TRAFFIC QUEUEING FOR REMOTE TERMINAL DSLAMS

摘要

The provided network architecture introduces QoS into the ADN, in a manner that enables the delivery of sophisticated and demanding IP-based services to subscribers (25). The architecture utilizes a switch capable of examining and selectively forwarding packets or frames based on higher layer information in the protocol stack, that is to say on information that is encapsulated in the layer-2 information utilized to define normal connectivity through the network. The switch (19) enables segregation of upstream traffic by type and downstream aggregation of Internet traffic together with traffic from a local vertical services domain. By implementing a two-tier queuing structure in the downstream direction, traffic with a virtual circuit and traffic between the different virtual circuits that are destined for the same downstream DSLAM (17) can be prioritized according to service type and/or Internet Service Provider (11).