a forward error correction encoder, coupled to the fast path and to the interleave path, for providing {HEAD ~ error correction} to the plurality of {TAIL ~ frames} to produce codewords in both the fast path and the interleave path, wherein each codeword is comprised of a plurality of bytes of data; and 
a forward error correction encoder , coupled to the fast path and to the interleave path , for providing { HEAD ~ error correction } to the plurality of { TAIL ~ frames } to produce codewords in both the fast path and the interleave path , wherein each codeword is comprised of a plurality of bytes of data ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH