
Chapter 4: Feature Description
Ethernet Features
Figure 44 Management Service and its Service Points
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Service Access Point (SAP) Service Point – An SAP is equivalent to a UNI in MEF terminology
and defines the connection of the user network with its access points. SAPs are used for Point-
to-Point and Multipoint traffic services.
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Service Network Point (SNP) Service Point – An SNP is equivalent to an NNI or E-NNI in MEF
terminology and defines the connection between the network elements in the user network.
SNPs are used for Point-to-Point and Multipoint traffic services.
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The following figure shows four network elements in ring. An MP Service with three service
points provides the connectivity over the network. The SNPs provide the connectivity among
the network elements in the user network while the SAPs provide the access points for the
network.
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