Comment 0 for bug 1572033

Detailed bug description:
Error "Some untagged networks are assigned to the same physical interface. You should assign them to different physical interfaces." is displayed (but only for some hosts) when trying to deploy additional nodes into env using advanced network template.

Steps to reproduce:
1) enable advanced feature in Fuel
2) Create new environment
3) create a new network dedicated for ceph
fuel --env 1 network-group --create --node-group 1 --name "cluster" --release 2 --cidr "172.31.5.0/24" --vlan 504
4) upload custom network template
fuel --env 1 network-template --upload --dir ./
5) add 3 physical hosts and assign them a virt role
6) define 3 VMs on each hypervisor
for i in 19 20 22;do fuel2 node create-vms-conf $i --conf '{"id":1,"mem":128,"cpu":6,"vda_size":"200G"}' \ '{"id":2,"mem":128,"cpu":10,"vda_size":"200G"}' '{"id":3,"mem":128,"cpu":6,"vda_size":"900G"}';done

#id1 = for mongo, id2 = for controller, id3 - for LMA installed after the env is deployed (plugin is hot-plugabble)
7) Set proper IP ranges on network tabs (VLANs are already specified after the template is uploaded)
8) privison VMs via UI or via cli (fuel2 env spawn-vms 1)
9) once the new VMs are discovered assign them with Controller, and Mongo roles; add physical compute nodes and Ceph OSDs
10) Deploy changes
11) Install LMA plugin
12) enable and configure LMA plugin
13) add 3 spare VMs created in step 8 with LMA specific roles
14) deploy changes

Expected result:
Deployment of 3 additional hosts for LMA finishes successfully.

Actual result:
Deployment in step 14 fails with the following Error:
Error
Some untagged networks are assigned to the same physical interface. You should assign them to different physical interfaces. Affected:
"management", "public", "private" networks at node "node-1 (53:34)"
"management", "public", "private" networks at node "node-2 (50:b4)"
"management", "public", "private" networks at node "node-6 (fe:58)"
"management", "public", "private" networks at node "node-4 (50:ec)"
"management", "public", "private" networks at node "node-5 (53:30)"
"management", "public", "private" networks at node "node-9 (fb:90)"

All nodes mentioned in above error are only physical hosts (computes and ceph OSDs) added in step 9.

When checking network settings in Fuel WebUI VLANs are not specified anymore.

Impact:
High, the deployment cannot be finished without installing additional hosts.

Description of the environment:
Operation system:
Ubuntu 14.04
Version of components:
VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  api: "1.0"
  build_number: "570"
  build_id: "570"
  fuel-nailgun_sha: "558ca91a854cf29e395940c232911ffb851899c1"
  python-fuelclient_sha: "4f234669cfe88a9406f4e438b1e1f74f1ef484a5"
  fuel-agent_sha: "658be72c4b42d3e1436b86ac4567ab914bfb451b"
  fuel-nailgun-agent_sha: "b2bb466fd5bd92da614cdbd819d6999c510ebfb1"
  astute_sha: "b81577a5b7857c4be8748492bae1dec2fa89b446"
  fuel-library_sha: "c2a335b5b725f1b994f78d4c78723d29fa44685a"
  fuel-ostf_sha: "3bc76a63a9e7d195ff34eadc29552f4235fa6c52"
  fuel-mirror_sha: "fb45b80d7bee5899d931f926e5c9512e2b442749"
  fuelmenu_sha: "78ffc73065a9674b707c081d128cb7eea611474f"
  shotgun_sha: "63645dea384a37dde5c01d4f8905566978e5d906"
  network-checker_sha: "a43cf96cd9532f10794dce736350bf5bed350e9d"
  fuel-upgrade_sha: "616a7490ec7199f69759e97e42f9b97dfc87e85b"
  fuelmain_sha: "d605bcbabf315382d56d0ce8143458be67c53434"
Network model:
Neutron with VXLANs

Additional Information:
Diagnostic snapshot can be provided privately to an engineer working on this bug since it might contain customer specific data.

[1] reduced footprint feature: https://docs.mirantis.com/openstack/fuel/fuel-8.0/operations.html#reduced-footprint-ops