3. Inelastic traffic problems o Difficult to meet requirements on network with variable queuing delays and congestion Need preferential treatment o Applications need to state requirements t Ahead of time(preferably)or on the fly Using fields in IP header Resource reservation protocol o Must still support elastic traffic u Deny service requests that leave too few resources to handle elastic traffic demands 55 3. Inelastic Traffic Problems Difficult to meet requirements on network with variable queuing delays and congestion Need preferential treatment Applications need to state requirements ◼ Ahead of time (preferably) or on the fly ◼ Using fields in IP header ◼ Resource reservation protocol Must still support elastic traffic ◼ Deny service requests that leave too few resources to handle elastic traffic demands