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Cisco Cisco Prime Infrastructure 3.0 White Paper

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© 2015 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. 
Page 27 of 68 
The following is a representation of an MSP network and how the different AVC features can be provisioned in 
such a scenario: 
 
ISR G2 and ASR 1000, in this model too, are the beachhead platforms, and they support the AVC functionality to a 
large extent. A snapshot of the features and their availability on different platforms in this segment (WAN edge, 
Internet edge, and managed service providers) can be found in the following table: 
Platform 
Classification 
Performance Collection 
Control 
800 
NBAR2, Metadata 
FNF, (Performance Agent)PA, PerfMon -> Unified Monitor (Future) 
QoS, PfR 
1900-AX 
NBAR2, Metadata 
FNF, PA, PerfMon -> Unified Monitor (Future) 
QoS, PfR 
2900-AX 
NBAR2, Metadata 
FNF, PA, PerfMon -> Unified Monitor (Future) 
QoS, PfR 
3900-AX 
NBAR2, Metadata 
FNF, PA, PerfMon -> Unified Monitor (Future) 
QoS, PfR 
ASR 1000-ASR
(1)
 
NBAR2, Metadata 
Unified Monitor 
QoS, PfR 
AVC for Traditional Wireless Deployments (Cisco Unified Wireless Network) 
Traditional wireless deployments follow the model of tunneling the traffic from the access point to the Cisco 
Wireless LAN Controller (WLC) residing typically in the distribution layer. There could be a Layer 2/Layer 3 network 
between the access point and the WLC, and the client traffic is tunneled inside Lightweight Access Point Protocol 
(LWAPP) or Control and Provisioning of Wireless Access Points Protocol (CAPWAP) tunnels. This typically means 
there is not much visibility into client traffic in the access network. The traffic is decapsulated at the WLC, and the 
WLC has the responsibility of applying client or SSID-based policies, that is, it acts as the point of policy 
enforcement for wireless traffic. 
In the wireless world, where bandwidth is scarce and is a heavily shared medium, it becomes very important for the 
IT administrator to know how the bandwidth is used, what applications are running, are there any heavy-hitting 
users or applications bringing down the quality of experience for fair users. 
With not much support on the access/campus distribution switches today on application visibility, the traditional 
Cisco Unified Wireless Network model deploys application visibility and export at the WLC where wireless traffic 
terminates (decapsulated).