Which statement about a fabric access point is true?

技术

QUESTION 
Which statement about a fabric access point is true?
A. It is in local mode and must be connected directly to the fabric edge switch.
B. It is in local mode and must be connected directly to the fabric border node
C. It is in FlexConnect mode and must be connected directly to the fabric border node.
D. It is in FlexConnect mode and must be connected directly to the fabric edge switch.


Correct Answer: A


Section: (none)
Explanation
Explanation/Reference:
Reference: https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/sda-sdg-2019oct.html

Fabric-Mode Access Points

The fabric-mode APs are Cisco Wi-Fi 6 (802.11ax) and 802.11ac Wave 2 APs associated with the fabric WLC that have been configured with one or more fabric-enabled SSIDs. Fabric-mode APs continue to support the same wireless media services that traditional APs support such as applying AVC, quality of service (QoS), and other wireless policies.  Fabric APs establish a CAPWAP control plane tunnel to the fabric WLC and join as local-mode APs They must be directly connected to the fabric edge node or extended node switch in the fabric site.  For their data plane, Fabric APs establish a VXLAN tunnel to their first-hop fabric edge switch where wireless client traffic is terminated and placed on the wired network.

Fabric APs are considered a special case wired host.  Edge nodes use Cisco Discovery Protocol (CDP) to recognize APs as these wired hosts, apply specific port configurations, and assign the APs to a unique overlay network called INFRA_VN.  As a wired host, access points have a dedicated EID-space and are registered with the control plane node.  This EID-space is associated with a predefined overlay network called INFRA_VN in the Cisco DNA Center UI as shown in Figure 10.  It is a common EID-space (prefix space) and common virtual network for all fabric APs within a fabric site.  The assignment to this overlay virtual network allows management simplification by using a single subnet to cover the AP infrastructure at a fabric site.

Figure 10.                             Cisco DNA Center UI – INFRA_VN

Cisco DNA Center UI – INFRA_VN

Tech tip

For additional information and details on wireless operations and communications with SD-Access Wireless, Fabric WLCs, and Fabric APs, please see the SD-Access Wireless Design and Deployment Guide.

发表评论

您的电子邮箱地址不会被公开。 必填项已用*标注