We have almost 10000 devices in ncm and managing all devices with ncm. You know Ncm have a option in ncm summary page as config search. We had problem about searching mechanism and opened a ticket about this problem and learned there is a limitation about search result. Ncm config search lists only "1000 match". This limitation shouldn't be as this because already we have almost 10000 devices and we can't see correct result on the web console.
We search same words on the NCM application and saw that we can see correct result for same words.
