架构带来全新水平的智能性和安全性。

它提供24个10/100M以太网（铜缆）端口，并且带有2个10/100/1000M自适应的铜缆接口或可选光纤（SFP）接口为接入用户提供从网络边缘到网络核心的千兆上行链路。

对于任何规模的企业，网络安全性始终被置于较高的优先级别而加以考虑，企业经常担心非授权的用户对网络或业务关键数据进行访问。

这款SLM224G2交换机能够通过802.1x端口认证技术和MAC地址过滤技术使企业的网络变得更加安全，802.1x在交换机端口转发数据之前要求接入用户进行自身的身份验证。

企业用户越来越意识到VoIP语音呼叫的优越性并且正在迅速地把其语音业务迁移到基于IP的平台上来，这就需要其本地网络能够同时有效地支持语音和数据的应用程序。

SLM224G2交换机广泛而丰富的QoS特性为诸如语音、视频等实时应用程序提供了理想的解决方案。

通过四个优先级队列的划分，配合加权轮叫调度（WRR）或严格优先级调度（SP）算法，网络管理员能够快速地把语音/视频等实时数据流和其他数据流加以区分，使实时应用能够获得优先处理。

通过配置各种服务等级（Class of Service，CoS）参数，如：端口、第2层优先级（802.1p）、第3层优先级（TOS或DSCP）等，特殊的用户或应用程序也能够获得较其他用户或程序更高的优先级别。

智能的广播、组播及未知单播风暴控制功能能够把这几类风暴对正常数据流的影响减至最低。

IGMP嗅探功能限制极占带宽的视频数据流，使其仅仅转发至发起视频请求的用户而非滥发至所有用户。

思科路由器和交换机型号介绍（网上找来并自己修改过）标签: 思科路由器型号交换机2009-05-31 10:08cisco路由器型号介绍在网上搜了一下, 没找到比较全面的. 就自己来编一个吧, 但也不一定会很全啊,尽量,呵呵^_^先看一个总体一览----------------------------------------------------------------------产品特性---------------------------------------------------------------------700系列ISDN路由器-76x型: 1E(10baseT)+1*BRI(NT1)-77x型: 4E(10baseT)+2个模拟电话端口(NT1)-支持30个用户---------------------------------------------------------------------800系列采用CiscoIOS技术的ISDN,IDSL和串行路由器-1*BRI(可选的NT1)、IDSL或1端口串行-可选的4端口以太网集线器和2个模拟电话端口(NT1型号)-增强的安全特性----------------------------------------------------------------------1000系列固定配置桌面访问路由器-1E-1*BRI(可选的NT1）或1端口同步或异步串行----------------------------------------------------------------------1400系列ADSL路由器-1E(10baseT)和1ATM-25(1401),或1E和1ADSL(DMT-2)(1417)-旨在提供高达8Mbps的DSL访问-Cisco端到端DSL解决方案的一部份----------------------------------------------------------------------1600系列模块化桌面访问路由器-1E or 2E(10baseT)-1*BRI(可选的NT1)或1端口同步或异步串行-1WIC槽----------------------------------------------------------------------1700系列灵活、安全的模块化访问路由器-1FE-模块化插槽支持广泛的广域网和模拟语音接口卡-支持安全的Internet、Lan、Wan访问以及新广域网应用，包括VPN、集成化语音/Voip和宽带----------------------------------------------------------------------2500系列固定配置及模块化配置访问路由器和服务器-单或双Lan，EtherNet or TokengRing-路由器/集线器或访问服务器-单、双串行或高密度串行模型----------------------------------------------------------------------2600系列模块化访问路由器、语音数据网关和拨号访问服务器-单或双Lan，EtherNet or TokenRing-与1600,1700和3600系列共享Wan Interface和网络模块。

2.4G有源卡⽅案SI24R1+AT2401C+16M晶振Si24R1 是⼀颗⼯作在2.4GHz ISM 频段，专为低功耗⽆线场合设计，集成嵌⼊式ARQ 基带协议引擎的⽆线收发器芯⽚。

