CoA is not applied to Accel-PPP services.
Example
set service pppoe-server authentication radius dynamic-author server 192.168.139.132 set service pppoe-server authentication radius dynamic-author port 1700 commit vyos@vyos:~$ netstat -an | grep 1700 vyos@vyos:~$
Port 1700 is not open.
Restarting the service opens the port.
vyos@vyos:~$ sudo systemctl restart accel-ppp@pppoe.service vyos@vyos:~$ netstat -an | grep 1700 udp 0 0 192.168.139.132:1700 0.0.0.0:*