Enable Calculation time
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Select the Enable check box to initiate the calculation of the time required to compute location.Note
| This parameter applies only to clients, rogue access points, rogue clients, and interferers.
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Caution
| Enable this parameter only under Cisco TAC personnel guidance because it slows down the overall location calculations.
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Enabled OW Location
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Select the Enable check box to include Outer Wall (OW) calculation as part of location calculation.
Note
| This parameter is ignored by the mobility services engine.
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Relative discard RSSI time
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Enter the number of minutes since the most recent RSSI sample after which RSSI measurement should be considered discarded. For example, if you set this parameter to 3 minutes and the mobility services engine receives two samples at 10 and 12 minutes, it keeps both samples. An additional sample received at 15 minutes is discarded. The default value is 3. Allowed values range from 0 to 99999. A value of less than 3 is not recommended.
Note
| This parameter applies only to clients, rogue access points, rogue clients, and interferers.
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Absolute discard RSSI time
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Enter the number of minutes after which RSSI measurement should be considered stale and discarded, regardless of the most recent sample. The default value is 60. Allowed values range from 0 to 99999. A value of less than 60 is not recommended.
Note
| This parameter applies only to clients.
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RSSI Cutoff
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Enter the RSSI cutoff value, in decibels (dBs) with respect to one (1) mW (dBm), above which the mobility services engine will always use the access point measurement. The default value is –75.
Note
| When 3 or more measurements are available above the RSSI cutoff value, the mobility services engine discards any weaker values (lower than RSSI cutoff value) and use the 3 (or more) strongest measurements for calculation; however, when only weak measurements below the RSSI cutoff value are available, those values are used for calculation.
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Note
| This parameter applies only to clients.
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Caution
| Modify only under Cisco TAC personnel guidance. Modifying this value can reduce the accuracy of location calculation.
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Enable Location Filtering
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Location filtering is used to smooth out the jitters in the calculated location. This prevents the located device from jumping between two discrete points on the floor map.
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Chokepoint Usage
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Select the Enable check box to enable chokepoints to track Cisco compatible tags.
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Use Chokepoints for Interfloor conflicts
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Perimeter chokepoints or weighted location readings can be used to locate Cisco compatible tags.
Options:
- Never: When selected, perimeter chokepoints are not used to locate Cisco compatible tags.
- Always: When selected, perimeter points are used to locate Cisco compatible tags.
- Floor Ambiguity: When selected, both weighted location readings and perimeter chokepoints are used to locate Cisco-compatible tags. If similar locations are calculated by the two methods, the perimeter chokepoint value is used by default.
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Chokepoint Out of Range timeout
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When a Cisco compatible tag leaves a chokepoint range, the timeout period entered is the period that passes before RSSI values are again used for determining location.
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Absent Data cleanup interval
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Enter the number of minutes that data for absent mobile stations is kept. An absent mobile station is one that was discovered but does not appear in the network. Default value is 1440.
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Use Default Heatmaps for Non Cisco Antennas
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Select this check box to enable the usage of default heatmaps for non-Cisco antennas during the Location Calculation. This option is disabled by default.
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Movement Detection
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Individual RSSI change threshold
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This parameter specifies the Individual RSSI movement recalculation trigger threshold.
Enter a threshold value between 0-127 dBm.
Modify only under Cisco TAC personnel guidance.
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Aggregated RSSI change threshold
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This parameter specifies the Aggregated RSSI movement recalculation trigger threshold.
Enter a threshold value between 0-127 dBm.
Modify only under Cisco TAC personnel guidance.
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Many new RSSI change percentage threshold
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This parameter specifies Many new RSSI movement recalculation trigger threshold in percentage.
Modify only under Cisco TAC personnel guidance.
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