3.0 - significant spike in network packet collisions on host's eth iface

host Linux server 4.15.0-22-generic #24-Ubuntu SMP Wed May 16 12:15:17 UTC 2018 x86_64 GNU/Linux

Having even only one unprivileged container (OS does not make a difference) a significant spike in network packet collisions on the host’s eth iface is noticable and subsequent network performance degradation.

Starting more containers is worsening the situation.

Is there a way to remedy the issue or perhaps debug where the collisions originate from?

Turned out that on the host, being a VPS, its NIC driver rtl8139 been the root cause of the collisions. Having it had switched to virtio solved the matter.

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