finding the right tool for the job network management: peter charland senior manager, product...

Finding the Right Tool For The Job

Network Management:

Peter CharlandSenior Manager, Product Marketing

[email protected]

2January 23-25, 2008 • Miami Beach Convention Center • Miami, Florida USA www.ITEXPO.com

VoIP Management Needs

• End to end service quality

• Performance and availability

• Troubleshooting• Trend analysis• Inventory• Reporting• Multi-vendor support• Centralized control

Source: Yankee Group 2007


9

8

4

Devices

Software services

Software Systems

Virtual Software Service

Group/Site

VoIP Service

Redundancy group

VoIP Application Service

Application Tasks

6

1. A number of software services are supported by each server

2. An instance of a VoIP system may comprise a number of individual software services

3. VoIP systems are organized into redundancy groups that supply services

4. Virtual software service allows correlation of events at group level

5. Some services are not associated with a single VoIP system

6. Hardware can be directly included in the service

7. Media gateways are related to software services registered with media server

8. Service depends on hardware and software

9. Groups of IP phones are associated to services

1. A number of software services are supported by each server

2. An instance of a VoIP system may comprise a number of individual software services

3. VoIP systems are organized into redundancy groups that supply services

4. Virtual software service allows correlation of events at group level

5. Some services are not associated with a single VoIP system

6. Hardware can be directly included in the service

7. Media gateways are related to software services registered with media server

8. Service depends on hardware and software

9. Groups of IP phones are associated to services

7

5 3

2

1

Telephony Infrastructure for VoIP


VoIP Infrastructure Issues

PSTN

Backup router is downService not affected, but risk of outage

Media Gateway is DownWhich sites or phones are affected?

Device, port or card is downWhich phones are affected?

Host is downWhich applications services are down as a result?

Port is downWhich applications services are down as a result?

Network infrastructure problems often impact VoIP entities – need end-to-end viewNetwork infrastructure problems often impact VoIP entities – need end-to-end view


Network Infrastructure for VoIP

IP Telephony Infrastructure

IP Telephony Users

IP

LayeredOver

IP Routing

VoIP

LayeredOver

LayeredOverLayeredOver

LayeredOver

Connectivity

LayeredOver

LayeredOverMPLS LSPs

Pseudo-Wire (VPLS)


IP

VoIP Operation and Management Dependencies

Transport

Signaling

• VoIP Operation– Network Services - identity and

configuration– Telephony Services - voice call

features– Signaling – session control,

destination location– Transport – supports the call

• VoIP Management– Network and Telephony Infrastructure– Quality of Service (Network, Voice)

Network ServicesDNSDHCPTFTP

Telephony ServicesCall processingMusic on holdVoicemail…


VoIP Service Management Objectives

• Auto-discover the physical, logical and virtual entities and relationships

• Monitor availability and performance attributes

• Correlate the end to end service relationships – networks, servers, applications and storage – that impact VoIP

• Automate root cause analysis of problems at all layers

• Correlate the user experience (QoE/QoS and the end to end service relationships

• Calculate the impact of problems on related infrastructure elements

• Correlate infrastructure impacts on business services and users

• Automatically adapt to changes

IP Telephony Users

IP Telephony Infrastructure


VoIP End-to-End Service Quality Management• Model and monitor end-to-end

measurements between critical components

• Correlate network and telephony infrastructure and user experience

– MOS – Delay– Jitter– Loss

• Automate root-cause analysis of variance from target service levels

• Provide operators with actionable information to pinpoint, prioritize and resolve service-affecting problems

IP

LayeredOver

IP Routing

VoIP

LayeredOver

LayeredOverLayeredOver

LayeredOver

ConnectivityConnectivity

LayeredOver

LayeredOverMPLS LSPs

Pseudo-Wire(VPLS)


1. Model-Based Management

2. Cross-Domain Automation

VoIP Service Management

ApplicationsNetwork ServersStorage

AppNetwork

ApplicationsNetwork ServersStorage

AppNetwork

3. Business Impact Visibility

Automated Analysis & Root Cause Optimizing Use of Shared Infrastructure

• Discover and monitor end to end VoIP environment

•Objects, attributes, behaviors•Relationships, dependencies•Performance and availability

• Pinpoint problems• Automate analysis• Trending and capacity planning

• Efficiently utilize converged infrastructure• Increase operational effectiveness

• Service level compliance• Business and user impacts• Lifecycle management

finding the right tool for the job network management: peter charland senior manager, product...

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