I can reproduce this with a VM using the emulated 'e1000e' device, and
unfortunately this is still a bug with upstream systemd code. I'll look
at fixing this upstream but for now as a workaround, I'd recommend
manually setting the mtu and ignoring the mtu from dhcp, for example by
modifying the netplan yaml as such:
network:
version: 2
renderer: networkd
ethernets:
eno1:
dhcp4: yes
dhcp4-overrides:
use-mtu: false
mtu: 9000
** Also affects: systemd (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: systemd (Ubuntu Groovy)
Importance: Undecided => Medium
** Changed in: systemd (Ubuntu Focal)
Importance: Undecided => Medium
** Changed in: systemd (Ubuntu Eoan)
Importance: Undecided => Medium
** Changed in: systemd (Ubuntu Bionic)
Importance: Undecided => Medium
** Changed in: systemd (Ubuntu Groovy)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Focal)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Eoan)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Bionic)
Assignee: (unassigned) => Dan Streetman (ddstreet)
** Changed in: systemd (Ubuntu Groovy)
Status: New => In Progress
** Changed in: systemd (Ubuntu Focal)
Status: New => In Progress
** Changed in: systemd (Ubuntu Eoan)
Status: New => In Progress
** Changed in: systemd (Ubuntu Bionic)
Status: New => In Progress
** Tags added: seg
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1881207
Title:
systemd-networkd brings eno1 up and down repeatedly
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1881207/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
