Question : PPPOE versus Frame Relay or RFC1483

I was just wondering if there are any advantages of using PPPOE versus Frame Relay or RFC1483 for a business DSL line.  We currently have business DSL lines at our remote locations.  Most of them are configures with Frame Relay or RFC1483.  A few are configured with PPPOE.  We are also using 2 different providers.  One provider uses PPPOE and the other uses Frame Relay and RFC 1483.  

I noticed that the lines configured with Frame Relay and RCF1483 have WAN IP addresses configured on the interface that connects to the ISP.  We are then allocated a subnet of addresses that we can use.  There is no IP address on the interface connected to the ISP when PPPOE is configured.  Although we still have a subnet of addresses allocated to use.  I was just wondering if there are any pros and cons of using PPPOE versus Frame Relay or RFC1483.  We are planning to stick with only one ISP, so I have to determine which technology would be better to have.  Thanks for your help.

Answer : PPPOE versus Frame Relay or RFC1483

Frame Relay is your better option!  This is a well established, universally supported technology with many congestion and traffic managment features (although most a rarely used).  PPPOE generally indicates an ISP is late to market and has an underdeveloped infrastructure, that the PPPOE makes up for by auto assigining framed routes/translation in the core routers by identifying yourself to the system via username/logon.