Hi Marco, from the ITCA perspective, we don't have an agent that can be installed on networkdevices. The great Advantage of ITCA is, that you can add any Information you want from external data source. That is the way to get the inventory Information from that devices and store it in the MDB.
That can be done by running a script that gather the SNMP Information, convert the data into xui or mif Format, so that the asset-collector can read it. That is the general way.
And one way to archive this, is the usage of some utilities from the CCS part of the ITCA installation. If you have installed CCS, you will find the utilities under: x:\Program Files (x86)\CA\SC\CCS\WVEM\BIN. (SNMPGET.EXE, SNMPWALK.EXE, TNG_SNMP.DLL)
Hope that will help a Little bit.
Rgds Thomas