Seems to be wrong. The question says "SD-access wireless" . The right document is : https://www.cisco.com/c/dam/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/deploy-guide/cisco-dna-center-sd-access-wl-dg.pdf and the answer D
ehm.. the document states "• There are two types of fabric border nodes: border and default border nodes. Both types provide the fundamental routing entry
and exit point for all data traffic going into or out of the fabric overlay, as well as for VN and/or group-based policy
enforcement (for traffic outside the fabric)" so it's C
SUPER Confusing question but i will decipher it for you:
The answer is 100% C and here's why:
Here is a question for you:
What is one fact about Cisco SD-Access wireless network infrastructure deployments?
A. The access point is part of the fabric overlay. < Correct
B. The wireless client is part of the fabric overlay.
C. The access point is part of the fabric underlay.
D. The WLC is part of the fabric underlay
So this means Wireless Clients ARE NOT PART OF THE Wireless FABRIC. So if they are not part of the Fabric which Device do they use to enter the Fabric ? = (The AP). Which device do they use to Exit the Fabric ? It cannot be the AP because they use it to enter it. (The only device that a client can use to exit the Fabric is a Border Router)
You're welcome :)
I may be wrong but I think the correct answer is D. Border Nodes have a different purpose, they connect fabric and external networks. In SD-Access Wireless architecture APs are integrated into fabric through fabric edge nodes, therefore it goes from : WL Client wireless connection -> Fabric [ AP wired to -> Edge node-> VXLAN-> WLC ]
Of course it's transiting Border Node on the way to WLC, but it's no an entry /exit point for wireless client. If i was an exit point how would client get the return traffic ?
Fabric Border Node: This node serves as the gateway to external networks, acting as the entry and exit point for traffic entering and leaving the SD-Access fabric.
Fabric Access Points: These are the wireless access points that connect wireless clients to the fabric.
Border Node
Word for Word for Access Wireless at the end of page 6 to page 7
https://www.cisco.com/c/dam/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/deploy-guide/cisco-dna-center-sd-access-wl-dg.pdf
FBN serves as the gateway between the SD-Access fabric and external networks. It inspects and filters traffic entering and exiting the fabric, enforcing security policies and controlling routing.
abric access points is not the correct answer is that fabric access points (APs) are responsible for providing wireless connectivity to client devices and forwarding traffic within the fabric. However, they do not manage the entry and exit of traffic in and out of the fabric network itself.
c: A fabric border node is required to allow traffic to egress and ingress the fabric site
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.pdf
In a Cisco SD-Access wireless network, the device that serves as an entry and exit point in and out of the fabric is called a Border Node (BN). The Border Node is responsible for connecting the SD-Access fabric to external networks, such as the Internet or other non-fabric networks.
Answer is C.
Answer can be found here:
https://www.cisco.com/c/dam/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/deploy-guide/cisco-dna-center-sd-access-wl-dg.pdf
On Page 7
In an SD-Access Wireless Deployment the Access Points are part of the Fabric, so the second traffic hits the AP you are already in the Fabric, when traffic goes from Network to the Client it traverses the AP as an exit point into the client. In and Out. Answer is D
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