SERVICE
ACCESS
SUBSCRIBERS
POINTS
SAP
Customer
3/1/6
27
dot1q
SAP
Customer
2/2/2
25
dot1q
SAP
Customer
4/1/6
7
dot1q
Figure 8: GRE Service Distribution Point (SDP) pointing from ALA-A to ALA-B
7750 SR OS Services Guide
SERVICE
DISTRIBUTION
POINTS
Service
Cust-27
IP NETWORK
Cust-25
SDP-4
Service
Encapsulation
Cust-7
Service
ALA-A
SERVICE
DISTRIBUTION
POINTS
Service
Cust-27
Cust-25
DEMUX
Service
GRE
Cust-7
Service
ALA-B
Services
SERVICE
ACCESS
POINTS
SUBSCRIBERS
Customer
SAP
7
Customer
SAP
25
Customer
SAP
27
OSSG004
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