⼯作频率范围为2400MHz-2525MHz，共有126个1MHz 带宽的信道。

Si24R1采⽤GFSK/FSK数字调制与解调技术。

数据传输速率与PA 输出功率都可以调节，⽀持2Mbps,1Mbps,250Kbps 三种数据速率。

⾼的数据速率可以在更短的时间完成同样的数据收发，因此可以具有更低的功耗。

Si24R1 针对低功耗应⽤场合进⾏了特别优化，在关断模式下，所有寄存器值与FIFO 值保持不变，关断电流⼩于0.7uA；在待机模式下，时钟保持⼯作，电流⼩于17uA，并且可以在不到130uS 时间内开始数据的收发。

Si24R1 操作⽅式⾮常⽅便，只需要微控制（MCU）通过SPI 接⼝对芯⽚少数⼏个寄存器配置即可以实现数据的收发通信。

嵌⼊式ARQ 基带引擎基于包通信原理，⽀持多种通信模式，可以⼿动或全⾃动ARQ 协议操作。

内部集成收发FIFO，可以保证芯⽚与MCU 数据连续传输，增强型ARQ 基带协议引擎能处理所有⾼速操作，因此⼤⼤降低了MCU 的系统消耗。

Si24R1 具有⾮常低的系统应⽤成本，只需要⼀个MCU 和少量外围⽆源器件即可以组成⼀个⽆线数据收发系统。

内部集成⾼PSRR 的LDO 电源，保证 1.9-3.6V 宽电源范围内稳定⼯作.该芯⽚应⽤领域：⽆线⿏标、键盘、⽆线遥控、体感设备、有源RFID、NFC、智能电⽹、智能家居、⽆线⾳频、⽆线数据传输模块、低功耗⾃组⽹⽆线传感⽹节点、电动车防盗、闪光灯设备（引闪器）-------------------------------------------------------------------------------------------------------AT2401C 是⼀款⾯向 Zigbee，⽆线传感⽹络以及其他 2.4GHz 频段⽆线系统的全集成射频功能的射频前端单芯⽚。

