This paper consists of a categorization of optical buffering strategies for
optical packet switches, and a comparison of the performance of these stra
tegies both with respect to packet loss/delay and bit error rate (BER) perf
ormance. Issues surrounding optical buffer implementation are discussed, an
d representative architectures are introduced under different categories, C
onclusions are drawn about packet loss and BER performance, and about the c
haracteristics an architecture should have to be practical. It is shown tha
t there is a strong case for the use of optical regeneration for successful
cascading of these architectures.