Exam 350-401 topic 1 question 691 discussion

The requirement to "centrally switch the traffic" indicates that wireless traffic should be tunneled back to the WLC for processing, which aligns with both Local mode and Fabric mode. However, since the design is within a Cisco SD-Access Fabric wired network, the wireless solution must integrate with the Fabric overlay. This requires the APs to support Fabric-specific features, such as VXLAN tunneling and alignment with the SD-Access control plane. Fabric mode is the recommended and purpose-built AP mode for SD-Access wireless deployments. It ensures that APs register with the WLC and participate in the Fabric, enabling centralized switching while maintaining consistency with the SD-Access architecture. Local mode can work with SD-Access if configured with a Fabric-enabled WLC, but it is not the native mode for Fabric integration and may require additional configuration to fully support SD-Access features.

A company hires a network architect to design a new OTT wireless solution within a Cisco SD-Access Fabric wired network. The architect wants to register access points to the WLC to centrally switch the traffic. Which AP mode must the design include?

The requirement to "centrally switch the traffic" indicates that wireless traffic should be tunneled back to the WLC for processing, which aligns with both Local mode and Fabric mode. However, since the design is within a Cisco SD-Access Fabric wired network, the wireless solution must integrate with the Fabric overlay. This requires the APs to support Fabric-specific features, such as VXLAN tunneling and alignment with the SD-Access control plane. Fabric mode is the recommended and purpose-built AP mode for SD-Access wireless deployments. It ensures that APs register with the WLC and participate in the Fabric, enabling centralized switching while maintaining consistency with the SD-Access architecture. Local mode can work with SD-Access if configured with a Fabric-enabled WLC, but it is not the native mode for Fabric integration and may require additional configuration to fully support SD-Access features.

Designing the wireless integration in SD-Access: As mentioned earlier, there are two possible designs for deploying wireless with an SD-Access fabric: • Cisco Unified Wireless Network wireless OTT: The SD-Access fabric is just an IP transport network, and wireless is a pure overlay. • SD-Access Wireless: Wireless is integrated into SD-Access and can leverage all the advantages of the fabric. -------- Let's recap some of the important design considerations for OTT mode: At FCS, the only mode supported as OTT is Centralized (AP local mode) --------

A is correct

A is correct

Let's first figure out what's local and FlexConnect mean. Local switching means traffic flows from wireless client to network through APs bypassing WLCs, when centrally switching means traffic flows to network trough WLCs. But both of them FlexConnect architecture. Looks like the question not relevant.

Scenario 2. https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/tech_notes/b_ap_migration_from_traditional_wireless_to_sda_fabric.html

the access point will be registered as local AP

OOT- Wireless is Not part of Fabiric and runs overlay. Flexconnect - Local swithcing (Question focous on central switching) So only A is left

Why A? Centrally means Flexconnect, not local right?

https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/flexconnect.html