2483芯片工作原理
2483芯片是一种无线通信芯片，常用于无线鼠标、无线键盘和其他无线设备中。

它采用2.4GHz频段进行通信，具有较高的抗干扰能力和稳定的传输性能。

该芯片主要由射频收发模块、基带处理模块和微控制器构成。

首先，让我们来看看射频收发模块的工作原理。

该模块负责接收和发送无线信号，通过天线进行信号的收发。

在接收模式下，射频收发模块接收来自外部设备的无线信号，并将其转换成数字信号传递给基带处理模块。

在发送模式下，基带处理模块产生的数字信号经过射频收发模块转换成无线信号发送出去。

其次，基带处理模块的工作原理也很重要。

它负责对接收到的信号进行解调和解码，并将其转换成数字信号交给微控制器进行处理。

在发送模式下，基带处理模块接收来自微控制器的数字信号，进行调制和编码后，再交给射频收发模块进行发送。

最后，微控制器起着控制和协调各个模块工作的作用。

它负责处理无线通信协议、数据处理、错误校正等功能，并与外部设备进行数据交换和控制。

总的来说，2483芯片的工作原理主要涉及射频信号的收发、数字信号的处理和微控制器的控制。

通过这些模块的协作，实现了稳定可靠的无线通信功能。

希望这个回答能够满足你的需求。

CISCO路由器各个型号的详细介绍CISCO是全球知名的网络解决方案供应商之一，其路由器产品被广泛应用于各种企业和组织的网络架构中。

本文将详细介绍CISCO路由器的各个型号，包括其特点、适用场景等。

一、CISCO ISR 4000系列路由器CISCO ISR 4000系列路由器是CISCO路由器产品中较为常见的型号之一。

这一系列路由器具备高性能的处理能力和多功能的特点，能够满足中大型企业网络的需求。

其特点包括：1. 高性能处理器：这一系列路由器配备了高性能多核处理器，能够提供卓越的数据处理和转发能力，适用于大规模数据传输和复杂网络环境。

2. 高密度接口：ISR 4000系列路由器支持多种常见的网络接口类型，包括千兆以太网接口、光纤接口等，方便与不同设备进行连接和通信。

3. 统一管理：路由器内置了CISCO的集中式管理平台，可实现对多个路由器的统一管理和监控，简化了网络管理的复杂性。

4. 安全性能：ISR 4000系列路由器支持CISCO的网络安全技术，包括ACL（访问控制列表）、VPN（虚拟专用网络）等，能够有效保护企业网络的安全。

二、CISCO ASR 1000系列路由器CISCO ASR 1000系列路由器是专为高性能网络设计的路由器产品，适用于大型企业、运营商等高要求的网络环境。

其特点包括：1. 高可靠性：ASR 1000系列路由器采用了高可靠性设计，具备冗余电源、冗余接口等功能，提供稳定可靠的网络连接。

2. 高密度接口：路由器支持大量的接口类型，包括千兆以太网接口、10千兆以太网接口、光纤接口等，适应高密度的数据传输需求。

3. 智能流量管理：ASR 1000系列路由器配备了智能流量管理功能，能够在网络拥堵情况下进行智能分流和调度，提高网络的利用率和性能。

4. 高度可扩展：路由器支持模块化设计，可以根据需要添加不同类型的扩展模块，以满足不同场景下的需求。

三、CISCO Catalyst系列路由器CISCO Catalyst系列路由器主要面向企业和组织内部网络环境，其特点包括：1. 高性能交换：这一系列路由器采用快速交换技术，能够在企业内部网络中快速转发数据包，提供高性能的数据交换能力。

