Alcatel-Lucent 7210 SAS-X - Internet Enhanced Service; IES Service Overview; Figure 52: Internet Enhanced Service

IES Service Overview
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IES Service Overview
Internet Enhanced Service (IES) is a routed connectivity service where the subscriber
communicates with an IP router interface to send and receive Internet traffic. An IES has one or
more logical IP routing interfaces each with a SAP which acts as the access point to the
subscriber’s network.
IES allows IP interfaces to participate in the same routing instance used for service network core
routing connectivity. IES services require that the IP addressing scheme used by the subscriber be
unique between other provider addressing schemes and potentially the entire Internet. While IES is
part of the routing domain, the usable IP address space may be limited. This allows a portion of the
service provider address space to be reserved for service IP provisioning, and be administered by a
separate, but subordinate address authority.
IP interfaces defined within the context of an IES service must have a SAP associated as the uplink
access point to the subscriber network. Multiple IES services are created to segregate subscriber
owned IP interfaces.
Figure 52: Internet Enhanced Service
The IES service provides in-band management connectivity. Other features include:
• Multiple IES services are created to separate IP interfaces.
• More than one IES service can be created for a single customer ID.
• More than one IP interface can be created within a single IES service ID. All IP interfaces
created within an IES service ID belong to the same customer.
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Subscriber
Network
Internet
ALA-1
SAP