NEC iPASOLINK EX Advanced, Instruction Manual

Page: 477 / 793

8-158 Set ETH Function
GGS-000547-01E
iPASOLINK EX Advanced:
S
ET
N
ETWORK AND
S
YSTEM
P
ROVISIONING
Figure 8-216 Egress Queue (example: 1xSP+3xDWRR)
Scheduling Mode 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.
DWRR Weight 1
to
127
Set the priority for DWRR Scheduling Mode. This parameter is disabled
when the
Scheduling Mode selects SP .
Queue Length 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.
WTD Yellow TH 10
to
100
Specifies the WTD (Weighted Tail Drop) threshold value to the color
yellow. [unit: %; default:
100 ]
WRED Yellow TH 10
to
100
Specifies the WRED (Weighted Random Early Detection) threshold value
to the color yellow. [unit: %; default:
70 ]
WRED Green TH 10
to
100
Specifies the WRED (Weighted Random Early Detection) threshold value
to the color green. [unit: %; default:
70 ]
Table 8-41 Number of Queue Setting Options (2 of 2)
Parameter Value Description
Table 8-42
State [M byte] Range of Value
2
16
to
1024
16
16
to
16384
64
16
to
165536
Class0
WTD Yellow Frame
Threshold 70% (default)
Queue Length (16 – 1024 kbytes)
Class1
Class3
Class2