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Serial Port Is Printing the Error Message "lsw flush" All

Created: Dec 24, 2018 11:23:12Latest reply: Feb 5, 2019 07:18:44 788 3 7 0 0

Serial Port Is Printing the Error Message "lsw flush" All the Time

Symptom

The customer reports that the serial port on the newly delivered U1930 is printing error messages "lsw flush" and "phy 1 is invalid" all the time, which affects the configuration, as shown in the following figure.

Possible Cause

According to the messages, the error is related to the LAN switch. The fault is caused by network problems. Ask the customer to check the network. The customer finds that no network cable is connected to the U1930.

Solution

Ask the customer to connect the device to a switch through an Ethernet cable. The alarm information printing stops and the fault is rectified.

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Nicholas.Guldan.Lee

Created Dec 29, 2018 14:09:57

The fault is caused by network problems ,need network team support to support

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Steve001 Created Dec 30, 2018 15:43:07 (0) (0)
yes，“lsw flush” means the there are very large flow access to the port connected to LSW ，it may be Broadcast Storm

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johnfish

Created Feb 5, 2019 07:18:44

excellent knowledge

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