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WRED functionality

WRED functionality

Created: Aug 14, 2019 06:01:06Latest reply: Jun 9, 2021 17:54:30 523 2 24 0 0
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Hi Friend

Please help to resolve the quary :


1) what is WRED .

2) Weighted Random Early Discard (WRED) has been configured on a WAN link.What are the benefits

of applying WRED to this connection.


Regards


WRED functionality

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chenhui
Admin Created Aug 14, 2019 06:25:18

@yogijain Hi,
WRED is a congestion avoidance mechanism used to drop packets before the queue overflows. WRED resolves TCP global synchronization by randomly dropping packets to prevent a burst of TCP retransmission. If a TCP connection reduces the transmission rate when packet loss occurs, other TCP connections still keep a high rate for sending packets. The WRED mechanism improves the bandwidth resource usage.

To learn more, please refer https://support.huawei.com/hedex/hdx.do?docid=EDOC1100075471&id=feature_0021577575&text=Congestion%252520Avoidance&lang=en
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chenhui
chenhui Admin Created Aug 14, 2019 06:25:18

@yogijain Hi,
WRED is a congestion avoidance mechanism used to drop packets before the queue overflows. WRED resolves TCP global synchronization by randomly dropping packets to prevent a burst of TCP retransmission. If a TCP connection reduces the transmission rate when packet loss occurs, other TCP connections still keep a high rate for sending packets. The WRED mechanism improves the bandwidth resource usage.

To learn more, please refer https://support.huawei.com/hedex/hdx.do?docid=EDOC1100075471&id=feature_0021577575&text=Congestion%252520Avoidance&lang=en
View more
  • x
  • convention：
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andersoncf1
andersoncf1 MVE Author Created Jun 9, 2021 17:54:30

good answer
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  • x
  • convention：
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