For some time I've been trying to get a simple FR point-to-point link to work in a lab over a back-to-back cable. I had different DLCIs configured on the two subinterfaces on opposite ends of the link, and the DTE end always indicated that the PVC h...

I have two routers (2610XM and 2621XM) connected to each other via V.35 DCE/DTE, and I'm trying to configure a Frame Relay connection over this (along with two other routers, but first things first). However, I can't keep the link up. The DCE end i...

I'm teaching myself routing preparatory for the CCNA exam, and I have what should be a basic question: how do I configure PPP and/or HDLC on a router's serial subinterface?. I have some routers, but a shortage of serial cables, in a home lab. I do...