Sometimes network interface autonegotiation doesn’t work as well as it should. Luckily, you can fix it with systemd-networkd. 🔧
My OpenStack cloud depends on Ubuntu, and the latest release of OpenStack-Ansible (what I use to deploy OpenStack) requires Ubuntu 16.
Switching to systemd-networkd for managing your networking interfaces makes things quite a bit simpler over standard networking scripts or NetworkManager.
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I’ve written about systemd-networkd in the past and how easy it can be to set up new network devices and tunnels.