В логах сервера периодически возникает такое
May 18 12:07:40 moscow-battle.com systemd-networkd[910]: veth06682cb: Link DOWN
May 18 12:07:40 moscow-battle.com systemd-networkd[910]: docker0: Lost carrier
May 18 12:07:40 moscow-battle.com systemd-networkd[910]: veth882f97d: Lost carrier
May 18 12:07:40 moscow-battle.com systemd-networkd[910]: vetha97645a: Lost carrier
May 18 12:07:41 moscow-battle.com systemd-networkd[910]: veth882f97d: Link DOWN
May 18 12:07:41 moscow-battle.com systemd-networkd[910]: vetha97645a: Link DOWN
May 18 12:07:46 moscow-battle.com systemd-networkd[910]: veth1f30a2c: Lost carrier
May 18 12:07:46 moscow-battle.com systemd-networkd[910]: veth1f30a2c: Link DOWN
May 18 12:07:47 moscow-battle.com systemd-networkd[910]: pterodactyl0: Lost carrier
May 18 12:07:49 moscow-battle.com systemd-networkd[910]: veth766fa4c: Link UP
May 18 12:07:49 moscow-battle.com systemd-networkd[910]: veth5375ae0: Link UP
May 18 12:07:50 moscow-battle.com systemd-networkd[910]: veth5375ae0: Gained carrier
May 18 12:07:50 moscow-battle.com systemd-networkd[910]: veth5375ae0: Gained IPv6LL
May 18 12:07:50 moscow-battle.com systemd-networkd[910]: docker0: Gained carrier
May 18 12:07:50 moscow-battle.com systemd-networkd[910]: veth766fa4c: Gained carrier
May 18 12:07:50 moscow-battle.com systemd-networkd[910]: veth766fa4c: Gained IPv6LL
May 18 12:28:37 moscow-battle.com systemd-networkd[910]: veth766fa4c: Lost carrier
May 18 12:28:37 moscow-battle.com systemd-networkd[910]: veth766fa4c: Link DOWN
May 18 12:28:38 moscow-battle.com systemd-networkd[910]: veth5375ae0: Lost carrier
May 18 12:28:38 moscow-battle.com systemd-networkd[910]: veth5375ae0: Link DOWN
May 18 12:28:38 moscow-battle.com systemd-networkd[910]: docker0: Lost carrier
Как узнать почему?