© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration : Unit 10 Slide 1

Unit 10

Designing and Implementing VoIP Networks- Security and Management Considerations

© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 10 Slide 2

Objectives• Provide security considerations for H.323 networks.

Define the security elements for a VoIP Network. Describe H.323 RAS Authentication. Describe the importance of network access security in a VoIP Network. Define and describe device security.

• Describe how IPSec is used for security. Describe IPSec. Describe the limitation of using IPSecs in voice and data networks.

• Describe how to manage a SLA. Describe the functions f network management. Identify the requirements in a VoIP Service Level Agreement (SLA). Identify the need for collecting management data. Collect, filter and correlate management data. Present and report collected management data.

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Registration security Call Flow

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Authentication for an H.225 Setup Request

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TMN Framework

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VoIP SLA Management Architecture

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VoIP Management Data Sources

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Local Collection Architecture

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SA Agent Architecture

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Netflow Scenario

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Operational Level Fault and Performance Information

Type of Fault and Performance Information

What it includes

General Network and System Faults

Number of critical network alarms

Number of minor network alarms

Number of network alarms per alarm cause code

CPU utilization, memory and disk space use on routers, switches, and gateways

Physical Port Level Total number of active ports per gateway or domain

Total number of disabled ports per gateway or domain

Total number of ports in use per gateway or domain

Average packet received and transmitted by port gateway or domain

Maximum port use per gateway or domain

Minimum port use per gateway or domain

Trunk Level Trunk bandwidth use

Frame synchronization state

Number of errored seconds

Number of failed seconds

Number of code violations

Number of slips

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MRTG Daily Graph of DS-3 Link

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Web Based Report of Bandwidth usage