23. The system of claim 22, wherein said preestablished conditions include at least one of the conditions that the bytes to be received by the second comparison window do not match any plurality of consecutive bytes in the first comparison window and that the byte to be received by the second comparison window is not already in the second comparison window.
22. The system of claim 21, further comprising means for generating a length of match symbol if a plurality of consecutive buffer bytes match first comparison window bytes, whereby the length of match symbol indicates the number of bytes in said plurality of consecutive buffer bytes.