CONTENTS

 1     Scope
 2     References
 3     Terms and definitions
 4     Abbreviations
 5     Conventions
 6     Common aspects of GFP
        6.1     Basic signal structure for GFP client frames
                  6.1.1     GFP Core Header
                  6.1.2     GFP Payload Area
                  6.1.3     GFP client frames
        6.2     GFP Control frames
                  6.2.1     GFP Idle frames
                  6.2.2     Other control frames
        6.3     GFP frame-level functions
                  6.3.1     GFP frame delineation algorithm
                  6.3.2     Frame multiplexing
                  6.3.3     Client Signal Fail indication
                  6.3.4     Defect handling in GFP
 7     Payload specific aspects for frame-mapped GFP
        7.1     Ethernet MAC payload
                  7.1.1     Ethernet MAC encapsulation
                  7.1.2     Ethernet Inter-Packet Gap (IPG) deletion and restoring
        7.2     IP/PPP payload
                  7.2.1     PPP frame encapsulation
                  7.2.2     GFP/HDLC delineation interworking
                  7.2.3     PPP payload configuration options
        7.3     Error handling in frame-mapped GFP
 8     Payload-specific aspects for transparent mapping of 8B/10B clients into GFP
        8.1     Adapting 8B/10B client signals via 64B/65B block codes
                  8.1.1     10B_ERR code
                  8.1.2     Insertion of 65B_PAD code and GFP Client Management frames
        8.2     Adapting 64B/65B code blocks into GFP
                  8.2.1     Error control with Transparent GFP
        8.3     Running disparity in 64B/65B codes
                  8.3.1     Handling of running disparity on ingress
                  8.3.2     Handling of running disparity on egress
                  8.3.3     Client-specific running disparity aspects
        8.4     Rate adaptation in 64B/65B codes
                  8.4.1     Egress rate adaptation procedures
                  8.4.2     Client-specific rate adaptation aspects
        8.5     Client-specific Signal Fail aspects
                  8.5.1     Fibre Channel payload
                  8.5.2     ESCON Payload
                  8.5.3     FICON Payload
                  8.5.4     Full-duplex Gigabit Ethernet payload
Appendix I - Examples of functional models for GFP applications
Appendix II - Sample GFP payload types
Appendix III - GFP frame example illustrating transmission order and CRC calculation
Appendix IV - Number of superblocks used in Transparent GFP