H3C S7500E Series Command Reference

5-3
When an up OLT port goes down (because the shutdown is executed on it or the fiber is unplugged),
wait at least five seconds before bringing up the port again (by using the undo shutdown command or
plugging in the fiber). This will prevent the anomalies caused by frequent ONU registrations and
deregistrations.

H3C S7500E Series Specifications

General

Brand	H3C
Model	S7500E Series
Category	Switch
Language	English