Open Source Inventory System [closed]
Solution 1:
I'm not sure if there is such an open-source tool but there is a rack plugin for GLPI which has a lot of nice features to manage racks.
OTOH, I've recently discovered GestioIP which seems to be a great (and automated) open-source tool to manage ip addresses and VLANs. GestioIP can automatically update the networks against OCS inventory, providing easy integration, among other nice features.
Solution 2:
You don't want OCSinventory?
Then try FusionInventory