Restricted EVLANs are the host-facing VLANs that carry EVLAN traffic downstream to the hosts.
There are two types of restricted EVLAN, solitary-restricted and group-restricted. The main difference between the two types is whether or not the ports within the restricted EVLAN can communicate with each other.
Solitary-restricted EVLAN. This type of EVLAN isolates the ports within a restricted EVLAN, preventing them from communicating with each other. Because this type of EVLAN isolates its member ports, a single solitary-restricted EVLAN is sufficient for a given EVLAN domain.
Group-restricted EVLAN. This type of EVLAN allows communication between its ports. Isolation between multiple group- or solitary-restricted EVLANs is maintained. There can be multiple group-restricted EVLANs in a given EVLAN.