Goal
- packet switched network which supports real-time applications (ISPN)
applications are divided into adaptive versus rigid, tolerant versus intolerant
(ISDN is mentioned as an intermittent form of digital network but used for telephony) - preschedule services, packet delay bound known a priori
- support of guaranteed and predicted service (statistical, dynamic)
(Motivating observation: video applications can drop frames, audio conversations can introduce small silence in case of increasing delay times, ...)
- service interface communicating quality of service the network can deliver to end host and traffic requirements of end host to routers for resource allocation
- packet scheduling algorithms meeting service commitments, algorithm supported by additional scheduling information in packet header
Guaranteed Traffic characterized by token bucket filter
Techniques: FIFO, Weighted FQ, ...
Assumption that flows are well-behaved
No discussion on gradual deployment
I got lost in the middle of the paper in technical details.
2 comments:
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