Why does Traefik crash the server?

Question

ubuntu

Good afternoon!

There is a server under Ubuntu with installed Docker and Traefik (+letsencrypt).
Raised several containers with sites and configured routing.
The problem is that after a while the server loses its connection to the internet and becomes unavailable.

In syslog I see this:

Jun 19 07:01:24 Popov systemd-networkd[502]: enp6s0: Gained carrier
Jun 19 07:01:24 Popov kernel: [38228.836000] e1000e: enp6s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx
Jun 19 07:01:26 Popov systemd-networkd[502]: enp6s0: Lost carrier
Jun 19 07:01:26 Popov kernel: [38230.379197] e1000e: enp6s0 NIC Link is Down
Jun 19 07:01:29 Popov systemd-networkd[502]: enp6s0: Gained carrier
Jun 19 07:01:29 Popov kernel: [38233.264076] e1000e: enp6s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx
Jun 19 07:01:30 Popov kernel: [38233.875259] e1000e: enp6s0 NIC Link is Down
Jun 19 07:01:30 Popov systemd-networkd[502]: enp6s0: Lost carrier
Jun 19 07:01:32 Popov systemd-networkd[502]: enp6s0: Gained carrier
Jun 19 07:01:32 Popov kernel: [38236.780145] e1000e: enp6s0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx
Jun 19 07:01:33 Popov kernel: [38237.751310] e1000e: enp6s0 NIC Link is Down
Jun 19 07:01:33 Popov systemd-networkd[502]: enp6s0: Lost carrier

Where to dig to find the reason?

Answer 1

He writes that he is losing the carrier. Is everything normal with the network at that moment? Does Google ping? Do other devices on the network fall off the Internet? What does "ip a" show for Lost packets on TX/RX?

Answer 2

The problem was at the hardware level, moving to another physical server solved the issues with the network adapter falling.