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DOCSIS / DiffServ Interactions RFC 2669 defines IP ToS + Mask for traffic classification, and defines And-Mask + Or-Mask for IP ToS overwrites DOCSIS 1.1 RFI defines IP ToS Range + Mask for traffic classification, and defines And-Mask + Or-Mask for IP ToS overwrites Cable Device MIB and Subscriber Management MIB internet-draft both used IP ToS instead of Dscp objects until recent versions Cable Device MIB defines Dscp object Subscriber Management MIB defines Dscp + Mask objects Center of controversy is over “DSCP Mask” objects DOCSIS QoS MIB seems to require IP ToS objects for DOCSIS 1.1 support Recent efforts begun to incorporate DiffServ into DOCSIS standards |