Historically, optical interfaces have had lower reliability (MTBF) than
electrical interfaces, of the same rate, due to a high burnout rate for the
lasers. This has apparently changed now, and optical failure rates are
Do customers perceive this as true?
Do you know of estimates for MTBF for lasers vs copper, for example, 1Gig
ether O versus E? Assume that we're talking VSR usage; otherwise copper
wouldn't be suitable.
And in terms of all optical interface types, if you want roughly 10Gbps
speed but are agnostic about how, what about OC192C POS interfaces versus