Network administrator can see, in GUI presentation, what application are being used on the wireless network and where and by whom the bandwidth being used. With AVC, applications can be viewed, managed, and controlled on the WLAN or per user. Release 8.1 introduces support for Application Visibility and Control (AVC) for locally switched WLANs on FlexConnect APs on 5508, 5500 series, 8500 series, 7500, WiSM2, and vWLC. Trending of application usage helps the network administrator to plan for network infrastructure upgrade, improve quality of experience by protecting key applications from bandwidth-hungry applications when there is congestion on the network, capability to prioritize or de-prioritize, and drop certain application traffic.ĪVC is supported on the 5520, 8540, 2500, 5508, 7500, 8500, and WiSM2 controllers on Local and FlexConnect modes (for WLANs configured for central switching only) since release 7.4. The key use cases for NBAR AVC are capacity planning, network usage base lining, and better understanding of the applications that are consuming bandwidth. Ability to Apply Mark using QoS, Drop and Rate-limit applications.NBAR2 recognizes application and passes this information to other features such as Quality of Service (QoS) and Access Control List (ACL), which can take action based on this classification. NBAR2 is based on NBAR and has extra requirements such as having a common flow table for all IOS features that use NBAR. NBAR is a deep-packet inspection technology available on Cisco IOS based platforms, which supports stateful L4 – L7 classification.
Next-generation Deep Packet Inspection (DPI) technology, called as Network Based Application Recognition (NBAR2), allows for identification and classification of applications. This gives a complete visibility of applications in the network and allows the administrator to take some action on the application.ĪVC has the following functionality and components: The support of AVC embedded within the FlexConnect AP extends as this is an end-to-end solution. AVC is already supported on various ASR and WLC platforms. Shaping network traffic to smooth the traffic flowĪVC provides application-aware control on a wireless network and enhances manageability and productivity. Managing and minimizing network congestion. Controlling jitter and latency (required by real-time traffic). Supporting dedicated bandwidth for critical users and applications. QoS provides enhanced and reliable network service by doing the following: With QoS, bandwidth can be managed more efficiently across WLANs, LANs and WANs. Manage time-sensitive multimedia and audio application traffic to ensure that this traffic receives higher priority, greater bandwidth, and less delay than best-effort data traffic. Enable network resources to be shared more efficiently and expedite the handling of mission-critical applications. Allow network managers to establish service-level agreements (SLAs) with network users. Provide building blocks for business multimedia and audio applications used in campus, WAN, and service provider networks. QoS technologies provide the following benefits: QoS refers to the capability of a network to provide differentiated service to selected network traffic over various network technologies. This chapter is intended for those who are tasked with designing and implementing enterprise WLAN deployments using Cisco Unified Wireless Network technology. This chapter describes WLAN QoS and AVC in general, but does not provide in-depth coverage on topics such as security, segmentation, and voice over WLAN (VoWLAN), although these topics have a QoS component. This chapter describes quality of service (QoS) and Application Visibility and Control (AVC) in the context of WLAN implementations. Application Visibility and Control for FlexConnect. 
AVC Operation with Anchor/Foreign Controller Setup.Configuring QOS Maps on Cisco AireOS Release 8.1 MR1.Configuring QoS Mapping by Controller administrator.Traffic Shaping, Over the Air QoS, and WMM Clients.
Deploying QoS Features on CAPWAP-based APs.Advanced QoS Features for WLAN Infrastructure.Unscheduled-Automatic Power-save Delivery.802.11 Distributed Coordination Function.
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