viiiCONTENTSAPPENDIX A FDMMIM/LM MESSAGESInformation Messages .........................................................................A-1Warning Messages ..............................................................................A-1Error Messages ...................................................................................A-9APPENDIX B SPECIFICATIONSAPPENDIX C BASIC FDDI NETWORKSBasic FDDI Concepts ..........................................................................C-1FDDI Media Access Protocol ........................................................C-1Reliability .....................................................................................C-3ANSI Standard X3T9.5 ................................................................C-4FDDI Connection Rules ................................................................C-8FDDI Devices ......................................................................................C-9Design Considerations for FDDI Networks .....................................C-14Ring Length ................................................................................C-14Drive Distance ............................................................................C-14Attenuation .................................................................................C-15Bandwidth ...................................................................................C-15Number of Stations ...........................................................................C-15INDEX