could increase the bad packet threshold on the interface optix OSN 1800

Dear friend!

This alarm means that the statistics of receiving bad packets is over the upper threshold. The alarm is generated when the octet number of bad packets detected by the Ethernet port of the board crosses the upper threshold.

Possible Causes

The data equipment on the client side sends the abnormal data packets.

The abnormal link between the client side and the Ethernet port on the board leads to the error of the data packets in transmission.

The faulty board leads to the regeneration of the signals or detection error.

Procedure

1. Check whether the data equipment on the client side is normal. If it is abnormal, remove the fault of the data equipment on the client side.

If the alarm persists, check whether the link between the client side and the Ethernet port on the board is normal.

2. Check whether the optical port mode (and the fiber mode) of the two connected Ethernet ports are consistent. If they are not consistent, replace the fiber or board to ensure that the optical port mode and the fiber type of the two Ethernet ports are consistent.

Check the fiber connector. If it is dirty, clean or replace the fiber connector.

Check whether the transmitting/receive optical power of the two connected Ethernet ports is within the permitted range. If the optical power is abnormal, take the alarm as the IN_PWR_HIGH or IN_PWR_LOW alarm for troubleshooting.

3. If the alarm persists, perform a warm reset on the faulty board through the NMS.

Thank you!