Description of problem:
Upgrade of a simple virt environment to the Jan 20 2016 puddle fails with timeout. Deployment shows missing network components 

Version-Release number of selected component (if applicable):
[stack@instack ~]$ rpm -qa |grep tripleo
openstack-tripleo-image-elements-0.9.6-10.el7ost.noarch
openstack-tripleo-heat-templates-0.8.6-110.el7ost.noarch
openstack-tripleo-puppet-elements-0.0.1-5.el7ost.noarch
openstack-tripleo-common-0.0.1.dev6-5.git49b57eb.el7ost.noarch
openstack-tripleo-0.0.7-0.1.1664e566.el7ost.noarch
[stack@instack ~]$ rpm -qa |grep instack
instack-0.0.7-2.el7ost.noarch
instack-undercloud-2.1.2-37.el7ost.noarch

[stack@instack ~]$ rhos-release -L
Installed repositories (rhel-7.2):
  7-director
  7
  rhel-7.2
[stack@instack ~]$ rhos-release -v
1.0.25


How reproducible:
consistent

Steps to Reproduce:
 Network isolation is enabled.
 Deployment command: openstack overcloud deploy --templates --control-scale 3 --compute-scale 2    --neutron-network-type vxlan --neutron-tunnel-types vxlan  --ntp-server 10.5.26.10 --timeout 90 -e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e network-environment.yaml

Update command: yes ""|openstack overcloud update stack overcloud -i --templates -e /usr/share/openstack-tripleo-heat-templates/overcloud-resource-registry-puppet.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e /usr/share/openstack-tripleo-heat-templates/environments/updates/update-from-vip.yaml -e network-environment.yaml -e custom.yaml


Actual results:
stack_status_reason   | Timed out

Expected results:
Updated overcloud

Additional info:

Attaching the deployment dump ([stack@instack ~]$ for i in $(heat resource-list --nested-depth 5 overcloud | grep FAILED |cut -d'|' -f3); do echo DEPL: $i; heat deployment-show $i; done > deployments.txt)