Like a standard AWS Direct Connect connection, an interconnect represents the physical connection between an AWS Direct Connect partner's network and a specific Direct Connect location. An AWS Direct Connect partner who owns an interconnect can provision hosted connections on the interconnect for their end customers, thereby providing the end customers with connectivity to AWS services.
The resources of the interconnect, including bandwidth and VLAN numbers, are shared by all of the hosted connections on the interconnect, and the owner of the interconnect determines how these resources are assigned.