PDF《Testing》

2011 Report

110411 Product Category: Wireless Controller Vendor Tested: Products Tested: Cisco Flex

7500 Motorola WiNG Aruba VBN Cisco Voice CAC manages bandwidth usages when the wireless link is congested to protect existing voice conversations. Administrators can select Load Based or Bandwidth Based limiting. Figure 1: Cisco Voice CAC Source: Miercom, April

2011 C deployments. For comparison purposes, we also looked at competing solutions from Motorola and Aruba;

specifically Motorola WiNG v5.0 and Aruba Virtual Branch Networking 2.0. As wireless branch deployments are expanded to larger branch applications, several interrelated factors are of concern: continuity of business operations at the branch when WAN connectivity to the datacenter is lost, and deployment cost. Miercom selected several isco engaged Miercom to perform an independent validation of their FlexConnect architecture featuring the Flex

7500 WLAN controller, with a focus on resiliency as it applies to branch office 实验室测试 概述 报告 产品类别: 无线控制器 受测供应商: 受测产品: 思科 Flex

7500 摩托罗拉 WiNG Aruba VBN 重要发现和结论: ? 思科 FlexConnect 架构允许分支办事处在广域网链路中断或无线控 制器不可用时继续工作 ? 基于端口的 802.1x 身份验证可以防止安装欺诈无线接入点 ? CCKM 的快速漫游不需要交换密钥,即使在无线控制器故障的情况 下也允许漫游 ? 提供无线语音动态 呼叫许可控制 (Call Admission Control, CAC) 支持,可以管理有限带宽和延迟问题,并保护现有的语音呼叫 ? FlexConnect 架构支持灵活的身份验证 ― 无线接入点 可以执行对无 线客户端的802.1x 身份验证 科委托 Miercom 对其以 Flex

7500 无线控制器为代表的 FlexConnect 架构进行了一次独立的验证,重点在于其应用于分支办事处时部署的 弹性.为了进行比较,我们还评估了摩托罗拉和 Aruba 的解决方案,具体产品 为摩托罗拉 WiNG v5.0 和Aruba Virtual Branch Networking 2.0. 由于无线在分支的部署已经扩展到了较大的应用规模,因此还会考虑几个相关 因素:到数据中心的广域网连接中断时分支办事处的业务运营连续性以及部署 成本.Miercom 选择了多个指标来评估每个厂商的解决方案在解决这些问题方 思2011 年4月报告

110411 图1:思科语音 CAC 资料来源:Miercom,2011 年4月思科语音 CAC 可在无线链路堵塞时管理带宽的使用,以保护现有的语音通 话.管理员可以选择 基于负载 或 基于带宽 的限制模式. Copyright ?

2011 Miercom Wireless LAN Controllers Page

2 metrics to evaluate how well each solution addressed these concerns. We examined the ability to authenticate new clients when the controller fails, and/or the WAN link is down, as well as how the solution avoids EAP authentication session timeouts over high latency WAN links. Finally, how does each solution deal with the authentication when the Radius server is down? Branch survivability during a WAN failure includes the ability to continue mobile voice calls. Therefore, we looked at the ability to continue roaming voice calls within the branch when the WAN is down. To evaluate the situation where bandwidth may be limited, or there are latency issues, we examined the Call Admission Control (CAC) Support offered by each product. In addition, how does each solution protect against the threat of rogue access points being installed in the branch. In each of these metrics, the Cisco FlexConnect solution clearly demonstrated its advantages in providing Mobile Branch Survivability, and cost containment of wireless branch deployments by eliminating controllers in each branch. Local Authentication/ Distributed Client Authentication Does the Cisco FlexConnect provide no operational downtime when the controller fails or the WAN link is down? A baseline was established by successfully associating laptop and VoIP clients with each vendor'