71 Resource reservation Unicast Prevention as well as reaction to congestion required e Can do this by resource reservation ◆ Unicast End users agree on Qos for task and request from network May reserve resources a Routers pre-allocate resources If Qos not available, may wait or try at reduced Qos2 7.1 Resource Reservation - Unicast Prevention as well as reaction to congestion required Can do this by resource reservation Unicast ◼ End users agree on QoS for task and request from network ◼ May reserve resources ◼ Routers pre-allocate resources ◼ If QoS not available, may wait or try at reduced QoS