There were couple of changes introduced to the cloudStack VPC feature: 1) Added global config parameter + new resource limit for account/domain controlling maximum number of VPCs account/domain can have. 2) Added global config parameter controlling max number of Guest networks per VPC
All the code is in asf/vpc branch in case someone wants to review them. I've updated the related functional spec (http://wiki.cloudstack.org/display/RelOps/Inter-VLAN+Routing+functional+sp ec). All the changes are highlighted in green. I've also added reference to the document reflecting the difference between cloudStack and Amazon EC2 VPC APIs. -Alena.