I have been reading NANOG posts for probably 2 years now.. this is my 1st post. I need help with a reality/sanity check. Traceroute is a good tool for checking for routing type problems (loops). Does anyone feel it's a good tool to use for testing "bandwidth".... My obvious answer is it isn't a good tool for that.... One problem I see is that the way traceroute works, if a transport mixes media between say Ethernet to LANE and back to Ethernet you give room for Destination unreachable responses from a trace route because you have to to packet switching medias with a fast cell switched media in between.... packets less than 64k (like traceroute info) are easily lost in the conversion from ethernet to LANE. Does this sound right? Thanks, Paul A. Bradford