Command Manual – Port 
Quidway S8500 Series Routing Switches  Chapter 4  RPR Port Configuration Commands
 
Huawei Technologies Proprietary 
4-26 
value: Node weight. The default value is 1. 
Description 
Use the rpr weight command to configure the node weight. Fairness algorithm uses 
node weight to calculate local fairness rate. The default weight is 1. 
Use the undo rpr weight command to restore the default weight. 
The fairness algorithm calculates the local fairness rate based on the node weight 
value. By default, the weight value is 0. In fact, the weight value configured here is the 
N
th
 power of 2, namely weight = 2 
value
, where value ranges 0 to 7. Therefore, the value 
range of weight is 1 to 255.  
Example 
# Set weight of nodes on ringlet0 to 2. 
<Quidway> system-view  
[Quidway] interface RPR2/1/1 
[Quidway-RPR2/1/1] rpr weight ringlet0 2 
4.1.26  sdh threshold  
Syntax 
sdh threshold {sd-ber value | sf-ber value } 
undo sdh threshold { sd-ber | s-ber } 
View 
RPR POS physical port view 
Parameter 
sd-ber: Threshold for signal degrade (SD BER). 
sf-ber: Threshold for signal failure (SF BER). 
value: Threshold index, in the range of 3 to 9. That is the alarm threshold is 10e
-
value. 
Description 
Use the sdh threshold command to configure the thresholds for SD and SF. By default, 
SD BER is 6, and SF BER is 3. 
Use the undo sdh threshold command to restore the default configuration. 
The alarm information configured by this command is the overhead in SDH frame 
header, which monitors SDH signals at each layer. 
Example 
# Set SD threshold for RPR POS physical port to 10e-6.