Cisco Cisco Prime Infrastructure 3.0 Weißbuch

 

 

© 2015 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. 

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QoS provides prioritization, shaping, or rate limiting of traffic. High-priority, latency-sensitive traffic can be put into 

the priority queue. QoS can also guarantee minimal bandwidth available to an application or group of applications 

with QoS traffic class. For AVC, QoS class-map statements allow matching on all the new NBAR2-supported 

applications and Layer 7 application fields (such as URL, host, and so on) or protocols, as well as on the NBAR2 

attributes, which can coexist with all other traditional QoS match attributes such as IP, subnet, and DSCP. 

Performance Routing allows network administrators to minimize bandwidth costs, enable intelligent load 

distribution, improve application performance, and improve application availability. Whereas other routing 

mechanisms can provide both load sharing and failure mitigation, Cisco IOS PfR makes real-time routing 

adjustments based on application criteria such as response time, packet loss, jitter, path availability, interface load, 

and circuit cost minimization. 

Use Cases Overview 

With the growing applications, mobility, and number of devices, network administrators are looking to: 

● 

Gain visibility into applications in the network 

● 

Monitor the performance of each application 

● 

Maximize the user experience by controlling the application usage in the network 

By using the Cisco AVC solution, operators could intelligently manage applications and monitor their performance 

to optimize the available bandwidth on the links. 

The AVC solution tracks each user transaction, classifies the application, and exports the transaction information 

using NetFlow or IPFIX. The NetFlow/IPFIX records are consumed and reported to the operator. Using the rich 

records and reports, the network administrator is able to: 

● 

Analyze application usage and improve performance 

● 

Improve the user experience 

● 

Improve operational efficiencies 

● 

Increase overall profit 

Implementing application visibility is simply defining various NetFlow records to collect the following information: