Dear friend!
If basic configuration information is collected at a time, it takes about 15 minutes for each NE. A maximum of 200 NEs can be collected concurrently, and it takes 300 minutes to collect basic configuration information from 2000 NEs. If traffic information is collected, 2000 NEs are polled every 30 minutes.
If you use a proxy for collection, the collection time will be longer.
Thank you!