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RFC 2474: IP ToS field replaced by Differentiated Services (DS) field RFC 3168: Remaining bits assigned for explicit congestion notification RFC 2780/RFC 3260 clarifies semantics of DS field RFC 3289 defines the DiffServ MIB and “Dscp” textual-convention DiffServ mandates certain per-hop behaviors; but only recommends DSCPs DiffServ WG recommends strongly against “DSCP masks” Related DiffServ Efforts |