ocr: FIGURE 1 For an outgong, frame, the nghest OSI layer un te a system preallocates space for the headers ofthe other layers in the buffer, thus making Tt easy 10 add: head- ers: to the, same bufer without copying, OStLaverN OSILayer N-f write. pointer - - LayerN Header & OSILayer N-2 datal Layer NT header Layer NS header:
