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This paper has two original and important proposals: a) the self-similarity (S2) traffic filter for real-time applications and b) the R2-FLC (reconfigurable real-time fuzzy logic controller) for on-line dynamic buffer size tuning. Inclusion of the S2 filter into the extant RTPD (real-time traffic detector) model creates the novel enhanced RTPD (ERTPD) framework. The R2-FLC uses the ERPTD to detect the current traffic pattern of a logical channel on the fly and auto-tunes accordingly. The auto-tuning process, which is system reconfiguration in the R2-FLC context, neutralizes the ill effects by changing traffic patterns on the accuracy and stability of the dynamic buffer size tuning process.