Symptom
The LQMD board of the OptiX OSN 6800 connects to the router C4507 of C company. The ordinary ADSL service is fine but the enterprise ADSL service has anomalies. The enterprise user fails to access the Internet.
Cause analysis
Comparison between the ordinary ADSL service and enterprise ADSL service shows that the enterprise ADSL service has an extra user tag. Normally, the maximal packet length setting of enterprise ADSL service is not the same as that of the ordinary ADSL service.
Procedure
The maximal packet length of the OptiX OSN 6800 is 1518. The problem is solved when the maximum packet length is changed to 9600.
Reference Information
The level of the enterprise ADSL service is higher than that of the ordinary ADSL service.