| A | B |
|---|
| ASYNC | Support for synchronous PPP such as dial in modems |
| Asynchronous Transfer Mode Data Exchange Interface | A protocol that connects a synnchronous port on a router that connects to an ATM network |
| Driver | a software program that enable a network device to communicate at the physical and data link layers |
| Ethernet II | a version of the ethernet data transport system that is used at the data link layer |
| Fiber Distributed Digital Interface | a lan interface similar to token ring that uses two ring, run over optical fiber cable and achieves bandwidths of 100 Mbps |
| Frame Relay | a WAN protocol that offers connectionless service |
| ISDN BRI | a WAN interface that connects a router directly to an ISDN BRI |
| ISDN PRI | a Wan interface that connects a router directly to an ISDN PRI line |
| Point to Point Protocol | a protocol for connecting two routers over a point to point link which may be switched or dedicated |
| Standard | a Nortel proprietary HDLC based WAN protocl for connection two routers over a dedicated point to point link |
| Switched Multimegabit Data Service | A WAN protocol that features small cells |
| Synchronous | A WAN interface that connects a router to a T1 or lower speed line |
| Token Ring/IEEE 802.5 | a LAN interface |
| X.25 | an older WAN protocol largely supercede in the US by frame relay |
| Link Access Procedure Balanced | a WAN protocol that encapsulates X.25 packets in IP so that they can be routed across the X.25 network, also supports IPX |
