ALM-15794223 hwEthHalfDuplex

Description

Eth half duplex. (InterfaceIndex=[hwPhysicalPortIfIndex],InterfaceName=[hwPhysicalPortName])

The interface is negotiated to work in half-duplex mode. As a result, a large number of packets are lost.

Attribute

AlarmID	Alarm OID	Alarm Severity	Alarm Type
15794223	1.3.6.1.4.1.2011.5.25.157.2.207	Warning	Processing error alarm

Parameters

Name	Meaning
hwPhysicalPortIfIndex	Physical interface index.
hwPhysicalPortName	Physical interface name.

Impact on the System

In half-duplex mode, if bidirectional traffic is transmitted, packet loss may occur due to conflicts.

Possible Causes

Port configurations are different between the two sides (one port is set to speed force, and the other port is set to negotiation). As a result, the ports negotiate to half-duplex, and packet loss occurs, triggering a half-duplex alarm.

Procedure

Check whether the rates of the interconnected interfaces at both ends are the same. If not, change them to be the same.
Check whether the cable connection is correct. If yes, rectify the fault. Check whether the alarm is cleared.
- If the alarm is cleared, go to Step 4.
- If the alarm persists, go to Step 3.
Collect alarm, log, and configuration information, and contact Huawei technical support personnel.
End.