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300-370 · Question #141

Which three options can be configured as roaming triggers on a WGB? (Choose three.)

The correct answer is C. RSSI E. packet retries F. minimum data rate. Workgroup Bridges (WGBs) can be configured to initiate roaming based on specific wireless metrics, including Received Signal Strength Indicator (RSSI), the number of packet retries, and the minimum data rate.

Troubleshooting Client Connectivity Issues

Question

Which three options can be configured as roaming triggers on a WGB? (Choose three.)

Options

  • ASNR
  • Bco-channel interference
  • CRSSI
  • Dpacket fragmentation
  • Epacket retries
  • Fminimum data rate

How the community answered

(28 responses)
  • A
    7% (2)
  • C
    89% (25)
  • D
    4% (1)

Why each option

Workgroup Bridges (WGBs) can be configured to initiate roaming based on specific wireless metrics, including Received Signal Strength Indicator (RSSI), the number of packet retries, and the minimum data rate.

ASNR

While Signal-to-Noise Ratio (SNR) is a critical metric for wireless quality, it is typically derived or used internally by devices and not directly configurable as a primary roaming trigger on Cisco WGBs.

Bco-channel interference

Co-channel interference affects wireless performance, but it is not a direct, configurable roaming trigger parameter for WGBs; rather, it is a condition that might lead to other triggers like increased packet retries or lower data rates.

CRSSICorrect

RSSI (Received Signal Strength Indicator) is a common metric used to determine signal quality, and a low RSSI value can trigger a WGB to roam to an AP with a stronger signal.

Dpacket fragmentation

Packet fragmentation refers to breaking larger packets into smaller ones, which can happen due to various reasons but is not a direct configurable roaming trigger for WGBs.

Epacket retriesCorrect

Excessive packet retries indicate poor link quality or interference, prompting the WGB to roam to an AP that provides a more reliable connection.

Fminimum data rateCorrect

A minimum data rate can be configured as a threshold; if the current data rate drops below this value, it signals poor performance and triggers the WGB to seek a better association.

Concept tested: WGB roaming trigger configuration

Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-0/configuration-guide/b_cg80/b_cg80_chapter_01011.html

Topics

#WGB roaming#roaming triggers#RSSI#packet retries

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