Tutorial Qos Datos

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Table Of Contents:

QPM - QoS Design & Deployment Template 4
Executive Summary 4
QoS for Networks 4
What is QoS 4
Why QoS Management 5
Metrics and Levels of Scaling 5
NJ Edge 6
MPLS 6
QoS with NJEdge for Video 6
Factors which Degrade Video Conferencing Quality 6
Factors which Degrade Streaming Video Quality 7
QoS with NJEdge for Voice 7Factors which Degrade Voice Quality 7
Packet loss 7
Factors which Degrade Voice Quality 7
Class Of Service Layer 2 8
Type Of Service Layer 3 8
Video Classification for NJEdge 9
Video 9
Video conferencing 9
Streaming video (IP/TV) 9
3rd party video partners 9
Voice Classification for NJEdge 9
Voice 9
VoIP control channels 9
VoIP RTPbearer channels 10
QoS-QPM Scalability 10
IP Telephony Templates 10
Change Control & Verification 10
Deployment Target Options 10
Cross-Database Update 10
Test Environment and Assumptions 11
Network 11
QoS-QPM Deployment Scope of Work 12
QoS Design 12
QoS Deployment 13
QoS User Acceptance Testing 14
QoS -QPM Training & Documentation 14Scenarios 14
Scalable QoS Monitoring Technologies 15
Pricing and Scope 15
Small-Medium Sized Network 15
Definition 15
Scope 15
Estimated Hours required for Completion 16
Large Network 16
Definition 16
Scope 16
Estimated Hours required for Completion 16
Very Large Network 17
Definition 17
Scope 17
Estimated Hours required forCompletion 17

QPM - QoS Design & Deployment Template

Executive Summary

As applications such as voice and video appear on converging networks, the need for Quality of Service (QoS) from nearly every device in the network becomes crucial. As a result, in large networks the provisioning and administration of QoS quickly become daunting and complex tasks.
Cisco Quality of Service PolicyManager (QPM) is designed to provision QoS for voice, video, and data networks and has many useful features to facilitate scaling. A main feature is the set of IP Telephony templates, which embed the Cisco QoS recommendations for voice into predefined policy device-groups. This simplifies an administrator's task to simply assigning the devices and interfaces to the corresponding group and clicking onthe Deploy button. Furthermore, these templates can be tailored to customer requirements. Such modifications are included in the test scenarios detailed in this paper.

Additionally, QPM offers features such as rollback (to quickly undo changes that have been pushed out to network devices) and also device verification (which allows an administrator to determine quickly whether the deployed QoSconfigurations have been tampered with).

There are four levels of scaling are defined:

Small-scale IP Telephony deployments—fewer than 500 IP Phones or 2000 switch ports
Medium-scale IP Telephony deployments—500 to 2500 IP Phones or 2000 to 5000 switch ports
Large-scale IP Telephony deployments—2500 to 10,000 IP Phones or 5000 to 15,000 switch ports
Very-large-scale IP Telephonydeployments—more than 10,000 IP Phones or more than 15,000 switch ports

QoS for Networks

What is QoS

Customer networks exist to service application requirements and end users efficiently. The tremendous growth of the Internet and corporate intranets, the wide
variety of new bandwidth-hungry applications, and convergence of data, voice, and video traffic over consolidated IP infrastructures hashad a major impact on the ability of networks to provide predictable, measurable, and guaranteed services to these applications. Achieving the required Quality of Service (QoS) through the proper management of network delays, bandwidth requirements, and packet loss parameters, while maintaining simplicity, scalability, and manageability of the network is the fundamental solution to running an...