Public bug reported:
In Ubuntu 19.10, I have a netplan config like so: 2x gigabit and 1x 10g
interface. 10g interface has several vlans. 1ge interfaces and xg vlans
are placed into bridges. For example, WAN and LAN are bridged to ge
interfaces in case 10g switch fails, then WAN and LAN will at least work
when plugged directly into server.
If I make a change to the config, I can run `netplan generate` and
`netplan apply` while system is running to update my network
configuration. However, if I run a similar (same?) config under Ubuntu
20.04, I receive the following error when running `netplan apply`:
['xg0', 'br10', 'br20', 'br200', 'xg0.20', 'xg0.181', 'xg0.180', 'xg0.10',
'xg0.200', 'xg0.182']
Cannot find unique matching interface for xg0: {'macaddress':
'00:02:c9:52:7a:8e'}
The config does run correctly the first time during boot! So it seems
netplan now incorrectly picks up the VLAN interfaces (with same MAC) or
a virtual bridge interface as a physical interface??
** Affects: netplan.io (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "19.10 configuration, 20.04 config is similar"
https://bugs.launchpad.net/bugs/1945584/+attachment/5529331/+files/netcfg-19.10.yaml
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https://bugs.launchpad.net/bugs/1945584
Title:
netplan regression 19.10 to 20.04 LTS
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