Service Entities
Page 36 7750 SR OS Services Guide
Customers
The terms customers and subscribers are used synonymously. The most basic required entity is the
customer ID value which is assigned when the customer account is created. To provision a service,
a customer ID must be associated with the service at the time of service creation.
Service Access Points (SAPs)
Each subscriber service type is configured with at least one service access point (SAP). A SAP
identifies the customer interface point for a service on an Alcatel-Lucent SR-Series router
(Figure 6). The SAP configuration requires that slot, MDA, and port/channel information be
specified. The slot, MDA, and port/channel parameters must be configured prior to provisioning a
service (see the Cards, MDAs, and Ports sections of the 7750 SR OS Interface Configuration
Guide).
A SAP is a local entity to the 7750 SRand is uniquely identified by:
• The physical Ethernet port or SONET/SDH port or TDM channel
• The encapsulation type
• The encapsulation identifier (ID)
Depending on the encapsulation, a physical port or channel can have more than one SAP
associated with it. SAPs can only be created on ports or channels designated as “access” in the
physical port configuration. SAPs cannot be created on ports designated as core-facing “network”
ports as these ports have a different set of features enabled in software.
Figure 6: Service Access Point (SAP)
OSSG002
Customer
27
IP/MPLS Network
SAP
3/1/6
dot1q
SAP
2/2/3
dot1q
Service
Cust-27
SDP
ALA-A
Customer
27
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