Recommended mode for forwarding user data

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User data can be forwarded in local forwarding or tunnel forwarding mode. Data traffic needs to be aggregated to the AC in tunnel forwarding mode, but not in local forwarding mode. The forwarding mode is determined by service requirements.

If there are a large number of concurrent traffic flows, use local forwarding so that user data will not pass through the AC.

Other related questions:
Is service data aggregated on an AC? What is the recommended forwarding mode and why
Service data can be forwarded locally or over a tunnel. Service data is aggregated on an AC only when it is forwarded over a tunnel. You can choose the forwarding mode according to the site requirements. When a large number of concurrent users exist, it is recommended that service data be forwarded locally.

Data forwarding mode
Data forwarding mode: - Centralized forwarding (also called tunnel forwarding): APs set up control tunnels and data tunnels with an AC. Control data between the AP and AC and service data from WLAN users are encapsulated in the control tunnel and data tunnel, respectively. After the service data reaches the APs, it must be sent to the AC through the data tunnel first and then be forwarded at L2 and L3. - Direct forwarding (also called local forwarding): APs only set up control tunnels with an AC. After the service data reaches the APs, it directly enters the wired network through the switch that connects to the APs and then be forwarded at L2 and L3. In summary, tunnel forwarding facilitates centralized management and control, and service data must be forwarded through an AC, reducing packet forwarding efficiency and burdening the AC. For direct forwarding, packet forwarding efficiency is high. You can select either of the forwarding mode as required. AC deployment - Bypass mode ACs are directly connected to aggregation switches or core switches in bypass mode. If two ACs provide 1+1 backup, they connect to the aggregation switch or core switch. - Establish an independent AC management area that connects to the core switch in bypass mode. In actual networking, an aggregation switch is connected to the core switch in bypass mode, and all the ACs are connected to the aggregation switch. Verify the forwarding mode by checking that an AC serves as the gateway or running the display forward-type service xx command.

Which is the recommended load balancing mode on S series switches
Q: Which is the recommended load balancing mode on S series switches? A: If you know the rate of traffic from specified network segments, configure flow-based policy routing to forward traffic from specified network segments through specified outbound interfaces. If you have confirmed that the source and destination IP addresses of service flows are discrete, configure equal-cost routes to load balance the service flows.

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