A Case for the 3 rd Radio. Robin Jellum / Director, Technical Marketing

Transcription

1 A Case for the 3 rd Radio Robin Jellum / Director, Technical Marketing

2 Increasing Demands on WiFi Networks Risk & Complexity Bandwidth Security Threats Devices Performance Users Resources Gap IT Team IT Budget IT resources remain the same 2

3 Reliability isn t easy Preparation Planning Design today and tomorrow Validation Redundancy Reliable HW Solid SW Operations Training Responsive vendor support Tools System 3 rd Party Regular updates 3

4 Proactive vs. Reactive Proactive Planning Validating Testing Monitoring Self Tuning per environment Reactive Timely problem reports Fast troubleshooting Local to problem Correct tools Knowledge Automate and integrate 4

5 Natural Progression Third Radio Overlay Networks - WIPS - Monitoring Background Scanning 5

6 Overlay Network True Overlay Complete separate network Requires: Hardware Switch ports Cabling Power Management system Hybrid Fulltime Monitor APs in monitor mode ~20% additional APs Temporary AP converted for troubleshooting Complex setup AP out of service 6

7 Background Scanning Access Channel Access Channel Access Channel 10sec 10sec 10sec 100ms Off-channel Scan 100ms Off-channel Scan Real-time traffic (voice & video) Scans disabled Quality is affected 7

8 3 rd Radio Architecture Radio 1 Access Radio 2 Access Radio 3 Non-Access 2.4GHz 5GHz 1 channel channel Scanning Testing Monitoring Prevention 8

9 3 rd Radio Advantages Scan / Monitor Speed Accuracy Non Access interrupting Intelligence Alert Remediation Scan Ahead DFS Interference Utilization Testing No config changes Always available Always local No travel Flexible On-demand Scheduled Automated (triggered) 9

10 Speed = More Data = Accuracy RRM Channel Selection Tx Power WIPS Detection Prevention Monitoring Clients Neighboring APs 10

11 Scanning Calculations Channel Scanning 2.4GHz 5GHz 3rd Radio Number of Channels Number of Access Channels Channels to Scan Access Channel Dwell Time Off Channel Scan Time Scan Time (Seconds) Scan Time (Min, Sec) 02:11 05:53 00:05 3 Scan Cycles 06:34 17:41 00:15 10 Scan Cycles 21:53 58:55 00:50 Scans 71 times faster Provides 7000% more accuracy 11

12 Some Test Possibilities Spectrum Analysis Packet Trace WIPS protection Penetration Testing RF look-ahead Load Testing Predator detection Multicast Captive Portal RF Jammer Test AP neighbor Association Authentication RF & LAN & WAN VLAN VoFi Throughput QoS Applications Voice (RF, wired, Internet) Video (conferencing, streaming) Roaming 12

13 When all APs have 3 rd Radio Convenience Right click / Schedule / Automate User impacts (outage) Fast Mean-Time-To-Resolve (MTTR) No travel No configuration / outage No tools Experience Assurance Pretest important events Random spot checks All aspect of client experience 13

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15 3 rd Radio Requirements 2x2 SW architecture API Container 2x2 3x3 Global Access 1x1 Ease of use 15

16 What are you missing? 16

17 Hardware nominal cost Upfront Cost Software Architecture Development Testing Overlay / Hybrid $$$$$ Ports, cable, power, etc. Background Scanning rd Radio $ Nominal 17

18 Time Travel Troubleshooting Costs Set up Reproduction Collection Diagnose / Analyze 18 Tools Sniffer Network / Protocol analyzer Spectrum analyzer Training

19 Other Costs User Downtime / Productivity Soft Costs Satisfaction Frustration Confidence Breakeven Support Cost (Hr) $100 MTTR improvement 25% MTTR 2 Radio (Hr) 1 MTTR 3 Radio (Hr) 0.75 Savings per call $25 2 Radio AP $200 $500 $1,000 3 Radio AP $220 $550 $1,100 Delta $20 $50 $100 Payback (# of calls) <1 2 4 Opportunity Costs Disruptive Reactive 19

20 3 rd Radio - No Brainer Reduce Reactive Shorter MTTR Faster detection/response Rogue Coverage hole Interference Connection problem Trigger / automate tests Test on demand More Proactive More data better decisions Faster RRM Avoids problems Pre-test Modest incremental cost 20

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