What are the limitations of RMON?
First of all, RMON suffers from the basic problems of SNMP. SNMP has always been a “checkbox” item that customers always want in their products, but which vendors don’t spend a lot of time on. Thus, basic activities work within SNMP, but it never quite reaches the hype. Likewise, while there are a ton of products out there that support RMON, they don’t always work correctly. Indeed, since RMON is so resource intensive, you will often find that heavy use of RMON crashes the remote device. Second of all, RMON is extremely resource intensive. In RMONv2, the network-layer matrix table can quickly fill up after a few moments attached to the network.
