Cost-effective ways to increase access: FDDI and APPN
Fiber Distribution Data Interface (FDDI)
- 100 Million bits/second
- Fiber connections enable larger geographic dispersion
- Stations can attach directly to a ring or through a concentrator
- Can connect to both the primary and secondary ring simultaneously
Advanced Peer-to-Peer Networking (APPN)
- Programs capable of comunicating with other programs running on other machines on the network can be automatically set in session with each other.
- Network nodes know all APPC resources in both themselves and in end nodes
- Each network node maintains a topology database of APPC resources and available routes through the network.