IP Differentiated Services

• Only building blocks, no fully defined services

• Works with IPv4

• Services: leased-line emulation("premium service"), frame-relay emulation ("assured service"), CoS (Class-of-Service)

• Only data-plane building blocks defined: traffic conditioners, Per-hop Behaviors (PHBs)

• Critique: control-plane components undefined (contenders: RSVP, COPS, SNMP, MPLS, L2TP)

Previous slide

Next slide

Back to first slide

View graphic version