ocr: goaytes soytes bvte: obytes erous seqcon orernecu Pathr PeMoad reneau LDC Gempeau gure 1.The payload rate in SUNET 15 somewhat - less than the actual data rate: because: of < the struc- ture of a standard STS-1 frame. Three bytes in each row are used for section and line overnead, while the fourth byte is path overhead.