Integrated Services
High-speed networks have enabled new applications
- they also need “deliver on time” assurances from network
Applications that are sensitive to timeliness of data are called real-time applications
- voice, video, industrial control, stock quotes, …
Timeliness guarantees must come from inside the network
- end-hosts can not correct late packets like they can correct for lost packets
Need more than best-effort
- IETF extensions to best-effort model