H19-404-V1.0: HCSE-Presales-Campus Network Planning and Design V1.0Demo

By Huawei · Question Mode

QuestionQ91

Campus WLAN Planning and Design

Which of the following statements about Layer 3 roaming is false?

  • A When Layer 3 roaming occurs on a STA, the STA traffic is diverted to the HAP.
  • B The IP address of a STA changes after Layer 3 roaming.
  • C The HAP is determined when the STA accesses the network for the first time.
  • D Before and after STAs implement Layer 3 roaming, the SSID remains the same but VLANs are different.
Explanation

Layer 3 roaming preserves the STA’s IP address even when it moves between different service VLANs or subnets. Traffic is detoured through the AP with which the STA first associated—the HAP—so the STA retains connectivity using its original address. Huawei documents that Layer 3 roaming uses different service VLANs and detours the roaming STA’s traffic to the initially associated AP or its Layer 2 domain.

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