During a client roaming event, which device is responsible for communicating the new Layer 2 EID mapping of a wireless supplicant to the fabric domain?
I think A is correct
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
A is correct : In a Cisco SD-Access network, during a client roaming event, the device responsible for communicating the new Layer 2 EID (Endpoint Identifier) mapping of a wireless supplicant to the fabric domain is the WLC (Wireless LAN Controller).
The WLC is responsible for updating the Host Tracking database with the new roaming client information. When a wireless client moves between Access Points, the WLC updates the client’s MAC address (used as the EID) and informs the Control Plane (CP) to ensure that the fabric devices (Layer 2 and Layer 3) apply this change.
Therefore, the correct answer is A: WLC, as the WLC handles the EID updates and manages the roaming process.
Client Roaming Flow in this document:
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
Since Layer 2 EID in terms of LISP is a MAC address, the WLC is responsible for updating the control plane (fabric domain)
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