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2.1.2 GPON Service Scenarios
The OLT system supports the following Ethernet services over GPON:
N:1
Multiple Clients using the same Service Tag
Traffic Forwarding based on the S-TAG+DMAC
1:1
Unique S-TAG or S-TAG+C-TAG per Client Service
Traffic switching based on S-TAG+C-TAG or S-TAG
Transparent LAN Services (TLS)
The traffic is not processed
The CPU is not part of the EVC
Can be use 1:1 and N:1 topology
2.1.2.1 N:1 Services
2.1.2.1.1.1 Unicast Unstacked Services
Forwarding is based on S-VID+DMAC (e.g. Residential Gateway MAC Address).
Default GEM Port Transports Unicast Unknown, Multicast and Broadcast MAC Addresses
Multicast Services only have the Default GEM
OLT
ONT
S-VID101
MAC
Table
Subscriber
GEM ID 11
Default GEM
S-VID101
A
GEM ID 12
Default GEM
S-VID101
B
GEM ID 13
Default GEM
S-VID101
C
GEM ID 11
GEM ID 12
GEM ID 13
Default GEM
RG
RG
RG
Figure 2-3: N:1.-Unicast Unstacked Services
Содержание OLT 769401
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