- http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/tokenrng.htm - http://www2.rad.com/networks/1996/toknring/toknring.htm Payload up to 4027 bytes, highly reliable, no collisions, but does not make very good use of the available bandwidth (although to be fair, neither does EtherNet). CategoryNetwork