i'm thinking about fault tolerant in active network, the following is my thinking Since active network is to allow network to provide computation platform, the user can input the program ( application specific customerised program) to the active network and let the nodes to perform computation, is there anyone outthere is doing fault tolerant application. Secondly, can mpls consider to be active network, if it is not can it be possible to make it to be one. i know there are three applications in MPLS & they are vpn, cos & traffic engineering. Are they considered to be application specific customerised program in active network.. Appreicate anyone gives me some ideas Cheers Sam Sita Equant Operation Fault Management Unit Phone : 61-02-92401408 CVN : 72391408