I am issue COA messages to an MS-220 switch to change the VLAN. The VLAN is changing fine which is great. However, the port needs to bounce to trigger a DHCP renew. I can't seem to find anything on how to do that.
Change of Authorization is used to change client authorizations in the following use cases:
Reauthenticate RADIUS Clients Changing the VLAN for an existing client session when authentication via Wired 802.1x or MAC Authentication Bypass (MAB) is possible using CoA. A port bounce will force the client to re-authenticate and assign the new VLAN.