There are lots of interesting tools to collect and analyze network traffic information from protocols like Netflow, sFlow, LFAP, etc. Few of the collectors/analyzers share common data repositories, so one sets up a machine for each with its own export from each router. How are others handling this problem, particularly after hitting the limit of one or two export flows supported by most routers today? Apparently there are a number of packet reflectors (usually running on a Unix machine) that work in theory, how do these work in actual practice, what kind of performance and reliability to they have, and which work well for traffic collection? Has anyone tried using multicast or broadcast addresses or other tricks (shared IP address or MAC address on multiple machines) to share a single accounting stream across multiple collectors? Any other methods that are working for scaling multiple collectors without exceeding router limitations or burdening routers unnecessarily? Pete.