IES

Internet enhanced service

IES is a routed connectivity service in which a host communicates with an IP router interface to send and receive Internet traffic. An IES has one or more logical IP router interfaces, each with a SAP that acts as the access point to the network. IES allows customer-facing IP interfaces to participate in the same routing instance that is used for core network routing. The IP addressing scheme for a customer must be unique among the provider addressing schemes in the network and possibly in the entire Internet.

The usable IP address space may be limited. A portion of the service provider address is reserved for service IP provisioning and allows administration by a separate but subordinate address authority.