Re: IP & TCP Precedence


Mills@UDEL.EDU
Wed, 6 Jan 88 0:36:07 EST


Jim,

The fuzzball implementation supports TOS in IP and transport-level clients.
The mapping is controlled by arguments to the IP function calls. TOS is
interpreted by the queueing discipline as a priority, so that all IP packets
with a TOS octet value of x are serviced before any TOS with value x-1. There
are additional features for fairness and even a lie or two. The scheme should
not be considered as conforming to specification, but as an experiment in
queueing disciplines driven by pragmatic considerations. The NSFNET Backbone
presently supports this discipline, which is currently in evaluation.

Dave



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