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Fat AP and Cloud AP V200R010C00 Command Reference

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sfn-roam roam-check high-threshold

sfn-roam roam-check high-threshold

Function

The sfn-roam roam-check high-threshold command sets the upper RSSI threshold for agile distributed SFN roaming.

The undo sfn-roam roam-check high-threshold command restores the default upper RSSI threshold for agile distributed SFN roaming.

By default, the upper RSSI threshold for agile distributed SFN roaming is -55 dBm.

Format

sfn-roam roam-check high-threshold high-threshold-value

undo sfn-roam roam-check high-threshold

Parameters

Parameter

Description

Value

high-threshold-value

Specifies the upper RSSI threshold for agile distributed SFN roaming.

The value is an integer that ranges from -60 to -45, in dBm.

Views

RRM profile view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

You can set the STA RSSI threshold to control the sensitivity of agile distributed SFN roaming and prevent STAs from frequently roaming at radio borders of RUs. A roaming switchover occurs when the total number of records in the following conditions exceeds the value specified by the sfn-roam roam-check better-times command:
  • When the HAP detects that the STA RSSI is lower than the lower threshold: The central AP makes a record if the SNR of the FAP is higher than that of the HAP.
  • When the HAP detects that the STA RSSI is between the upper and lower thresholds: The central AP makes a record if the SNR of the FAP is 3 dB higher than that of the HAP.
  • When the HAP detects that the STA RSSI is higher than the upper threshold: The central AP makes a record if the SNR of the FAP is 5 dB higher than that of the HAP.

Precautions

The lower RSSI threshold for agile distributed SFN roaming must be no higher than the upper threshold.

Example

# Set the upper RSSI threshold for agile distributed SFN roaming to -50 dBm.

<Huawei> system-view
[Huawei] wlan 
[Huawei-wlan-view] rrm-profile name wlan-rrm
[Huawei-wlan-rrm-prof-wlan-rrm] sfn-roam roam-check high-threshold -50
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Updated: 2019-11-21

Document ID: EDOC1100064352

Views: 211355

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