Packstack completion OK (ML2&OVS&VXLAN).
Network node configuration.
1) Attempt to add internal interface to router works only via Neutron CLI.
2) Attempt to launch Cirros VM on compute node shows up following errors :-

info: initramfs: up at 1.18
GROWROOT: CHANGED: partition=1 start=16065 old: size=64260 end=80325 new: size=41913585,end=41929650
info: initramfs loading root from /dev/vda1
info: /etc/init.d/rc.sysinit: up at 2.25
info: container: none
Starting logging: OK

modprobe: module virtio_blk not found in modules.dep <===
modprobe: module virtio_net not found in modules.dep <===
WARN: /etc/rc3.d/S10-load-modules failed <===

Initializing random number generator... done.
Starting acpid: OK
cirros-ds 'local' up at 3.06
no results found for mode=local. up 3.23. searched: nocloud configdrive ec2
Starting network...
udhcpc (v1.20.1) started
Sending discover...
Sending discover...  

Thanks.
Boris