Contention Resolution
Whenever two or more data packets arrive at a network node at the same time and contend for the same output, external blocking occurs. All packets but one are perceived as superfluous, and have to be dealt with. Next to the obvious choice of dropping all excess packets, academic literature typically presents three solutions: buffering, deflection routing or wavelength conversion. Optical buffering uses fiber delay lines (FDLs) to delay the light, and is regarded as the most effective, but comes with the additional cost of the FDLs.
Read more about this topic: Optical Buffer
Famous quotes containing the words contention and/or resolution:
“In truth, the legitimate contention is, not of one age or school of literary art against another, but of all successive schools alike, against the stupidity which is dead to the substance, and the vulgarity which is dead to form.”
—Walter Pater (1839–1894)
“We often see malefactors, when they are led to execution, put on resolution and a contempt of death which, in truth, is nothing else but fearing to look it in the face—so that this pretended bravery may very truly be said to do the same good office to their mind that the blindfold does to their eyes.”
—François, Duc De La Rochefoucauld (1613–1680)