Merging with Block check character

Against :

FCS is a term that is used in Data link layer protocols in particular, while BCC is used in another world. - DéRahier 12:38, 1 October 2007 (UTC)[reply]

Strongly Against as per DéRahier. FCS appears at the end of Ethernet frames at layer 2, but BCC appears periodically within IBM bisync communications with a mainframe at layer 5. If the bisync com were contained in Ethernet frames across a LAN or MAN or WAN, then there would be a BCS at layer 5 within the payload of the Ethernet frame and then an FCS at layer 2 in the trailer of the Ethernet frame. The FCS in the Ethernet trailer is 4 bytes and uses the polynomial x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1. The BCC in the IBM terminal HDLC stream is 16 bits and uses the polynomial X^16+X^15+X^2+1. Ethernet frames are not an HDLC stream nor vice versa. I must admit that I am annoyed with people who do nontechnical "copy editing" such as merging articles that shouldn't be merged and deleting articles that shouldn't be deleted without doing the necessary homework. Simple Google searches on "Ethernet FCS polynomial" and "IBM BCC polynomial" pulled up this information quite easily in the first few search results. I am afraid that I see little commonality at all between FCS and BCC other than they are a bunch of ones and zeros. Perhaps we should merge all teledatacom and computer articles into one article called Ones and zeros. Please do some of the obvious Google searches to see if topics are synonymous *before* suggesting that their articles be merged. —optikos 11:31, 4 October 2007 (UTC)[reply]