Transcript DTI – Capacity Engineering – Bob VanSickle, Deployment

DTI
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Capacity Management
Service
Edge-Fiber Node Management
November 2013
DTI
• Introductions
Expertise for end-to-end success
Agenda
• Edge-Fiber Node Capacity Management Practices and Challenges
• Overview of Methodology, Data Inputs being utilized, and their inherent
deficiencies
• Description of Various development efforts
• Discussion around R&D effort and findings
• Q&A
• Next Steps
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What is needed in Capacity
Planning
• A better, faster, more efficient way to handle
your HSD Capacity Engineering
•
Get it right the first time
•
Engineer your network faster
•
Engineer your network more effectively
• More efficient utilization of existing resources
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Leverage tools and expertise
• MSO are utilizing tools that allow for better:
•
Hardware Utilization – Level Load your CMTS
•
Manpower Effectiveness – Augment once
•
Provide reports/data for more effective planning for the HSD Network –
Know what will happen when
•
Automate the Mundane Tasks
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Edge-Fiber Node Management Challenges
• Basic Practices
–NCP Creation is Based on Nodal Modem Counts (Auspice)
–Time Consuming, tedious, often obsolete before its
implemented
–Fundamental flaw, node and port splits are based on
Modem counts and not actual usage
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Edge-Fiber Node Management Challenges
• Problems With Today’s Basic Practices
–NCP Creation is Based on Nodal Modem Counts (Auspice)
Users/modems do not operate on the basic law of averages but rather at
best case resembles a Log Normal Distribution or, most likely behave
more in line with a Power Law probability distribution pattern
–
–Time Consuming, tedious, often obsolete before its
implemented
–
When splitting nodes there is no way to determine nodal contribution to
port utilization
– Prone to human error, large spreadsheets lots of room for mistakes
–Fundamental flaw, node and port splits are based on
Modem counts and not actual usage
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Port Utilization vs. Modem Counts
• DS Port # 2 (bar 3) illustrates that DS Port Utilization is not necessarily proportional to Modem Counts.
• Comparing DS Ports #0 (bar 1) and #1 (bar 2) illustrates that growth and the magnitude of weekly variations
in DS Port Utilization are also not necessarily proportional to Modem Counts.
• This data is straight from the NCP and Weekly Capacity Utilization Reports.
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What does Port Utilization Forecasting Mean
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Actual Results: CMTS Port Utilization
Customer’s
Initial NCP
UTallest = 74%
UTallest = 45%
•
Customer’s
Next NCP
DTI’s
Optimization of
the Customer’s
Initial NCP
using the
Customer’s
initial number
of DS Ports
The same amount of CMTS hardware is used in the middle and bottom charts, but the bottom NCP would last more than 5.8
times longer.
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Comparison of DS Port Loading
(Top) Customer’s Initial NCP
(Middle) Customer’s Next NCP
(Bottom) DTI’s Optimization of the Customer’s Initial NCP (using Customer’s Initial NCP’s 6 DS Ports)
Customer’s
Initial NCP
UTallest =
74%
UTallest =
57%
Customer’s
Next NCP
DTI’s
Optimization of
the Customer’s
Initial NCP
using the
Customer’s
initial number
of DS Ports
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The Win
• Improve Customer Satisfaction
•
Less often augmentations less down time for your customers
•
Better balanced CMTS and edge elements results in less over-utilized ports offering
better throughput to your customers
• Reduce Engineering/Field Cycles
•
Turnaround of NCP Designs in 1-2 days from 3-5 days
•
Extending the time between augmentations
• Targeting Hardware Utilization
•
More efficiently engineered CMTS and edge systems.
•
Develop NCPs that more equally distribute utilization across all ports, lowering the
number of underutilized resources/ports
• Supports field standardization