the sine field effect - cqr2012.ieee-cqr.orgcqr2012.ieee-cqr.org/may16/session 8...
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The Sine Field Effect Key components to an effective performance management strategy
Brian Harvell VP, Product Engineering
SevOne
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1. COLLECT The Six Key Steps To Effective Performance Management
2. BASELINE 3. THRESHOLD 4. ALERT 5. REPORT 6. ANALYZE
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LTE – Mobile Device Connection UE RAN Core Applications
eNB
MME
SGW PGW
PCRF
HSS/AAA IMS APPS
Data Center
End-to-End Testing
Segmentation Testing
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What Should You Collect and Measure? LTE Enabled
Radio Access
E-RAB Accessibility
E-RAB Retainability IP Throughput Latency Cell Availability
Aggregation & Backhaul
Packet Drops, Delay and Variation
Y.1731 and 802.1ag Tests
EPC UEs attached Bearers Established
Active Bridged Subscribers
IP Address Pool Utilization
(v4/v6)
Transport / Backbone
Throughput Round Trip Delay
Total IP Conversations
by CoS
IMS Core HSS Load Requests
Authentication Success/failure Call Failure SIP Session
Failures Message Count
In/Out
Transaction Count
(EHRPD/LTE)
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End to End Latency
Reporting
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IP Backhaul KPI Reporting
Jitter
Packet Loss
Latency
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IMS KPI Reporting
HSS Transaction Rate CCF Successful
ACAs CSCF Registered Subscribers
PCRF Current
Connections
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LTE KPI Reporting
CPG UEs Attached PGW
IP Pool Utilization
PGW Current Sessions
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Alert
Explore
Explain
Resolve in Seconds!
Select timeframe
Get NetFlow
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The Sine Field Effect
• Discovered while working at AOL in late 90’s
• Illustrates importance of performance management
• Why you should care about baselines and understanding your data
The Seinfeld Effect
• Every Thursday evening at 9:00pm local time would see a significant drop in login rate
• Took many weeks to diagnose • Root cause: Users logging off system to
watch …. Seinfeld