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Severe congestion handling and relation to other congestion notification proposals RMD basic functions: Admission control: done by QoS-NSLP signaling Severe congestion control: Based on refresh messages Based on DSCP re-marking (fast, preferred solution) The number of additional DSCP’s required for severe congestion handling is limited to16. Once ECN is defined for real-time traffic it can be used for severe congestion indication, two related proposals: RT ECN (draft-babiarz-tsvwg-rtecn-04.txt) and CL PHB (draft-briscoe-tsvwg-cl-phb-00.txt, draft-briscoe-tsvwg-cl-architecture-00.txt ) RMD needs proportional marking |