Data SheetCisco SLM2024 24-Port Gigabit Smart SwitchCisco Small Business Smart SwitchesCost-Effective, Secure Switching with Simplified Management for Your Small Business Highlights●Easy-to-use web browser interface makes installation quick and effortless●High-speed conectivity supports bandwidth-intensive applications●Security down to the switch port level keeps unauthorized users off the network●Basic QoS helps ensure a consistent network experience and supports networkedapplications, including voice, video, and data storageFigure 1. Cisco SLM2024 24-Port Gigabit Smart Switch with 2 SFPsProduct OverviewCisco® Small Business Smart Switches are cost-effective switching solutions that are ideal for small businesses, the network edge, or workgroups within larger organizations. These easy-to-install, high-speed switches offer many of the same quality-of-service (QoS) and security features found in more expensive full Layer 2 managed switches, but without their complexity. The Cisco SLM2024 24-Port Gigabit Smart Switch (Figure 1) offers twenty-four 10/100/1000 Gigabit over copper ports with two shared copper or optical Small Form-Factor Pluggable (SFP) uplink interfaces for connecting the switch to the core network. The simplified user interface is an intuitive management tool, enabling you to quickly use the comprehensive feature set of the switch, for a better-optimized network.The Cisco SLM2024 includes numerous QoS features to help ensure that traffic is prioritized properly to deliver the best possible user experience for real-time applications such as voice and video or bandwidth-intensive graphic/video file uploads or downloads. With its Internet Group Management Protocol (IGMP) snooping feature, the Cisco SLM2024 limits IP multicast traffic (such as real-time presentations, videoconferences, and online gaming) to only the ports that have requested it, enabling the rest of the network to operate at peak efficiency. Additional QoS capabilities, such as IEEE 802.1p priority tagging, differentiated services code point (DSCP), and four hardware queues, also maintain quality for real-time applications such as voice and video. Network traffic can be optimized with the switch’s 802.1Q VLAN support, which enables you toquickly segregate network traffic by department or workgroup. VLANs also provide an additional layer of security by keeping sensitive data separated from other workgroups on the network.Network security is an absolute requirement for any business, and preventing unauthorized access to the company network is critical. The Cisco SLM2024 secures the network through 802.1X port authentication, which prompts end users to provide their username and password before they are permitted to pass data. User access can also be controlled through the Cisco SLM2024’s MAC-based filtering capability, which allows network access only to those devices or workstations that have been authorized as identified by their MAC address. The many-to-one or one-to-one port mirroring feature of the Cisco SLM2024 enables you to monitor the type of traffic being transmitted on the network.The Cisco SLM2024 includes features for quickly expanding and growing your network. To substantially increase network throughput speeds, especially useful for companies whose employees are routinely backing up their hard drives to a company server or storage platform, the Cisco SLM2024 supports link aggregation, which allows multiple high-bandwidth trunks between switches to be set up. Link aggregation also provides a level of availability and redundancy, as traffic will continue to flow even if one of the network links break. The Cisco SLM2024’s Spanning Tree Protocol (STP) support and storm control features help to control planned or inadvertent cable loops when switches are connected to one another. These loops can cause broadcast or multicast storms in the network, severely limiting its performance. With these features, you can confidently build a mesh of switches and quickly expand your network to support your growing workforce.Features●Twenty-four 10/100/1000 switched RJ-45 ports for up to 2000 Mbps of throughput per port● 2 mini Gigabit Interface Converter (mini-GBIC) slots for fiber and copper Gigabit Ethernetexpansion●48-Gbps nonblocking, store-and-forward switching mechanism●Simplified QoS management enabled by advanced queuing techniques using 802.1p,IPv4/v6 Differentiated Services (DiffServ)/DSCP traffic prioritization specifications●Configuration and monitoring from a standard web browser with a simplified managementinterface●802.1Q-based VLANs enable segmentation of networks for improved performance andsecurity●Port-level security via 802.1X authentication and MAC-based filtering●Increased bandwidth (up to 8x) and added link redundancy with Link Aggregation ControlProtocol (LACP)●Multicast and broadcast storm control●Port mirroring for noninvasive monitoring of switch traffic●Jumbo frame support (9 KB)●Fully rack-mountable using the included rack-mounting hardwareSpecificationsTable 1 gives the specifications, package contents, and minimum requirements for the Cisco SLM2024 24-Port Gigabit Smart Switch.Table 1. Cisco SLM2024 24-Port Gigabit Smart Switch with 2 SFPsSpecificationsPorts ●24 RJ-45 connectors for 10BASE-T/100BASE-TX/1000BASE-T, including 2 comboports with mini GBIC/SFP slots●Auto medium dependent interface (MDI) and MDI crossover (MDI-X)●Auto negotiate/manual settingButtons ResetCabling type Unshielded twisted pair (UTP) Category 5e or better for 1000BASE-TLEDs System, Gigabit Link/Act, and SpeedPerformanceSwitching capacity 48-Gbps nonblockingForwarding rate 35.71 Mpps wire-speed performanceLayer 2MAC table size 8000Number of VLANs 128 active VLANs (4096 range)VLAN ●Port-based and 802.1Q tag-based VLANs●Management VLANHead-of-line (HOL) blocking HOL blocking preventionManagementWeb user interface Built-in web UI for easy browser-based configuration (HTTP)Firmware upgrade Web browser upgrade (HTTP) and Trivial File Transfer Protocol (TFTP)Port mirroring Traffic on a port can be mirrored to another port for analysis with a network analyzer Other management ●Port mirroring●DHCP/BOOTP client●System log●Configuration upload and backup via HTTP or TFTPSecurity●802.1X-RADIUS authentication. MD5 encryption●Port security-MAC-based filtering●Management access controlAvailabilityLink aggregation ●Link aggregation using IEEE 802.3ad LACP●Up to 4 groups with up to 8 ports per groupStorm control Broadcast and multicastSpanning Tree IEEE 802.1D Spanning Tree and PortFastIGMP snooping IGMP (v1/v2) snooping provides for fast client joins and leaves of multicast streams andlimits bandwidth-intensive video traffic to only the requestors. Supports 32 multicast groups. QoSPriority levels 4 hardware queuesScheduling Priority queuing and weighted round-robin (WRR)Class of service ●Port based●802.1p VLAN priority based●IPv4/v6 IP DSCP basedStandards●802.3 10BASE-T Ethernet●802.3u 100BASE-TX Fast Ethernet●802.3ab 1000BASE-T Gigabit Ethernet ●802.3z Gigabit Ethernet●802.3x flow control●802.3ad LACP●802.1D Spanning Tree Protoocl●802.1Q/p VLAN●802.1X port access authentication EnvironmentalDimensions W x H x D 17.32 x 1.70 x 10.12 in. (440 x 43.2 x 257 mm)Weight 6.83 lb (3.1 kg)Power Internal power, 100-240VCertification FCC Part 15 Class A, CE Class A, UL, cUL, CE mark, CBOperating temperature 32° to 122°F (0° to 50°C)Storage temperature 32° to 158°F (0° to 70°C)Operating humidity 10 to 90%, noncondensingStorage humidity 10 to 90%, noncondensingPackage Contents●Cisco SLM2024 24-Port Gigabit Smart Switch with 2 combo SFPs●AC power cord●Rack-mounting kits with bracket and hardware●One CD with user guide in PDF format●online registration cardMinimum Requirements●Web-based utility: Microsoft Internet Explorer (version 5.5 or later) web browser●Category 5 Ethernet network cableProduct Warranty5-year limited hardware warranty with return to factory replacement and 90-day limited software warrantyCisco Limited Warranty for Cisco Small Business Series ProductsThis Cisco Small Business product comes with a 5-year limited hardware warranty with return to factory replacement and a 90-day limited software warranty. In addition, Cisco offers software application updates for bug fixes and telephone technical support at no charge for the first 12 months following the date of purchase. To download software updates, go to:/go/smallbiz.Product warranty terms and other information applicable to Cisco products are available at /go/warranty.For More InformationFor more information on Cisco Small Business products and solutions, visit:/smallbusiness.Printed in USA C78-500597-00 11/08。

