Campus Data Networking Architecture:
Common Elements

Inter-campus connections: SMDS appears more appropriate for scalable connections to remote sites within our metropolitan (e.g., New Bolton Center, CJS), replacing dedicated T-1 service. HUPnet is connected via a routed connection scaling from 10 Mb/sec as necessary.

Remote access: The analog modem pool continues to scale to meet demand, shifting to a combination of analog 28.8 bps, and digital ISDN lines (capable of supporting multiple protocols). Commercial access providers may supplement these pools especially for outlying areas.

Advanced networks: Penn will provide coordinating support for advanced networking initiatives that may run counter to our conventional deployments. This will likely include swifter adoption of ATM and direct Internet or vBNS connections for certain projects.

Treatment of legacy network environments: The ISN is eliminated early in 1996; asynchronous terminal server connections are completely replaced by Ethernet early in 1997. No new investments are made in 10-base-2 wire or electronics, and users are transitioned as buildings are renovated and rewired.

Miscellaneous elements:

• Network infrastructure servers are consolidated onto fewer platforms with better redundancy
• AppleTalk and IPX are routed campus-wide and access is provided for remote users
• Desktop hardware and software standards continue to evolve, as Windows 95 use surges
• PennNames, a system for creating a campus-wide unique username space, transitions to feed a DCE secure core, and client/server services (including network access) transition to Kerberos.