shrx4me: just looked at my switch log this morning and you can see how many times in a short time frame the Apple TV 4K is bouncing. My 4K is connected to port 3 on the switch. BTW... my 4K is the 2017 version and running latest code 14.6
Jun 23 07:34:29 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down
Jun 23 07:34:58 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to up
Jun 23 07:34:59 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 07:35:02 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 07:35:03 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down
Jun 23 07:44:34 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to up
Jun 23 07:44:35 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 07:44:37 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 07:44:38 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down
Jun 23 07:44:41 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to up
Jun 23 07:44:42 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 07:44:54 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 07:44:56 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 07:50:02 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 07:50:03 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down
Jun 23 07:50:21 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to up
Jun 23 07:50:22 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 07:50:32 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 07:50:34 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 07:55:43 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 07:55:44 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down
Jun 23 07:56:02 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to up
Jun 23 07:56:03 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 07:56:13 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 07:56:16 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down
Jun 23 08:01:37 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to up
Jun 23 08:01:38 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 08:01:45 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 08:01:46 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down
Jun 23 08:09:05 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 08:09:07 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to up
Jun 23 08:13:26 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 08:13:27 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down
Jun 23 08:13:45 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to up
Jun 23 08:13:46 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 08:13:58 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 08:14:01 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down
Jun 23 08:19:20 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to up
Jun 23 08:19:21 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to up
Jun 23 08:19:28 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/3, changed state to down
Jun 23 08:19:29 EST: %LINK-3-UPDOWN: Interface GigabitEthernet0/3, changed state to down