NEC iPASOLINK EX Advanced Instruction Manual page 477

8-158
Parameter
Scheduling Mode
DWRR Weight
Queue Length
WTD Yellow TH
WRED Yellow TH
WRED Green TH
Figure 8-216 Egress Queue (example: 1xSP+3xDWRR)
GGS-000547-01E
Table 8-41 Number of Queue Setting Options (2 of 2)
Value Description
SP
Specifies Strict Priority (SP) for Scheduler setting, which gives prior frame
process to target Shaper than that of DWRR specified Shaper Group.
[default]
DWRR
Specifies the Deficit Weighted Round Robin (DWRR) for Scheduler
setting. The frame process is carried out according to the weight rate
specified by the DWRR Weight value.
Selecting DWRR enables the DWRR Weight parameter on the right.
1 to 127
Set the priority for DWRR Scheduling Mode. This parameter is disabled
when the Scheduling Mode selects SP.
16 to 65536
Specifies the Egress Queue size for the Service Class. [unit: k byte;
default: 64]
 The default value is recommended for GbE Port.
 The value 128 or greater is recommended for 10GbE Port.
The available value range differs depending on the state:
When the external packet buffer is disabled, the value greater than 1024
cannot be specified.
10 to 100
Specifies the WTD (Weighted Tail Drop) threshold value to the color
yellow. [unit: %; default: 100]
10 to 100
Specifies the WRED (Weighted Random Early Detection) threshold value
to the color yellow. [unit: %; default: 70]
10 to 100
Specifies the WRED (Weighted Random Early Detection) threshold value
to the color green. [unit: %; default: 70]
WTD Yellow Frame
Threshold 70% (default)
Queue Length (16 – 1024 kbytes)
Table 8-42
State [M byte]
2
16
64
Class3
Class2
Class1
Class0
iPASOLINK EX Advanced: S
Set ETH Function
Range of Value
16 to 1024
16 to 16384
16 to 165536
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