教你识别思科交换机型号在网络界，美国思科公司（Cisco System Inc.）可谓无人不知，无人不晓。

凭借它的IOS（Internet Operating System），Cisco公司在多协议路由器市场上处于绝对领先的地位。

目前，在Internet 中，有近80%的路由器来自Cisco。

其实，除了路由器这个主打产品之外，Cisco还有全线的网络设备，包括集线器、交换机、访问服务器、软硬防火墙、网络管理软件等等。

Cisco非常注意对新技术的跟踪，通过一系列的合作与兼并，Cisco成功地介入了宽带接入、无线通讯等新兴市场。

本文主要介绍Cisco的交换机产品线和主要产品。

一、概述Cisco的交换机产品以“Catalyst”为商标，包含1900、2800、2900、3500、4000、5000、5500、6000、8500等十多个系列。

总的来说，这些交换机可以分为两类：一类是固定配置交换机，包括3500及以下的大部分型号，比如1924是24口10M以太交换机，带两个100M上行端口。

除了有限的软件升级之外，这些交换机不能扩展；另一类是模块化交换机，主要指4000及以上的机型，网络设计者可以根据网络需求，选择不同数目和型号的接口板、电源模块及相应的软件。

选择设备时，许多人对长长的产品型号十分头疼。

其实，Cisco对产品的命名有一定之规。

就Catalyst交换机来说，产品命名的格式如下：Catalyst NNXX [-C] [-M] [-A/-EN]其中，NN是交换机的系列号，XX对于固定配置的交换机来说是端口数，对于模块化交换机来说是插槽数，有-C标志表明带光纤接口，-M表示模块化，-A和-EN分别是指交换机软件是标准板或企业版。

二、产品介绍目前，网络集成项目中常见的Cisco交换机有以下几个系列，1900/2900系列、3500系列、6500系列。

他们分别使用在网络的低端、中端和高端。

下面分别介绍一下这几个系列的产品：1、低端产品先说一下低端的产品，1900和2900是低端产品的典型。

思科交换机产品介绍关于思科交换机产品介绍思科公司是全球领先的网络解决方案供应商。

Cisco的名字取自San Francisco(旧金山)，那里有座闻名于世界的金门大桥。

以下是店铺收集的思科交换机产品介绍，欢迎大家参考!一、Cisco Nexus 7000系列交换机Cisco Nexus 7000系列交换机是一个模块化数据中心级产品系列，适用于高度可扩展的万兆以太网网络，其交换矩阵架构的速度能扩展至15Tbps以上。

它的设计旨在满足大多数关键任务数据中心的要求，提供永续的系统运营和无所不在的虚拟化服务。

Cisco Nexus 7000系列建立在一个成熟的操作系统上，借助增强特性提供了实时系统升级，以及出色的可管理性和可维护性。

它的创新设计专门用于支持端到端数据中心连接，将IP、存储和IPC网络整合到单一以太网交换矩阵之上。

作为第一款下一代交换机平台，Cisco Nexus 7000系列10插槽机箱(图1)提供了集成永续性，以及专为数据中心可用性、可靠性、可扩展性和易管理性而优化的特性。

N7K-C7010 10 Slot Chassis, No Power Supplies, Fans IncludedN7K-SUP1 Nexus 7000 - Supervisor, Includes External 8GB Log FlashN7K-C7010-FAB-1 Nexus 7000 - 10 Slot Chassis - 46Gbps/Slot Fabric ModuleN7K-AC-6.0KW Nexus 7000 - 6.0KW AC Power Supply ModuleN7K-C7018 18 Slot Chassis, No Power Supplies, Fans IncludedN7K-C7018-FAB-1 Nexus 7000 - 18 Slot Chassis - 46Gbps/Slot Fabric ModuleN7K-AC-7.5KW-INT Nexus 7000 - 7.5KW AC Power Supply Module International (cabN7K-AC-7.5KW-US Nexus 7000 - 7.5KW AC Power Supply Module US (cable includedN7K-C7010-BUN Nexus 7010 Bundle (Chassis,SUP1,(3)FAB1,(2)AC-6KW PSU)N7K-C7010-BUN-R Nexus 7010 Bundle (Chassis,(2)SUP1,(3)FAB1,(3)AC-6KW PSU)N7K-DC-6.0KW Nexus 7000 - 6.0KW DC Power Supply Module (Cables Included)N7K-DC-PIU Nexus 7000 - DC Power Interface UnitN7K-M132XP-12 Nexus 7000 - 32 Port 10GbE, 80G Fabric (req. SFP+)N7K-M148GT-11 Nexus 7000 - 48 Port 10/100/1000, RJ-45N7K-M148GS-11 Nexus 7000 - 48 Port 1G, SFPN7K-M148GS-11L Nexus 7000 - 48 Port GE Module with XL Option (req. SFP)N7K-M108X2-12L Nexus 7000 - 8 Port 10GbE with XL option (req. X2)N7K-C7010-FD-MB Nexus 7010 Front Door KitN7K-CPF-2GB Nexus Compact Flash Memory 2GB (Expansion Flash - Slot 0)N7K-C7010-AFLT Nexus 7010 Air FilterN7K-C7018-FD-MB Nexus 7018 Front Door Kit二、Cisco Nexus 5000系列交换机Cisco Nexus 5000系列是Cisco Nexus系列数据中心级交换机的一个组成部分，它提供了一个创新架构，通过实施基于标准的高性能以太网统一阵列，简化了数据中心转型。

产品简介具有SFP功能的Cisco SLM248G 48端口10/100＋2端口千兆智能交换机思科精睿（Cisco Small Business）系列智能交换机适用于成长中企业、具有简单管理功能的高成本效益、安全可靠的交换机主要特色•可连接到多达48个网络设备――PC、打印机、无线接入点和服务器等――便于在网络上共享和传输文件与视频•安全性延伸至交换机端口层，防止未经授权的用户访问网络•基本的QoS功能可帮助确保一致的网络体验，支持包括语音、视频和数据存储在内的网络应用•简单的、基于Web的管理方式可以实现轻松的安装和配置••图1 具有SFP功能的Cisco SLM248G 48端口10/100＋2端口千兆智能交换机产品概述Cisco®中小型企业智能交换机是高成本效益交换解决方案，非常适合用于中小型企业、网络边缘或大型企业的工作组。

这些易于安装的高速交换机具有许多昂贵的二层全网管式交换机常见的相同服务质量 (QoS) 和安全功能，却没有这些交换机复杂。

Cisco SLM248G 48端口10/100 + 2 端口千兆智能交换机具有48个 10/100 铜缆端口，并且带有 2个共享千兆铜缆或光纤小型封装热插拨 (SFP) 上行链路接口，可用于将交换机连接到核心网络。

简单的用户界面是一个直观的管理工具，它使您能够快速利用交换机的一系列综合功能，形成更加优化的网络。

Cisco SLM248G 包括许多 QoS 功能，可以确保恰当地区分流量的优先顺序，给语音和视频、带宽密集型图片/视频文件上载或下载等实时应用带来尽可能最佳的用户体验。

借助IGMP 监听功能，Cisco SLM248G 可以将 IP 多播流量（例如实时演示、视频会议和在线游戏）仅限于请求此类流量的端口，使其余的网络能够以最高效率正常工作。

