I tested all these backports of 0.32; and in all cases the autopkgtests are successful (remaining failures appear to be limitations of the test infrastructure: s390x and arm64 missing modules / installed packages for wireless (iw, cfg80211) which should be addressed outside of nplan itself).
MTUs are also being applied correctly, both as the MTU specified in config for the device and as MTU provided via DHCP.
Verification-done:
xenial: 0.32~16.04.3
zesty: 0.32~17.04.1
artful: 0.32~17.10.1
I tested all these backports of 0.32; and in all cases the autopkgtests are successful (remaining failures appear to be limitations of the test infrastructure: s390x and arm64 missing modules / installed packages for wireless (iw, cfg80211) which should be addressed outside of nplan itself).
MTUs are also being applied correctly, both as the MTU specified in config for the device and as MTU provided via DHCP.