Cisco DX Series Wireless LAN Deployment Guide The Cisco DX Series is an industry-first, next-generation IP endpoint purpose-built for an employee’s primary place of work, that combines compelling, powerfully integrated, always-on and secure, mission-critical unified communications, collaboration including HD video and cloud-computing experiences, with the interactive ease-of-use, customizable personalization and workflow options that are made available from an enterprise-grade platform designed upon Android™. The Cisco DX Series introduces a new era in employee productivity, spawning new opportunities to collaboration-enable business processes and workflows, to advance business results. The Cisco DX Series meets the evolving needs of business, across industries and geographies, at the campus or at home, for both today and tomorrow. This guide provides information and guidance to help the network administrator deploy the Cisco DX Series into a wireless LAN environment. Revision History Date Comments 05/24/13 10.0(1) Release 08/20/13 10.0(2) Release 04/19/14 10.1(1) Release 09/18/14 10.2(2) Release 06/17/15 10.2(3) Release Cisco DX Series Wireless LAN Deployment Guide 2 Contents Cisco DX Series Overview ........................................................................................................................................................................ 6 Requirements ............................................................................................................................................................................................. 7 Site Survey ............................................................................................................................................................................................... 7 RF Validation .......................................................................................................................................................................................... 7 Call Control ............................................................................................................................................................................................. 8 Protocols ................................................................................................................................................................................................. 9 Access Points ........................................................................................................................................................................................... 9 Antennas ................................................................................................................................................................................................ 11 Models ....................................................................................................................................................................................................... 12 World Mode (802.11d) .......................................................................................................................................................................... 12 Radio Characteristics ............................................................................................................................................................................ 14 Language Support ................................................................................................................................................................................. 15 Bluetooth .................................................................................................................................................................................................. 16 Bluetooth Profiles .................................................................................................................................................................................. 16 Coexistence (802.11b/g/n + Bluetooth) ................................................................................................................................................ 17 Video Calls ............................................................................................................................................................................................... 17 Security ..................................................................................................................................................................................................... 18 Extensible Authentication Protocol - Flexible Authentication via Secure Tunneling (EAP-FAST) ..................................................... 19 Extensible Authentication Protocol - Transport Layer Security (EAP-TLS) ........................................................................................ 20 Protected Extensible Authentication Protocol (PEAP) ......................................................................................................................... 22 Fast Secure Roaming (FSR) .................................................................................................................................................................. 22 EAP and User Database Compatibility ................................................................................................................................................. 23 Power Management ................................................................................................................................................................................. 23 Delivery Traffic Indicator Message (DTIM) ......................................................................................................................................... 23 Quality of Service (QoS) ......................................................................................................................................................................... 24 Configuring QoS in Cisco Unified Communications Manager ............................................................................................................. 25 Configuring QoS Policies for the Network ............................................................................................................................................ 25 Configuring Cisco Switch Ports ........................................................................................................................................................ 25 Configuring Cisco IOS Access Points .............................................................................................................................................. 26 Configuring Switch Ports for Wired IP Phones ................................................................................................................................ 26 Sample Voice Packet Capture ........................................................................................................................................................... 27 Call Admission Control ......................................................................................................................................................................... 27 Roaming .................................................................................................................................................................................................... 27 Multicast ................................................................................................................................................................................................... 29 Designing the Wireless LAN ................................................................................................................................................................... 29 Planning Channel Usage ....................................................................................................................................................................... 29 Cisco DX Series Wireless LAN Deployment Guide 3 5 GHz (802.11a/n) ............................................................................................................................................................................. 29 Using Dynamic Frequency Selection (DFS) on Access Points .................................................................................................... 30 2.4 GHz (802.11b/g/n) ...................................................................................................................................................................... 31 Signal Strength and Coverage ........................................................................................................................................................... 32 Configuring Data Rates ......................................................................................................................................................................... 34 Call Capacity ......................................................................................................................................................................................... 36 Video Calls ........................................................................................................................................................................................ 36 Dynamic Transmit Power Control (DTPC) .........................................................................................................................................