2.4 Operating System Support

Aim: What do we need from an operating system to support distributed systems?

Main Points:

Layering

An organisational principle for modular communications

Protocol techniques

Acknowedgements, timers, windows etc

Operating Systems Abstractions

Processes, threads, sockets, daemons

Basic service provided by network - variable loss, bandwidth, latency.

Need to layer other services on top.