I have installed openstack juno using packstack on CentOS7. I need to create a intial network. The reference in RDO quickstart https://openstack.redhat.com/Floating...

mentions creating an external network and a router but the manual installation guide

http://docs.openstack.org/juno/instal...

mentions about creating a tenant network also for instance internal communication and a router to help access the instances from the external network using flaoting IPs.

So, we need to create a tenant network? Please help me clarify this doubt. Thanks.