End-to-end quality of service usually requires a method of coordinating resource allocation between one autonomous system and another. Research consortia such as EuQoS [1] and fora such as IPsphere [2] have developed mechanisms for handshaking QoS invocation from one domain to the next. IPsphere defined the SSS signaling bus (Service Structuring Stratum) in order to setup, invoke and assure network services. EuQoS conducted experiments to integrate SIP, NSIS and IPsphere's SSS.
The Internet Engineering Task Force (IETF) defined the RSVP protocol for bandwidth reservation. RSVP is an end to end bandwidth reservation protocol that is also useful to end to end QoS. RSVP:Resource reservation protocol. The traffic engineering version, RSVP-TE, is used in many networks today to establish traffic-engineered MPLS label-switched paths.
The IETF also defined NSIS [3] (Next Steps in Signalling) with QoS signalling as a target. NSIS is a development and simplification of RSVP.
The Internet Engineering Task Force (IETF) defined the RSVP protocol for bandwidth reservation. RSVP is an end to end bandwidth reservation protocol that is also useful to end to end QoS. RSVP:Resource reservation protocol. The traffic engineering version, RSVP-TE, is used in many networks today to establish traffic-engineered MPLS label-switched paths.
The IETF also defined NSIS [3] (Next Steps in Signalling) with QoS signalling as a target. NSIS is a development and simplification of RSVP.
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