Managing and Troubleshooting VoIP

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Information about Managing and Troubleshooting VoIP

Published on July 28, 2008

Author: digitallibrary

Source: slideshare.net

Description

Managing limited or pilot IP Telephony deployments isn't a big challenge and troubleshooting isn't necessarily an issue. But at scale, management, monitoring and troubleshooting VoIP is a major task. Network managers have to ensure that the network (especially the Wide Area portion) maintains the quality of service required to deliver voice acceptably; and they have to be able to quickly ascertain what's gone wrong when voice quality is sub-par. Understand how to engineer a WAN for VoIP and the elements you need in a network management infrastructure that ensures efficient management and troubleshooting.

Managing and Troubleshooting VoIP Sung Moon Director of Technology Avaya Global Services

Topics • Design and Implementation • Monitoring • Troubleshooting

Decide With Your Service Provider… • What goes in? • How does it get treated? • What comes out?

What Goes In?

What Goes In? VoIP Audio • How will this traffic be classified? • Recommend marking at L3 (IP Header) using DSCP for end to end integrity of marking. – L2 tagging is not preferred because it must be converted to L3 and back to L2 at various points. • Expedited Forwarding PHB (RFC 3246) is the industry standard. • Simply put, mark your audio with DSCP 46, and coordinate w/ your SP.

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