Chapter 7 Preparing the Campus Infrastructure for Advanced Services 419

　　Planning for Wireless, Voice, and Video Application in the Campus Network 420

　　The Purpose of Wireless Network Implementations in the Campus Network 420

　　The Purpose of Voice in the Campus Network 421

　　The Purpose of Video Deployments in the Campus Network 423

　　Planning for the Campus Network to Support Wireless Technologies 423

　　Introduction to Wireless LANs (WLAN) 423

　　Cisco WLAN Solutions as Applied to Campus Networks 426

　　Comparing and Contrasting WLANs and LANs 428

　　Standalone Versus Controller-Based Approaches to WLAN

　　Deployments in the Campus Network 429

　　Controller-Based WLAN Solution 430

　　Traffic Handling in Controller-Based Solutions 433

　　Traffic Flow in a Controller-Based Solution 434

　　Hybrid Remote Edge Access Points (HREAP) 435

　　Review of Standalone and Controller-Based WLAN Solutions 436

　　Gathering Requirements for Planning a Wireless Deployment 436

　　Planning for the Campus Network to Support Voice 437

　　Introduction to Unified Communications 438

　　Campus Network Design Requirements for Deploying VoIP 439

　　Planning for the Campus Network to Support Video 440

　　Voice and Video Traffic 441

　　Video Traffic Flow in the Campus Network 442

　　Design Requirements for Voice, Data, and Video in the Campus Network 444

　　Understanding QoS 444

　　QoS Service Models 446

　　AutoQoS 447

　　Traffic Classification and Marking 448

　　DSCP, ToS, and CoS 448

　　Classification 449

　　Trust Boundaries and Configurations 450

　　Marking 451

　　Traffic Shaping and Policing 451

　　Policing 452

　　Congestion Management 453

　　FIFO Queuing 453