DCII 21.11.08

today we looked at intserv and diffserv - an interesting resource to control in the context of 21t century concerns is energy - an excellent paper introducing a well evaluated set of techniques for doing this is by folks from Intel and Berkeley on Reducing network energy consumption via sleeping and rate-adaptation - the same techniques are also being applied in the context of servers (cpu and storage) in data centers - integrating all of the above would be a good thing - the gains (cost saving) can be large (estimates are that we waste more than 50% of power in servers and networks and that the total contribution to world energy consumption is between 2 and 4% - saving half of that with simple techniques is obviously worth doing:)