Emerging distributed multimedia applications have strin- gent performance requirements in terms of bandwidth, de- lay, delay-jitter, and loss rate. The Tenet real-time protocol suite provides the services and mechanisms for delivering such performance guarantees, even during periods of high network load and congestion. The protocols achieve this by using resource management, connection admission con- trol, and appropriate packet service disciplines inside the network. The Sequoia 2000 network employs the Tenet Pro- tocol Suite at each of its hosts and routers making it one of the first wide area packet-switched networks to provide end- to-end per-connection performance guarantees. This paper presents experiments with the Tenet protocols on the Se- quoia 2000 network including measurements of the perfor- mance of the protocols, the service received by real multime- dia applications using the protocols, and comparisons with the service received by applications that use the Internet protocols (UDP/IP). We conclude that the Tenet protocols successfully protect the real-time channels from other traffic in the network, including other real-time channels, and allow channels to continue to meet their performance guarantees, even when the network is highly loaded.