PLANET EPL-1000 - Manual (Page 35)

4.2 DBA
The DBA tab allows the user to control virtually every parameter of the TK3721’s highly
flexible and efficient Hierarchal Weighted Round Robin DBA algorithm. The DBA algorithm
supplied with the OLT is similar to algorithms found in high performance ATM switches and
is capable of issuing 4 grants every 282 micro seconds, by far the fastest cycle time of any
EPON system deployed today. The TK3721’s DBA can meet 1 ms. Latency requirements
for high priority services in a 32 ONU deployment.
4.2.1 Broadcast SLA
This command is identical to the functionality of the Link SLA Panel except that it is used to
provision an SLA for the broadcast channel, as apposed to a unicast link. This unique
feature of the OLT allows the OLT To use its large 40Meg buffer ram to serve the
requirements of all ONUs, resulting in a 1:32 cost reduction (assuming 32 ONU
deployment).
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