I am doing some research on bandwidth/user requirement, so as to justify = to the management whether we should get a full T1 or fractional T1, I = did some search in the archive and I came across this link: http://www.networkmagazine.com/article/NMG20000426S0025/2=20 It has a formula says: Bandwidth =3D 8 x N x K x M =F7 (K x P + T) bits/sec=20 Anybody used this formula, and what it means in plain Englinsh. Thanks _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]