Billion BiPAC 7800NEXL User Manual page 48

Mode Parameter will be hided if you select PPPoA or IPoA in Link Type.
Encapsulation Mode: select the encapsulation mode from the drop-down menu according to the
link Type.
Service Category: select the service category from the drop-down menu to determine your service
category.
UBR without PCR: UBR(Unspecified Bit Rate), PCR(Peak cell Rate)
UBR is a kind of QoS, which doesn't provide assurance about the cell latency, the bit loss rate etc,
it is a best-effort service.
IP QoS Schedule Algorithm: select the Schedule Algorithm, SP(Strict Priority), always sends the
packets with the highest priority, WFQ(Weighted Fair Queuing), an automatically bandwidth
adjusting method, sharing the available bandwidth when congestion happens, the bandwidth is
assigned according to the priority and the weight value. Turn to the Quality of Service > Queue
Config section for more information.
Precedence of the default queue: default 8(lowest)
Weight Value of default queue: enter the value, 1-63, the highest is 63.
MPAAL Group Precedence: select the precedence identification, 1-8, the highest is 1.
UBR with PCR/ CBR(Constant Bit Rate)
UBR is a kind of service providing constant rate service, is idea for timely and fixed bandwidth
needed service.
Peak Cell Rate: enter Peak Cell Rate.
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