I'm looking for experiences with and opinions on NetScout's line of RMON probes (WAN & ATM both) or the Cisco resold versions. Currently in place are a set of legacy Visual Networks probes (ASE) and precisely what real added value the NetScouts provide is in question. It's been suggested that NetScout service may not be satisfactory so any experiences pro or con on that would also be most welcome. I can keep provided information confidential (limited to the purchasing manager and I) if requested and I'll be happy to summarize the other responses back to NANOG if there's enough response to make it useful. Recommendations of competing RMON probe manufacturers would also be very useful since the dubious claim has been made that "all the others went out of business during the crunch"... -- Thanks, Jonathan Conway rise@knavery.net