enterprise traffic management challenges performance management for converged networks
TRANSCRIPT
Enterprise Traffic Management Enterprise Traffic Management ChallengesChallenges
Performance Management for Converged NetworksPerformance Management for Converged Networks
Overview Introduction…
Leslie Miller, Sr. Solutions Marketing Manager [email protected]
Converged network challenges Meeting the challenge using the Management
Lifecycle Pre-assessment Planning and pre-implementation preparations Post-deployment impact analysis On-going management of converged environment
Converged Network Challenges
Converged Network Challenges
Primary Business Concern High level of expectations surrounding voice services
Technical Voice traffic overwhelming existing network resources Voice is a real-time application, i.e., sensitivity to
delay, jitter and packet loss Proper traffic prioritization (QoS) to ensure other
applications do not contend with voice-allocated bandwidth
Adding complexity to already very complex enterprise networks
Meeting the ChallengePerformance Management for Converged Networks
Management Lifecycle for Convergence Assessment
Is your network ready for Voice? Planning
Have made decisions to ensure an effective rollout?
Impact analysis Is everything running as smoothly as planned?
Ongoing management How is your network changing and growing
over time?
Step One: AssessmentIs your network ready for Voice?
Create an inventory of all applications on the network
Evaluate bandwidth to ensure capacity for Voice Understand network utilization to determine areas with too
little capacity Identify how business sites use network resources
Baseline the response time of key business applications
Audit the network for subtle, systemic problems Identify issues that may impact a VoIP deployment “No matter how well architected your network is, once voice
is added, any idiosyncrasy is bound to appear.”
Application visibility provides business justification for IT decisions:
Are there good reasons for an upgrade? Are there non-business uses of the network?
Application visibility provides business justification for IT decisions:
Are there good reasons for an upgrade? Are there non-business uses of the network?
Understand how the business uses the network
Well-known, custom, web-based, P2P, complex, etc.
Well-known, custom, web-based, P2P, complex, etc.
A pre-deployment snapshot of response time can be used as a comparison post-deployment
to ensure voice does not negatively impact delivery of key business applications
A pre-deployment snapshot of response time can be used as a comparison post-deployment
to ensure voice does not negatively impact delivery of key business applications
Baseline response time of key business apps
Response time provides insight into the end-user experience and should be an integral part of any performance management tool
Response time provides insight into the end-user experience and should be an integral part of any performance management tool
Step Two: PlanningHave you made all decisions to ensure an effective rollout?
Based on gathered data… Fine-tune capacity and implement needed
upgrades Investigate and troubleshoot subtle problems Establish post-deployment alarm thresholds Establish and implement QoS policies
Fine-tune capacity and implement needed upgrades
What applications contribute to capacity? • Eliminate undesired traffic
• Reschedule processes• Redistribute load
• Add new bandwidth where required
What applications contribute to capacity? • Eliminate undesired traffic
• Reschedule processes• Redistribute load
• Add new bandwidth where required
Step Three: Impact AnalysisIs everything running as smoothly as planned?
Confirm voice configuration and quality Is voice being delivered as designed?
Confirm QoS configuration and success Are all applications in the proper delivery class?
Determine whether voice and bandwidth utilization estimates meet with actuals
Re-evaluate response time of critical applications
Have there been negative impacts of voice or positive impacts because of QoS?
Monitor call jitter, packet loss percentage, and setup times to confirm voice performanceMonitor call jitter, packet loss percentage, and setup times to confirm voice performance
Validate codec and voice traffic prioritization configurationsValidate codec and voice traffic prioritization configurations
Validate voice is being delivered as designed
Applications that have been assigned a wrong DSCP will be quickly identified in this
view and will make pinpointing the mis-configured device much easier
Applications that have been assigned a wrong DSCP will be quickly identified in this
view and will make pinpointing the mis-configured device much easier
Validate QoS configurations were set correctly
Pre-implementationPre-implementation
Evaluate the impact of voice on utilizationEvaluate the impact of voice on utilization
Post-implementationPost-implementation
Does actual volume meet with estimates
Does actual volume meet with estimates
Step Four: Ongoing ManagementHow is your network changing and growing over time? Converged networks need unified performance
management Managing the network in pieces can be time consuming Unified product provides a lower TCO!
Continuation of the tasks you performed in assessment and post-deployment impact phases
Troubleshooting - requiring real-time information Planning and traffic engineering - requiring longer-term
historical information Communication to key constituents
Easy to create, customizable reports
Converged networks need unified management
Voice doesn’t exist alone on the network. A converged view of all applications provides context to a problem and allows you to troubleshoot faster
Voice doesn’t exist alone on the network. A converged view of all applications provides context to a problem and allows you to troubleshoot faster
Context to performance problems enables faster troubleshooting: Make sure your performance management solution can display needed information side-by-sideContext to performance problems enables faster troubleshooting: Make sure
your performance management solution can display needed information side-by-side
Converged networks need unified management
Forecast the growth of segments, circuits or applications and continue to refine traffic engineering and capacity planning based on application additions
and changes in usage patterns
Forecast the growth of segments, circuits or applications and continue to refine traffic engineering and capacity planning based on application additions
and changes in usage patterns
Evaluate growth on an ongoing basis
Customize reports to reflect individual needs: from high-level summaries to meticulous details
Customize reports to reflect individual needs: from high-level summaries to meticulous details
Reporting results
Summary
Management Lifecycle for Convergence
Assessment Is your network ready?
Planning Have made decisions to ensure an effective
rollout? Impact analysis
Is everything running as smoothly as planned? Ongoing management
How is your network changing and growing over time?
