*** This bug is a duplicate of bug 1833671 ***
https://bugs.launchpad.net/bugs/1833671
** This bug has been marked a duplicate of bug 1833671
bond interfaces stop working after restart of systemd-networkd
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https://bugs.launchpad.net/bugs/1826387
Title:
systemd-networkd restart brings down bond slaves
Status in systemd:
Fix Released
Status in systemd package in Ubuntu:
Fix Released
Status in systemd source package in Bionic:
New
Status in systemd source package in Cosmic:
Won't Fix
Bug description:
Reported upstream as https://github.com/systemd/systemd/issues/10118
Ubuntu bionic, systemd version 237-3ubuntu10.19
When systemd-networkd is used to manage network bonds, upon systemd-
networkd, bonds are brought down for ~10 seconds affecting
connectivity to the server. From networkd logs (truncated to:
```
# journalctl -b -u systemd-networkd | grep enp3s0f
Apr 25 12:45:33 compute01 systemd-networkd[30824]: Ignoring
/etc/systemd/network/01-enp3s0f1.network, because it's not a regular file with
suffix .netdev.
Apr 25 12:45:33 compute01 systemd-networkd[30824]: Ignoring
/etc/systemd/network/00-enp3s0f0.network, because it's not a regular file with
suffix .netdev.
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Flags change:
+SLAVE +UP +LOWER_UP +RUNNING +MULTICAST +BROADCAST
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link 6 added
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: udev initialized
link
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Saved original
MTU: 9000
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Flags change:
+SLAVE +UP +LOWER_UP +RUNNING +MULTICAST +BROADCAST
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link 3 added
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: udev initialized
link
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Saved original
MTU: 9000
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link state is
up-to-date
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: found matching
network '/etc/systemd/network/01-enp3s0f1.network'
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link is not
managed by us
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Started LLDP.
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Enslaving by
'bond0'
Apr 25 12:45:33 compute01 systemd-networkd[30824]: bond0: Link 'enp3s0f1' was
up when attempting to enslave it. Bringing link down.
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Bringing link
down
Apr 25 12:45:33 compute01 systemd-networkd[30824]: bond0: Enslaving link
'enp3s0f1'
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Link state is
up-to-date
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: found matching
network '/etc/systemd/network/00-enp3s0f0.network'
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Link does not
request DHCPv6 prefix delegation
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Started LLDP.
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Enslaving by
'bond0'
Apr 25 12:45:33 compute01 systemd-networkd[30824]: bond0: Link 'enp3s0f0' was
up when attempting to enslave it. Bringing link down.
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f0: Bringing link
down
Apr 25 12:45:33 compute01 systemd-networkd[30824]: bond0: Enslaving link
'enp3s0f0'
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Flags change:
-UP -LOWER_UP -RUNNING
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Stopped LLDP.
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Lost carrier
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: State is
configuring, dropping config
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Joined netdev
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: Bringing link up
Apr 25 12:45:33 compute01 systemd-networkd[30824]: enp3s0f1: IPv6
successfully enabled
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Flags change:
-UP -LOWER_UP -RUNNING
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Stopped LLDP.
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Lost carrier
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: State is
configuring, dropping config
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Joined netdev
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Bringing link up
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: IPv6
successfully enabled
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f1: Flags change: +UP
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f1: Started LLDP.
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Flags change:
+UP +RUNNING
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Started LLDP.
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Gained carrier
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Flags change:
-RUNNING
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: Lost carrier
Apr 25 12:45:34 compute01 systemd-networkd[30824]: enp3s0f0: State is
configuring, dropping config
Apr 25 12:45:37 compute01 systemd-networkd[30824]: enp3s0f0: Flags change:
+LOWER_UP +RUNNING
Apr 25 12:45:37 compute01 systemd-networkd[30824]: enp3s0f0: Gained carrier
Apr 25 12:45:37 compute01 systemd-networkd[30824]: enp3s0f1: Flags change:
+LOWER_UP +RUNNING
Apr 25 12:45:37 compute01 systemd-networkd[30824]: enp3s0f1: Gained carrier
```
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