iccrg-5----Page:11
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
|
Challenge 1: Router Support Granularity of router functions Several degrees of freedom concerning router involvement: from some few additional functions in NM procedures until additional per packet processing Different amounts and type of state can be kept in routers (no per-flow state, partial state - soft state, hard state). Additional router processing = challenge for Internet scalability that could also increase the end-to-end latencies. Example: synchronization mechanisms for state information among parallel processing entities, which are e.g. used in high-speed router hardware designs. Open issues: What granularity of router processing can be realized without affecting the Internet scalability? How can additional processing efforts be kept at a minimum? |