Thanks for the reply Jake, most useful... [snip] MD> Q3. What do you expect the real figures to be based upon the network MD> operating normally and what, from your experience, are they likely to be MD> under fault conditions? JK>I'm not sure I can provide an accurate answer to JK>that. There are too many variables and unknowns [to JK>me] about your network. Ah, ok... I am trying to think in generic terms. I agree with your statement though, basically it's a case of 'how long is a piece of string'. It would be interesting to know if there are any consistent properties regardless of network size and content. Perhaps CAIDA/NLANR or someone have done a study? [snip] ta, Matt. _________________________________________________________________ Join the world’s largest e-mail service with MSN Hotmail. http://www.hotmail.com