Have you considered using a basic zone? With security groups you can have *lots* (thousands of) with very small L2 networks.
On 4/8/13 10:28 PM, "Justin Grudzien" <grudz...@gmail.com> wrote: >My team has been working for three weeks with CloudStack architecture >design and we are struggling to put together a network architecture that >we feel will scale. From everything I can tell, CloudStack requires a a >very large layer 2 network when using shared guest networks. We are >looking to deploy almost a thousand physical hosts across 25 cabinets >with over 4000 VMs in the next 18 months and having a broadcast domain >this large feels problematic. > >How have others solved this problem? I don't have a need or a desire for >isolation and even if I had 100 guest networks I would still have to tag >their VLANs into every host port. There doesn't seem to be a way to tie a >network to anything smaller than a zone. > >One solution we are looking into is Cisco's 1000v and utilizing VXLANs. >This will allow us scale down the broadcast domains. I don't think >CloudStack has support in configuring their VXLAN settings? Any comments >or suggestions would be appreciated. > >Justin
