Product : AppScale, Eucalyptus/Current, 4.4.5
Feature : VM Security Groups, Networking, Infrastructure Services
Content Owner:  John Gallucci
Summary
Instances can be added to a security group which has a specific network security policy applied to it.
Details
http://docs.eucalyptus.cloud/eucalyptus/4.4.5/index.html#user-guide/networking_security.html