Sounds like this is a bug in systemd, since it's what will deal with the
actual devices.
** Also affects: systemd (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1746419
Title:
bond parameters are not changed by 'netplan apply'
Status in nplan package in Ubuntu:
New
Status in systemd package in Ubuntu:
New
Bug description:
I have a yaml file as follows:
network:
version: 2
ethernets:
bonddevs:
match:
name: ens[78]
bonds:
bond0:
interfaces: [bonddevs]
parameters:
mode: active-backup
mii-monitor-interval: 1
addresses:
- 10.10.10.1/24
Say I decide that 1s is too frequent for the MII interval, and I want to
change the interval to 2s.
If I change that in the yaml, then run
# netplan generate
# netplan apply
# cat /proc/net/bonding/bond0|grep "MII Polling Interval (ms)"
MII Polling Interval (ms): 1000
In other words, the change has not been applied.
Running netplan --debug apply prints:
DEBUG:device bond0 operstate is up, not replugging
So I wondered if bringing the bond down would help. It does not:
# ip link set dev bond0 down
# netplan apply
# cat /proc/net/bonding/bond0|grep "MII Polling Interval (ms)"
MII Polling Interval (ms): 1000
However, deleting the link works:
# ip link del dev bond0
# netplan apply
# cat /proc/net/bonding/bond0|grep "MII Polling Interval (ms)"
MII Polling Interval (ms): 2000
This is counter-intuitive behaviour.
Ideally, I would like a regular netplan apply to work without deleting the
bond.
However, a changed to the docs to make this clear would be OK.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: nplan 0.32~17.10.1
ProcVersionSignature: User Name 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
Date: Wed Jan 31 05:47:42 2018
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
SourcePackage: nplan
UpgradeStatus: No upgrade log present (probably fresh install)
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