First of all devices:
HP ProCurve Switch 2610-24-PWR
Cisco IP Phone 8811
I'm receiving loads of logs like these:
I 01/16/17 23:58:39 ports: port 20 is Blocked by STP I 01/16/17 23:58:39 ports: port 20 is now on-line I 01/16/17 23:58:54 ports: port 20 is now off-line
These logs are occurring every minute of every hour.
Is this a problem with cable or IP Phone considered as a switch? Or maybe something else?
Thanks in advance.