Norbert DietzNorbert Dietz

Product Line Specialist, VoIP Solutions (EMEA) Product Line Specialist, VoIP Solutions (EMEA)

Successful VoIP Introduction

Topics for Discussion

• Successful VoIP Planning• Successful VoIP Implementations• VoIP Managing• Questions

Successful VoIP Introduction

Successful VoIP planning

Six steps for successful VoIP planning

1. Network Inventory2. Network Configuration Analysis3. Network Utilization Analysis4. Modeling the Converged Communication5. Simulation Voice Readiness Assessment6. Review

Ask yourself the correct questions before the rollout.

1. Network Inventory• Data Network Inventory

– How many Switches, Routers?– How many links between what sides?– How much bandwidth should I have?

• Voice Network Inventory – How many phones, fax, modems?– How many Gateways to PSTN, lease lines?

• Unified Communication (Server) inventory – Do you have a Contact Centre?– Is there any integration with your Mail-Server?– Do you have other Servers or Databases involved

in a Unified Communication service

2. Network Configuration Analysis• Data Network Configuration

– Do you have a end to end QoS strategy?– Is the configuration entered everywhere– Is every port configured correctly?– What version of cabling do you have? (CAT4,5,6, Fibre)

• Voice Network Configuration

– How many phones/fax do you have per side?– What codec's are you using?– How are the trunks configured?– What Voice call profile do you have?

3. Network Utilization Analysis

• Data Network utilization analysis

– How big is the utilization of your routers?– How big is the utilization of your switches?– How big is the utilization of your Links?

• Voice Traffic utilization Analysis– Who is talking with whom how long? => Call Profile– Busy hour Call attempts– Where are the gateways?– Are there different level of users? (VIPs? )

4. Modeling the Communication• Data Network Bandwidth

– How bursty are your data applications?– What other Applications are using which Diffserv classes?– Where are the bottlenecks and where is bandwidth expensive ?– What is the target usage?

• Voice Network Bandwidth– What Codec's and Packet sampling rates do you want to have?– How big is the busy hour call volume?– What is the target usage?

• Be prepared the volume will grow – Check your data volume growth in the history and make an assumption– The communication may change due to VoIP?– (Video)

5. Simulation and 6. Review• Simulation

– Can you predict the performance of an complex IP Network under load?– Are you sure all devices are configured and perform as they should? – How many calls are you able to simulate in parallel?– How do you predict the R-Value in the busy hour?– How do you collect that distributed results?

• Review – How do you documentation your inventory results?– How do you document your utilization, modeling and simulation results– What do you justify if you need to invest in the data network?

PEP2

CFCF

PEP1

VoIP planning with Vivinet Assessor1. Data Network InventorySNMP discover (TCP) 161

2.Data Configuration Assessment

3. Assess UtilizationSNMP Polling (TCP) 161

4. Model Bandwidth

5. Assess VoIP Quality

6. Create a Report

Successful VoIP Planning: Organization?

Traditional IT organization Separated silos

Many questions across all IT-departments!Is your department structure ready for VoIP?

ENTERPRISE READY CONVERGENCE

Good project management is needed!

DATA

ServerVoice

IT-Management(Device)

VoiceMGMT

Converged Network

Organization.

DATA Application Voice

IT-Management(Service Management)

Topics for Discussion

• VoIP Planning

• Successful VoIP Implementations

• VoIP Managing• Questions

Successful VoIP Introduction

Successful  VoIP Implementations

1. Implement access to all network components2. Implement synthetic background traffic3. Implement automated trouble shooting with

Vivinet Diagnostics4. Implement data collection for Resource

Management and Capacity Planning5. Test your procedures in a VoIP Pilot project with

friendly users and customize your system

IP

Network

IP

Network

1. Implement access to all components

Control Centre

• Call Servers, Signaling Server• IP phones, VoIP Gateways• Voice mail systems • IP contact center applications, • The underlying IP infrastructure

(routers, switches, FW)

2. Implement synthetic Background Traffic

• Performance Endpoints as part of standard PC-built.• Performance endpoint on dedicated devices• Permanent Real-time end to end VoIP Quality measurement and alerting => Very good

data source for trending analysis.

