S1700 Managed Series Ethernet Switches
Web User Manual
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Table 7-6 Parameters of QoS Scheduler
Supports SP and WRR scheduler mode:
For SP mode, the switch will firstly transmit data of high priority
queue, and transmit low priority queue packets only at the finishing
time of empting high priority queue. For WRR mode, the packet that
can be transmitted for each queue per time is decided by the set
weight.
When schedule WRR, range of this hardware queue weight is 0-127.
Queue weight of 0 is scheduled with SP mode.
7.7 Simple Random Early Detection
SRED (Simple Random Early Detection) is a simple mechanism for avoiding congestion,
which randomly discards some specified color of message to actively manage queue to keep
the queue size in a reasonable level to avoid congestion.
7.7.1 SERD Profile
Click QoS > SRED> SRED Profile to view SRED Profile on switch; the configuration page is
shown as the figure below.
Figure 7-8 SRED Profile
Create a SRED Profile
Step 1 Click QoS > SRED, and then click SRED Profile in Tab.
Step 2 Click New button to open the following page.
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