Hi, We colocate with our upstream, so we (thankfully) don't have to deal with Bell Atlantic for our main Internet connection. We are currently running a 10Mb ethernet link to our provider, but our contract allows for more than that should we ever need it. Since the Bay ASN we now use will soon be history and will be replaced by a shiny new(?) Cisco, I'm thinking of upgrading the link now rather than later. We have a choice of FDDI or 100Mb ethernet. I'm thinking FDDI is better, and not too much more expensive for our side. Are there any negatives with FDDI? How does the 4000(?) Byte MTU affect things? All of our outgoing links, T1 and ether are all 1500. Does the work of fragmenting the packets down to 1500 amount to anything? All this talk about MTUs has got me wondering. Thanks, Charles ~~~~~~~~~ ~~~~~~~~~~~ Charles Sprickman Internet Channel INCH System Administration Team (212)243-5200 spork@inch.com access@inch.com