PSTNPSTNCF

CF

CF

IP-NetworkIP-Network

Control Centre

3. Implement automated trouble shooting

• VD Triggered by synthetic background traffic(VoIP Quality Module)

• VD Triggered by Phone Polling Cisco,

• VD Triggered by Nortel QoS Alarms

– From Phase 2 Phones and the 2050Softphones

• SNMP Trap: QoS0028 R-Value, QoS0021, QoS0023

– From Nortel VGMCs• SNMP Trap QoS0021• SNMP Trap QoS0023

Control Centre

3. Implement automated trouble shooting(VD triggered by Phones)

IP

Network

IP

Network

AppManager

SNMP SNMP

Vivinet Diagnostic

XMLPOLLING

Control Centre

Root Cause

Action: Diagnostic

IP Phone User IP Phone User

IP

Network

IP

Network

3. Implement automated trouble shooting(VD triggered by Nortel Phones)

AppManager

SNMP SNMP

Vivinet DiagnosticControl Centre

Root Cause

Action: Diagnostic

NortelSignaling-

Server

IP Phone User IP Phone User

IP

Network

IP

Network

3. Implement automated trouble shooting(VD triggered by Nortel Phones)

AppManager

SNMP SNMP

Vivinet DiagnosticControl Centre

Root Cause

Action: Diagnostic

NortelSignaling-

Server

PSTN

PSTN

PSTN Phone UserIP Phone User

CF

IP

Network

IP

Network

3. Implement automated trouble shooting(Vendor independent VoIP Module)

AppManager

SNMP SNMP

Vivinet DiagnosticControl Centre

Root Cause

Action: Diagnostic

PerformanceEndpoint 1

CFCF

PerformanceEndpoint 2

4. Implement data collection for Resource Management and Capacity Planing

• Visualize historic information

• Plan for future for Trending

• Capacity Requirements

5. Test your procedures in a VoIP Pilot project with friendly users and customize

your system• Implement automated

Actions upon Events

• Adjust VoIP Quality Thresholds

• Implement Alarm filtering

• Customize severities

Topics for Discussion

• VoIP Planning• VoIP Implementations

• Successful VoIP Management• Questions

Successful VoIP Introduction

VoIP Management Basics

ALERTRealtime AM AlertsService Maps Framework Connectors

REPORTRealtime AM Charts Scheduled AM ReportsAnalysis Center Reports

TROUBLE

SHOOT

Vivinet DiagnosticsHistorical Baseline Data

Maintaining SLAs with Realtime Alerts

1.Realtime AM Alerts

2.Control Centre Service Maps

3.Framework Connectors

ALERT

Connectors

HP NVM

HP OVO

Remedy ARS

CA TNG

MS MOM

IBM Tivoli

Alerts

Alerts

Alerts

Alerts

Netcool

Control Center

Reporting for all sorts of activities

1.Realtime AM Charts

2.Scheduled AM Reports

3.Analysis Center Reports and Dashboards

REPORT

MSP Network Customer Network

IIS

AppManagerRepository

Analysis CenterOLAP

• Control Center• Operator Console• Web Console

Trend Reportsand Dashboard

AppManager Management

Server

QDB

Catalyst

Switch

Router

NortelBCM/

CS1000

SNMP

ODBC

Denotes AM Agent“Managed Client”

Signaling Serveroptional

optional

RDB

Voice Quality Endpoints

SNMP

CC

DB

Control CenterDatabase

RTCP/XR

Nortel & NetworkProxy Agent

Vivinet Diagnostics

UDP

Reporting for Managed Service Providers

1.Large Scale Solution

2.Proxy-Architecture supports overlapping address space

VD: Automated troubleshooting

Vivinet DiagnosticsHistorical Baseline Data

1.Detect Events2.Execute Action3.Generate

Report

TROUBLE

SHOOT

VD: Configuration errors discovered• Half-duplex

• Insufficient Bandwidth

• Insufficient QoS

• Interface does not have RTP Priority or LLQ or Strict Priority Queuing configured

• Interface does not have WAN link fragmentation and interleaving configured

• Only one link interface has header compression configured

• Cisco SAA Disabled• …

VD SNMP statistics interval polling

(Interval:5 sec, attempts: 12)• QLen

Delta Measurement

(Interval:5 sec, delta results: 11)

• Octets• Packets• Broadcasts• Discards• Errors• Protos• BroadcastRate• LossRate• ProtoRate• Bandwidth

(Interval:5 sec, attempts: 12)

• Cpu5min-CPU1• Cpu1min-CPU1• Cpu5sec-CPU1• MemProcessor• MemI/O

Interface Statistics

Device Statistics

(Interval: 5 sec, Attempts:5)• Reachability

Link Statistics

QuestionsQuestions

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