Labels:text | screenshot | font | rectangle | line OCR: FRAME RELAY FRAME FORMAT Frame relay THformation field header front 262 to over 8,000 bytes FOS DLCI : Data Link Connection Identifier field C/R = Command/Response field bit (application specific) EA = Extended Address field FECN = Forward Specific Congestion Notification Byte 1 Byte 2 BECN = Backward Explicit Congestion Notification FOS > Frame Check Sequence Flag = frame delimiter DLCI C/R EA DLCI DE FA FECN OBECN Figure 1. Frame relay frames vary in size, giving this protocol a lower throughput rate than ATM. Traffic control equipment must monitor packet length. In terms of addressing and control fields, the frames in this pro- tocol are based on a uniform structure.