According to different scenarios, the AC or AP can be set as the home agent in the Layer 3 roaming of the direct forwarding network. When an AP is set as a home agent, tunnel forwarding needs to be…

Question

Options

• ATrue
• BFalse

• A
  20% (8)
• B
  80% (32)

Explanation

B is correct because the statement misrepresents how tunnel forwarding works when an AP is the home agent. In direct forwarding Layer 3 roaming, when the AP acts as the home agent, the tunnel is established between the home AP and the foreign AC (Access Controller) - not directly between the home AP and the foreign AP. The AC on the foreign side still participates in the forwarding path to relay traffic down to the foreign AP.

Why A (True) is wrong: Selecting True would mean accepting that APs communicate peer-to-peer across roaming boundaries without AC involvement, which contradicts how Huawei's WLAN architecture operates. APs are managed devices that rely on the AC for inter-domain coordination; they do not establish direct inter-AP tunnels across different Layer 3 domains independently.

Memory tip: Think of the AC as a permanent gatekeeper on each network segment - even when the AP wears the "home agent" hat, the foreign AC is always the tunnel endpoint on the far side. No matter which device is the home agent (AC or AP), the foreign AC never gets bypassed.

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