Run the following command to view interface information: display interface <interface-type> <interface-number> The output includes interface rate, module type, link status (the state being UP is a prerequisite for normal operation) and traffic statistics, which can be used for. When the optical module on an interface is faulty, you can run the display commands to view information about the optical module. Customers in the use of optical modules will more or less encounter a variety of failure problems, such as optical module model selection is correct, the use of jumper is correct and some common problems, customers have the ability to judge and have a clear solution, but for some of the use of. Is this related to DS110DF111? How can it be solved I wouldn't expect repeated insertion/removal of the optical module to. This command is powerful, directly show you the optical module send （ TX ） and receive （ RX ） optical power value, also with a health range （ high / low threshold ）. Current RX Power < Default RX Power Low Threshold： Symptoms : The port is not UP, or UP but lost.
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