The Adaptive Load Service (ALS): An ABR-Like Service for the Internet

In this paper, we present a novel approach for realizing adaptive QoS control in the Internet called the adaptive load service (ALS). ALS was designed in a similar fashion to the available bit rate service (ABR) proposed for ATM. That is, the senders transmit control messages indicating their requirements, intermediate routers adjust the indicated values in accordance with their available resources and the receivers send the contents of the control messages back to the senders. The transmission behavior of the senders is then adjusted in accordance with the indicated values in the returned control messages. Unlike ABR, ALS is IP-based and was designed to scale for large multicast groups and accommodate the needs of heterogeneous receivers through the integration of sender-based and receiver-based adaptation mechanisms in addition to relying on the network feedback for adjusting the transmission behavior. Performance tests of ALS under different simulation topologies show its efficien...

• Type: Conference
• Year: 2000
• Where: ISCC
• Authors: Dorgham Sisalem, Henning Schulzrinne
• Keywords: Communications, Control Messages, Indicated Values, ISCC 2000, Transmission Behavior