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Description of problem:
Bond mode change deactivates the profile and in some cases removes the parent VLAN

Version-Release number of selected component (if applicable):
nmstate-0.3.4-10.el8.noarch

How reproducible:
100%

Steps to Reproduce:
1. Create bond mode 4 or 1 and attach vlan tagged bridge to it
2. Set static ip on the bridge
3. Change the bond's mode to 1 or 4

Actual results:
vlan device is become unamanaged and bridge removed from the bond

Expected results:
bond mode change shouldn't deactivate the profile and should keep the parent vlan

Created attachment 1711065 [details]
Reproducer

Found bug of NetworkManager 1881318


Workaround in nmstate has been posted to upstream for review.

Upstream merged.

Verified with versions:
NetworkManager-1.28.0-0.1.el8.x86_64
nispor-0.6.1-2.el8.x86_64
nmstate-0.4.1-2.el8.noarch
DISTRO=RHEL-8.4.0-20201103.d.0
Linux hp-dl380g10-02.rhts.eng.pek2.redhat.com 4.18.0-241.el8.dt1.x86_64 #1 SMP Mon Nov 2 08:24:31 EST 2020 x86_64 x86_64 x86_64 GNU/Linux

Created attachment 1726858 [details]
verification

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (nmstate bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:1748