In the past the bandwidth of peering connections has been high - 10Mbs or 100Mbs - although of course the switching may have had problems at some NAPs. With transit you pay by bandwidth so all these interconnect bandwidth are likely to be minimised rather than "optimised". Bill U-NET Ltd "Easy Internet Access" mailto:bill@u-net.net http://www.u-net.net/ Tel 01925 484444 Fax 01925 484466