The Alphawave 2.5G and lower rate (aka Sub-2.5G) GFP-F IP block performs G.7041 GFP processing on packet data at rates up to 2.5G/s. Typical applications include mapping Ethernet, MPLS or generic packet data into GFP-F frames for transmission over OTN or SONET/SDH.
Sub-2.5G: GFP Mapper
Overview
Key Features
- Core Features
- • Fully compliant with G.7041
- • Supports one channel with up to 256 logical channels based on Channel Identifier (CID)
- • Supports mapping of generic client packet data e.g. Ethernet, MPLS
- • Supports up to 2.5G transmission rates (10M/100M/1G/1.25G/2.5G)
- • GFP IDLEs are optionally inserted to facilitate rate adaptation or when client data is not available
- • Configurable GFP Header fields
- • Programmable core header, payload header, and extension header single bit error correction
- • Programmable per channel payload frame check sequence (pFCS) insertion and processing
- • Programmable extension header insertion per logical channel with error control field insertion and processing
- • Programmable payload area scrambling
- • Input port allows custom management frame generation
- • Out-of-band SSF/CSF/FDI/RDI/DCI signals on the client interface
- • In-band generation and detection of CSF/FDI/RDI/DCI management frames on line side interface
- • Received payload header values are captured in software readable registers
- • Generic FIFO-like client side interface
- • Line side interface connects seamlessly to Precise-ITC OTUK wrapper or to a generic FIFO-like Interface
- • 8-bit data width and supports up to core frequency of 350MHz depending on line side requirement. Please refer to Table 1.
- • Easy “plug and play” setup!
- Optional Features
- • Automatic 8, 12 or 64 byte Management Frame generation options
- • Software generated Client Management frames and Management Communication frames
- • Optional processor interface with 32-bit registers
- • Per channel Counters TX: frames sent, idle frames sent, client management frames sent
- • Per channel Counters RX: received frames, received idle frames, received client management frames, core header single-bit errors, core header multi-bit errors, payload header single-bit errors, payload FCS errors, extension header single-bit errors, extension header multi-bit errors
Block Diagram