IEEE 802.1p 优先级标记、差分服务代码点 (DSCP) 以及 4个硬件队列等其它 QoS 功能，还能够保持语音和视频等实时应用的质量。

Data SheetCisco SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch: WebViewCisco Small Business Managed SwitchesSecure, Reliable, Intelligent Switching for Your Growing Small BusinessHighlights●Connects up to 48 network devices - PCs, printers, and servers - to share and transferfiles and videos across your network●Strong security protects network traffic to keep unauthorized users off the network●Intelligent QoS helps ensure a consistent network experience and supports networkedapplications including voice, video, and data storage●Simplified, web-based management for easy installation and configurationFigure 1. Cisco SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch: WebViewProduct OverviewGrowing businesses require cost-effective networking solutions that can scale to meet ever-changing business needs. The Cisco® SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch (Figure 1) brings increased intelligence and security to the network infrastructure. The forty-eight 10/100 Mbps ports enable you to consolidate your network from several smaller switches or hubs to a single managed switch. The optional Gigabit optical interfaces allow you to expand the network as your business grows.Network security is a top priority in any size business. Most business data networks, large and small, are unsecured. Unauthorized access to the network and mission-critical data is a constant concern. The Cisco SRW248G4 helps secure the network through 802.1X port authentication and MAC-based filtering. The 802.1X standard requires clients to authenticate themselves before the port will pass data for them.Businesses are recognizing the benefits of voice over IP (VoIP) and are quickly migrating their voice services to IP-based platforms, requiring their local area networks to support both voice and data applications. In unmanaged IP networks, bursty data sessions can disrupt voice packet delivery, causing poor voice quality. With the enhanced quality of service (QoS) and traffic-management features in the Cisco SRW248G4, voice data can be prioritized, helping ensure clear and reliable voice communications.Enabling the advanced features of the Cisco SRW248G4 further secures the integrity of your network. The WebView interface provides an intuitive, highly secure management interface, helping you to better utilize the comprehensive feature set of the switch for a better-optimized, more secure network.Features●Forty-eight 10/100 switched RJ-45 ports with automatic medium dependent interface(MDI) and MDI crossover (MDI-X) cable detection●Four 10/100/1000 switched RJ-45 ports with auto MDI/MDI-X cable detection●Two shared mini Gigabit Interface Converter (mini-GBIC) ports for optical or copperinterconnection●Nonblocking, store-and-forward switching mechanism●Simplified QoS management enabled by advanced queuing techniques using 802.1p,Differentiated Services (DiffServ), or type of service (ToS) traffic prioritizationspecifications●Configuration and monitoring from a standard web browser with WebView●Highly secure remote management of the switch via Secure Shell (SSH) and SSLsecure channel network protocols●802.1Q-based VLANs enable segmentation of networks for improved performance andsecurity●Private VLAN Edge (PVE) for simplified network isolation of guest connections orautonomous networks●Automatic configuration of VLANs across multiple switches through Generic VLANRegistration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP)●Automatic port configuration through auto MDI/MDI-X●802.1ab (Link Layer Discovery Protocol [LLDP]) and Universal Plug and Play (UPnP)support●User/network port-level security via 802.1X authentication and MAC-based filtering●Increased bandwidth (up to 8x) and added link redundancy with Link AggregationControl Protocol (LACP)●Enhanced rate-limiting capabilities provide control, including back pressure to controlthe rate at which data can flow into and out of a port●Multicasting, broadcasting, and flooding control●Port mirroring for noninvasive monitoring of switch traffic●Mini jumbo frame support●Simple Network Management Protocol (SNMP) versions 1, 2c, and 3●Fully rack mountable using the included rack-mounting hardwareSpecificationsTable 1 contains the specifications, package contents, and minimum requirements for the Cisco SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch.Table 1. Specifications for the Cisco SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch: WebView SpecificationsPorts ●48 RJ-45 connectors for 10BASE-T and 100BASE-TX●4 RJ-45 connectors for 10BASE-T/100BASE-TX/1000BASE-T with 2 shared SmallForm-Factor Pluggable (SFP) slots●Auto MDI/MDI-X●Auto negotiate/manual settingCabling type ●Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX●UTP Category 5 Ethernet or better for 1000BASE-TLEDs Power, Link/Act, SpeedPerformanceSwitching capacity 17.6 Gbps, nonblockingMAC table size 8000Number of VLANs 256 - static and dynamicManagementWeb user interface Built-in web user interface for easy browser-based configuration (HTTP/HTTPS)SNMP SNMP versions 1, 2, and 3 with support for trapsSNMP MIBs ●RFC1213 MIB-2●RFC2863 interface MIB●RFC2665 Ether-like MIB●RFC1493 bridge MIB●RFC2674 extended bridge MIB (P-bridge, Q-bridge)●RFC2819 RMON MIB (groups 1, 2, 3, and 9 only)●RFC 2618 RADIUS client MIBRemote Monitoring (RMON) Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, andevents) for enhanced traffic management, monitoring, and analysisFirmware upgrade ●Web browser upgrade (HTTP)●Trivial File Transfer Protocol (TFTP) upgradePort mirroring Traffic on a port can be mirrored to another port for analysis with a network analyzer orRMON probeOther management ●RFC854 Telnet (menu-driven configuration)●SSH and Telnet management●Telnet client●SSL security for web user interface●Switch audit log●Dynamic Host Configuration Protocol (DHCP) client●BOOTP●Simple Network Time Protocol (SNTP)●Xmodem upgrade●Cable diagnostics●Ping●Traceroute●SyslogSecurityIEEE 802.1X 802.1X - RADIUS authentication; MD5 encryptionAccess control Filtering: MAC-basedAvailabilityLink aggregation ●Link aggregation using IEEE 802.3ad LACP●Up to 8 ports in up to 8 trunksStorm control Broadcast, multicast, and unknown unicastSpanning Tree IEEE 802.1d Spanning Tree, IEEE 802.1s Multiple Spanning Tree, IEEE 802.1w RapidSpanning Tree, Fast LinkoverInternet Group Management Protocol (IGMP) snooping IGMP (versions 1 and 2) snooping provides for fast client joins and leaves of multicast streams and limits bandwidth-intensive video traffic to only the requestorsQoSPriority levels 4 hardware queuesScheduling Priority queuing and weighted round-robin (WRR) Class of service (CoS) ●Port based●802.1p VLAN priority based●IP ToS/DSCP based●IPv4 and IPv6 traffic class–based CoSRate limiting Ingress policer, egress shaperLayer 2VLAN ●Port-based and 802.1Q-based VLANs●PVE●Management VLANHead-of-line (HOL) blocking HOL blocking preventionMini jumbo frame Supports frames up to 1600 bytesDynamic VLAN GVRP - dynamic VLAN registrationStandards ●802.3i 10BASE-T Ethernet●802.3u 100BASE-TX Fast Ethernet●802.3ab 1000BASE-T Gigabit Ethernet●802.3z Gigabit Ethernet●802.3x flow controlEnvironmentalDimensions W x H x D 16.93 x 1.75 x 13.78 in. (430 x 45 x 350 mm)Unit weight 8.60 lb (3.9 kg)Power Internal switching powerCertification FCC Part 15 Class A, CE Class A, UL, cUL, CE mark, CB Operating temperature 32º to 104ºF (0º to 40ºC)Storage temperature -4º to 158ºF (-20º to 70ºC)Operating humidity 10% to 90%Storage humidity 10% to 95%Package Contents●Cisco SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch●AC power cord●Rack-mounting kit with brackets and hardware●CD with user guide in PDF format●Registration card●Console cableMinimum Requirements●Web-based utility: Microsoft Internet Explorer (version 5.5 or later)●Category 5 Ethernet network cables●Operating system: Windows 2000, XP, or laterProduct Warranty5-year limited hardware warranty with return to factory replacement and 90-day limited software warrantyCisco Limited Warranty for Cisco Small Business Series ProductsThis Cisco Small Business product comes with a 5-year limited hardware warranty with return tofactory replacement and a 90-day limited software warranty. In addition, Cisco offers softwareapplication updates for bug fixes and telephone technical support at no charge for the first 12months following the date of purchase. To download software updates, go to:/go/smallbiz.Product warranty terms and other information applicable to Cisco products are available at/go/warranty.For More InformationFor more information on Cisco Small Business products and solutions, visit:/smallbusiness.Printed in USA C78-502283-00 11/08。