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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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