Xref: utzoo comp.dcom.lans:4684 comp.sys.att:9146 Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uwm.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!apple!netcom!jbreeden From: jbreeden@netcom.UUCP (John Breeden) Newsgroups: comp.dcom.lans,comp.sys.att Subject: Re: Twisted pair (StarLan) to ThinNet Keywords: LAN twisted thinnet Message-ID: <10202@netcom.UUCP> Date: 29 Mar 90 21:14:38 GMT References: <405@ohsuhcx.ohsu.edu> <430@venice.SEDD.TRW.COM> Organization: NetCom Lines: 68 In article <430@venice.SEDD.TRW.COM> greene@venice.sedd.trw.com (John Greene) writes: > >First thing is that you are mixing two different things here. Literally, you >can bridge between ThinNet and StarLan using a Mac Layer Bridge such as made >by Retix. StarLan is a 1 MegaBit/Sec twisted pair network. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ THERE ARE TWO DIFFERENT STARLAN PRODUCTS!!!!! Starlan1 is 1mb ethernet. It is IEEE/1baseT and yes, you can bridge it - HP also makes a 10:1 bridge. AT&T OEMs it as the Starlan 10:1 bridge. AT&T ALSO makes Starlan10. It is designed in complience with the 10baseT draft, as is UB and HP's TP products - and all three will "plug-and-play" in the same network. All three will work in a netork based on the current draft and will therefore work if the current draft becomes the standard. (and it looks like it will). >The Synoptics stuff is an implementation of 10 MBit/sec twisted pair which >is in the process of being standardized as 10baseT. NO, NO, NO, NO, NO. Synoptic's Lattisnet IS NOT EVEN CLOSE to what the 10baseT committee is standardizing on! It is a PROPRIATERY protocol. If you want to convert a Lattisnet network to 10baseT you will need to name all your Lattisnet cards Frisby and replace them with Synoptic's 10baseT cards (Fork Lift Upgrade). It is closer to what AT&T, UB and HP have been shipping for two years. If the current draft becomes the standard, AT&Ts, UBs and HPs product will conform and work as is WITHOUT HAVING TO DO ANY "MIGRATION" (ie: No Fork Lift Upgrade). You WILL NOT get that with Synoptics. >I think that StarLan carries a standard of 1base5 (I think). Try IEEE 802.3/1baseT for Starlan1 and IEEE 802.3/10baseT for Starlan10, there is no 1base5. >It's been five years since I messed with any of this stuff. > No kidding. >In short, No, Synoptics is not the same as StarLan. Unless it is their series >3000 stuff, it's not 10baseT either. You are right - it ain't 1baseT OR 10baseT, and that's both the Synoptics 1000 AND 3000 series if you buy Lattisnet cards. Synoptics has ANNOUNCED 10baseT cards for the 3000 series - but I have no idea if they are shipping them yet. There was a 10baseT intervendor demonstration at Interop this year and Synoptics didn't participate. There has been conflicting press on this - whether Synoptics wasn't invited (so says Synoptics) or whether they refused (so says everyone else). John Robert Breeden, INTERNET:jbreeden@netcom.uucp, UUCP:apple!netcom!jbreeden, ATTMAIL:!jbreeden ---------------------------------------------------------------------------- "The nice thing about standards is that you have so many to choose from. If you don't like any of them, you just wait for next year's model." -- John Robert Breeden, INTERNET:jbreeden@netcom.uucp, UUCP:apple!netcom!jbreeden, ATTMAIL:!jbreeden ---------------------------------------------------------------------------- "The nice thing about standards is that you have so many to choose from. If you don't like any of them, you just wait for next year's model."