What cautions should be taken when configuring a Layer 2 access network between APs and the gateway on a WLAN

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All downlink ports connected to APs on access and aggregation switches must be isolated from each other. If a packet transport network (PTN) is deployed between APs and the gateway, use leased lines but not a private network.

Other related questions:
What cautions should be taken when configuring DHCP Option 60 and Option 43 on a Layer 2/Layer 3 network?
DHCP Option 43 and Option 60 must be configured on a Layer 3 network, while they are optional on a Layer 2 network.

What cautions should be taken when configuring Option 43 on an AC
When the AC is deployed on a Layer 3 network, you must configure Option 43. It is optional when the AC is deployed on a Layer 2 network.

What are the differences in APs' Layer 2 and Layer 3 access to ACs
- In Layer 2 access mode, an AP broadcasts a probe frame to discover ACs. - In Layer 3 access mode, an AP discovers ACs using DHCP Option 43 or DNS. a) When Option 43 is used, an AP obtains an AC's IP address when the AP obtains its own IP address. Then

Precautions that should be taken when a management VLAN is configured on a WLAN device
Pay attention to the following points when configuring a management VLAN on a WLAN device: 1. VLAN 1 cannot be configured as a management VLAN. 2. After a VLAN is configured as a management VLAN, interfaces added to this VLAN must be trunk or hybrid interfaces.

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