... problem then be-comes intractable. Two models are studied for end-to-enddelay: the rate-based model and the delay-based model.In the former, the problem is intractable. In the latter, the problem ... propaga-tion delayAdditive This denotes the latency encountered on the network links. For delay-sensitiverequests, some of the links can be pruned from the graph before selecting the path.Delay jitter ... resource-based up-dates, updates are triggered whenever a certain time periodexpires. Of course, a certain minimum period is enforcedbetween successive updates.State updates increase when...