System Flux Threshold for Load HO

Parameter Name

System Flux Threshold for Load HO

Description

System flux thresholds correspond to the system flux obtained based on message packets, CPU load, and FID queuing load. The system flux level is the current flux control level of the system.

0-11: There are 12 flow control levels. Where, 0 indicates the lowest level and 11 indicates the highest level.

A load handover is allowed only when the system flux is lower than the value of this parameter. The handover performed over the maximum threshold may have tremendous impacts on the system. Thus, this parameter should not be set to a higher value. 1) The flow control level algorithm for the assigned system messages: [(Average Message Usage - Inner Flow Control Discard Begin Threshold)/(Inner Flow Control Discard All Threshold - Inner Flow Control Discard Begin Threshold) x 100]/10+1 (round-down for division operation). If the value is smaller than Inner Flow Control Discard Begin Threshold, Level 0 is used. If the value is equal to or greater than Inner Flow Control Discard Begin Threshold, the level is calculated. The value range is from 0 to 11.

2) Flow control threshold for the CPU to start to discard the channel access messages and paging messages: 80%

. Flow control threshold for the CPU to discard all channel access messages and paging messages: 100%

. CPU usage smaller than 80% corresponds to level 0. CPU usage equal to or greater than CPU flow control threshold 80% corresponds to level 2. An increase of 5% means an increase of 2 levels. Level 10 is the highest. The level value can be 0, 2, 4, 6, 8, and 10.

GUI Value Range

[0,11]

Default Value

10

Unit

Levels

Step

-

Modification Rules

None

Configuration Policy

The value of this parameter should not be set too high. Load handover is allowed only when the system flow is lower than the setting of this parameter. Otherwise, the load on the system is increased.

Recommended Value

10

Parameter Relationship

None

BSC Feature

Handover

Parameter Class

Parameters About Radio Resources

Caution

None


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