Patent ID: 6748435
Filing Date: 2004-06-08
Classification: H04L

Abstract:
A traffic conditioner for a network system that routes a plurality of data packets, each having one of a first, a second and a third priority level, from an upstream domain to a downstream domain, comprising:a rate generator that generates tokens at a token rate; a token receiver connected to said token generator that contains n tokens where n is between 0 and N; a token level indicator connected to said token receiver and having a plurality of states based upon the number of tokens n in said token receiver, wherein at least one of said states is a promotion state; and a data packet remarker, connected to said token level indicator, that promotes at least one of said data packets having said second priority level to said first priority level when said token level indicator is in said promotion state, wherein said second priority level is used exclusively for said data packets that previously had said first priority level and were demoted.