Differences Between a Cross-Over Cable and a Leased Circuit

Differences Between a Cross-Over Cable and a Leased Circuit

If you install an Ethernet cross-over cable between two routers and plug the cable into some type of Ethernet interface on the routers, the two routers can forward Ethernet frames to each other. If you install a WAN link between two routers, the telco does create something similar to a cross-over cable, but a few details are different. In case you're wondering, there are lots of legitimate reasons for doing things differently for leased circuits, most of which have to do with supporting the service over a large and varied telco network.