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1、 2008 Cisco Systems, Inc. All rights reserved.Cisco Public1LWAPP无线架构介绍 原理和部署Xiaogang W2 2008 Cisco Systems, Inc. All rights reserved.Cisco Public无线网络架构的发展 第一代和第二代无线接入点 作为802.1q网桥，将无线客 户端的流量转发到本地局域 网上 第三代无线网络基于控 制器的方案，由控制器来统 一转发客户端流量1st/2nd Generation3rd Generation3 2008 Cisco Systems, Inc. All right
2、s reserved.Cisco Public统一无线网络提供更多服务安全访客语音定位Guest networks for customers, partners and auditorsVendor replenishment networksPublic access networksAutomatic, 24 x 7 security and compliance monitoring for breaches via wireless mediumNetwork access control based on user locationAsset managementLocation-
3、based content distributionStreamlined workflow using historical location dataReal-time mobile voice communicationsImproved collaboration via mobile unified communicationsFaster customer service responsePervasive Wireless Network4 2008 Cisco Systems, Inc. All rights reserved.Cisco PublicAgenda 统一无线局域
4、网架构概述 轻量级无线接入点协议介绍 Lightweight access point protocol (LWAPP) 思科统一无线架构中的移动漫游 AP和控制器的网络连接 统一无线局域网架构中的高可用性5 2008 Cisco Systems, Inc. All rights reserved.Cisco Public集中式无线局域网架构 概览 Processing split between APs and controllers802.11 functionality shared Central managementAP is essentially a remote RF inte
5、rface Based on LWAPP protocol APs hold no security credentials APs unusable without a controllerJust expensive paperweights! Data traffic can be bridged locally or at controllerCisco WLAN ControllerLWAPPLWAPP6 2008 Cisco Systems, Inc. All rights reserved.Cisco Public集中式无线局域网架构 AP/Controller: 任务分工Con
6、troller 802.11 MAC Mgmt (re)association requests 集成天线 802.3af 以太网供电 适合部署在办公室或者类似场合Cisco Aironet 1300 系列 室外无线线接入点/网桥桥 企业级业级室外无线线接入点/网桥桥； 防水防尘设计尘设计 802.11g; 集成天线线和外接天线线2种选项选项 适合部署在园区范围内的无线接入和无线桥接室内无线接入点加固的室内无线 接入点室外无线接入点/ 网桥Cisco Aironet 1240AG系列: 企业级无线接入点 802.11a/b/g; RP-TNC外接天线接口 802.3af 以太网供电 适合部署在
7、厂房、仓库等环境比较复杂的地方Cisco Aironet 1250系列: 业内第一款802.11n draft2.0产品！(WFA测试平台） 模块化设计; RP-TNC外接天线接口 802.3at 以太网供电 * 适合部署在厂房、仓库等环境比较复杂的地方* 目前的802.3af只能支持一个射频模块，如果需要支持2个，要802.3at（目前未标准化）支持33 2008 Cisco Systems, Inc. All rights reserved.Cisco Public PortPhysical connection to a neighbor switch/router InterfaceL
8、ogical connection mapping to a VLAN on the neighbor switch/routerManagement interfaceAP Manager interface(s)Dynamic interface(s)Virtual interfaceService interface WLANEntity that maps an SSID to an interface at the controller, along with security, QoS, radio policies, and other wireless networking p
9、arameters3个重要的概念:了解无线控制器 作为网络设备的无线控制器34 2008 Cisco Systems, Inc. All rights reserved.Cisco PublicWelcome to the Cisco Wizard Configuration Tool Use the - character to backup System Name Cisco_44:36:c3: Enter Administrative User Name (24 characters max): admin Enter Administrative Password (24 charac
10、ters max): adminService Interface IP Address Configuration noneDHCP: Enable Link Aggregation (LAG) yesNO:no Enter Port number : 1 Management Interface IP Address: 10.10.80.3 Management Interface Netmask: 255.255.255.0 Management Interface Default Router: 10.10.80.1 Management Interface VLAN Identifi
11、er (0 = untagged): 0 Management Interface Port Num 1 to 2: 1 Management Interface DHCP Server IP Address: 10.10.80.1 AP Transport Mode layer2LAYER3: layer3 AP Manager Interface IP Address: 10.10.80.4 AP-Manager is on Management subnet, using same values AP Manager Interface DHCP Server (10.10.80.1):
12、 Virtual Gateway IP Address: 1.1.1.1 Mobility/RF Group Name: mobile-1 Enable Symmetric Mobility Tunneling: No Network Name (SSID): secure-1 Allow Static IP Addresses YESno: Configure a RADIUS Server now? YESno: Enter the RADIUS Servers Address: 10.10.10.12 Enter the RADIUS Servers Port 1812: Enter t
13、he RADIUS Servers Secret: cisco Enter Country Code (enter help for a list of countries) US: Enable 802.11b Network YESno: Enable 802.11a Network YESno: Enable 802.11g Network YESno: Enable Auto-RF YESno: switchport switchport trunk encapsulation dot1q switchport trunk native vlan switchport trunk al
14、lowed vlan switchport mode trunk no shutdown!interface GigabitEthernet switchport Channel-group mode on no shutdownLink Aggregation: 控制器配置和交换机配置 In the WLC(WLC_CLI) config lag enable40 2008 Cisco Systems, Inc. All rights reserved.Cisco Public了解控制器如何连接到网络 Cisco 2x00 系列控制器Note: This illustration repre
15、sents the key concepts onlyTrunk ports can carry multiple VLANsManagement and AP- Manager Interfaces do not have to be untagged and do not have to be on the same VLAN or mapped to the same port41 2008 Cisco Systems, Inc. All rights reserved.Cisco PublicNote: This illustration represents the key conc
16、epts only4404 has 4 Gigabit ports this represents the 4402 which has 2 Gigabit portsTrunk ports can carry multiple VLANsprune all unnecessary VLANsManagement and AP- Manager Interfaces do not have to be untagged and do not have to be on the same VLAN or mapped to the same portAll interfaces can be configured wit
