Technical Summary
This document is an Reliable Multicast Transport (RMT) Protocol
Specification that builds upon the RMT Layered Coding Transport (LCT)
building block document. This specification describes a massively
scalable reliable content delivery protocol, Asynchronous Layered
Coding (ALC), for multiple rate congestion controlled reliable content
delivery. The protocol is specifically designed to provide massive
scalability using IP multicast as the underlying network service.
Massive scalability in this context means the number of concurrent
receivers for an object is potentially in the millions, the aggregate
size of objects to be delivered in a session ranges from hundreds of
kilobytes to hundreds of gigabytes, each receiver can initiate
reception of an object asynchronously, the reception rate of each
receiver in the session is the maximum fair bandwidth available
between that receiver and the sender, and all of this can be supported
using a single sender.
Working Group Summary
There is consensus in the WG to publish this documents.
Document Quality
The document is of high quality and has been subject to extensive
review in its Internet Draft and Experimental RFC forms. The
revised draft represents a small number of changes from the original
Experimental RFC 3450.
Open source implementations of the ALC protocol are available and
considerable experience in using this protocol has been accumulated.
The protocol has been adopted by the Digital Video Broadcasting (DVB)
industry consortium for content delivery.
The content of this document was already reviewed and approved for
publication as experimental RFC 3450. This document contains minor
technical modifications.
Personnel
Brian Adamson is the Document Shepherd.
Magnus Westerlund is the Responsible Area Director.