--------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200008 Date: 07/30/96 From: DENIS BERNICKY Time: 09:55am \/To: ALL (Read 7 times) Subj: Looking for an FAQ I am looking for an FAQ doc of somekind or anykind regarding the setting up and management of a peer to peer LAN. If anyone can help me out I would appreciate it. You can message me here or reach me at panda@infobahnos.com --- Platinum Xpress/Win/Wildcat5! v2.0GE * Origin: Lions BBS, Longueuil, Qc (514)679-9472 (1:167/580) --------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200009 Date: 08/02/96 From: LEW MURRAY Time: 07:24am \/To: LAWRENCE GARVIN (Read 7 times) Subj: BNC hubs..? On (01 Aug 96) Lawrence Garvin wrote to Lew Murray... LG> Lew Murray said in a message to Mike Bilow: LM> On (31 Jul 96) Mike Bilow wrote to Lew Murray... MB> Lew Murray wrote in a message to George Fliger: LM> Arcnet is 75ohm and only 2mbits. MB> ARCnet is nominally 100 ohms. LM> Arcnet uses rg59 cable which is *75* ohm! LG> Actually, ArcNet uses RG-62U/A, but it's still 75 ohm. :) It will work with *ANY* 75 ohm cable. RG62 has a lower loss factor than 59 and would therefore be a *little* more reliable if you are near the limit of the length. LM> The same as T.V. cable. LG> I thought TV ran on RG-58 and/or RG-8? (Although I do know of one LG> residential installation using RG-6!) No. T.V. is RG59 or RG11. RG6 is sometimes used on satelite dishes but is serious overkill anywhere else. If you have cable T.V. look at it and you'll see. If not, call Radio Shack and ask them. --- PPoint 2.00 * Origin: A Professional Point System (1:396/1.20) --------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200010 Date: 08/02/96 From: MIKE BILOW Time: 12:25am \/To: LEW MURRAY (Read 7 times) Subj: BNC hubs..? Lew Murray wrote in a message to Mike Bilow: LM> Arcnet is 75ohm and only 2mbits. MB> ARCnet is nominally 100 ohms. LM> Arcnet uses rg59 cable which is *75* ohm! The same as T.V. LM> cable. Video uses RG-59, which is 75 ohms. ARCnet uses RG-62, which is 93 ohms. LM> I really wish you'd stop trying to teach Grandma how to knit. You're allowed to disagree with people here, but not to insult them. I think you had something of a dispute with the moderator on the LANTASTI echo; please consider this a warning that a repeat of your performance there will not be tolerated here. -- Mike Moderator, LAN --- * Origin: N1BEE BBS +1 401 944 8498 V.34/V.FC/V.32bis/HST16.8 (1:323/107) --------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200011 Date: 08/02/96 From: MIKE BILOW Time: 12:35am \/To: JIM PALMER (Read 7 times) Subj: APPLETALK TO PC ? Jim Palmer wrote in a message to Doug Joorish: JP> According to the current definition by Apple: LocalTalk is JP> the hardware involved in the 230 kbps network built into JP> EVERY Mac. AppleTalk is a protocol Apples may use among JP> themselves. One could network Apples without either, or JP> with both or just use Appletalk but not LocalTalk. As I have been trying to make clear in several messages, Apple caused a lot of confusion by renaming everything in 1989. What was then "AppleTalk" is what is now "LocalTalk." The whole networking stack is now "AppleTalk," which can be run over LocalTalk, EtherTalk, or TokenTalk. -- Mike --- * Origin: N1BEE BBS +1 401 944 8498 V.34/V.FC/V.32bis/HST16.8 (1:323/107) --------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200012 Date: 08/02/96 From: MIKE BILOW Time: 12:38am \/To: ANTHONY MCCULLOUGH (Read 7 times) Subj: Bnc hubs..? Anthony Mccullough wrote in a message to Mike Bilow: -> No, a coax Ethernet device would never have internal termination, -> since this would prevent it from being used in the middle of a cable -> segment. AM> Ah yes... But what if the hub is the last device on AM> the segment? If you are at the end of the coax you need to AM> terminate it to prevent signal cancelling signals from AM> reflecting back down the wire. It doesn't matter what device AM> is last on the chain, the wire needs to be terminated. This is true, but you would want the freedom to put the hub elsewhere than at the physical end of the coax. AM> Some devices save you the trouble. Repeaters and AM> NICs are often self terminating by way of a switch or jumper AM> in case they are the last device on the segment. In these AM> cases, activating the internal terminator allows a direct AM> connection without a T-connector. A repeater should never be self-terminating, since this could blind it to reflections. It is electrically undesirable to put a repeater at the very end of the cable, although obviously that's the place where it is most eded. AM> In theory, couldn't a multi-port repeater (hub) AM> provide internal termination for the segment if it is the AM> last device? That is on the "IN" side. Probably, each AM> "OUT" port would either be terminated or filtered internally AM> and would not require any user termination. I think that AM> was the point that was trying to be made. Ethernet cable operates like radio transmission line. That couple of inches between the electrical tie point and the resistor that is created by the tee connector gets you a real increase in reliability. -- Mike --- * Origin: N1BEE BBS +1 401 944 8498 V.34/V.FC/V.32bis/HST16.8 (1:323/107) --------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200013 Date: 07/31/96 From: DAVID PATTERSON Time: 03:06pm \/To: JFK (Read 7 times) Subj: Need help -> want to know some good soft15:06:4307/31/96 J> I've been using a network for a little time now.. using windows 3.11 J> But now i want to advance it a little further by having support to use J> network drives in dos .. and if possible, to be able to share com J> ports (for the modem)... Microsoft has a free DOS client for WFWG, ie. you can download it or get it from the internet. Stomper is shareware for modem sharing. Dave P. Internet Address: David.Patterson@pcwiz.linknet.ccinet.ab.ca --- Msgedsq 2.2e * Origin: ESPER Computer Systems Ft.McMurray AB (1:3402/4.1) --------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200014 Date: 08/01/96 From: JEFF DUNLOP Time: 09:00pm \/To: MIKE BILOW (Read 7 times) Subj: In house LAN MB> It's a tough call. There is some serious doubt that collisions can be MB> detected reliably, since all you can see at an instant of time is the MB> presence or absence of signal on the wire. A collision is supposed detected when a signal exists above a certain voltage. This is then followed by a jam signal. It seems to me a hub could detect either of these conditions. Jeff --- GoldED/2 2.42.G0615 * Origin: DB/Soft Online - Sacramento, CA (916)927-2349 (1:203/16) --------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200015 Date: 08/01/96 From: GEORGE FLIGER Time: 08:04pm \/To: MIKE BILOW (Read 7 times) Subj: Re: BNC hubs..? On 31 Jul 96 08:48am, Mike Bilow wrote to Doug Joorish: MB> Doug Joorish wrote in a message to Mike Bilow: MB> No, a coax Ethernet device would never have internal MB> termination, since this would prevent it from being MB> used in the middle of a cable segment. DJ> If it were a hub, you wouldn't want to use it in the middle DJ> of a segment... it would be intended as a terminator... at DJ> least, that's the way I would use it... MB> There is no reason that a hub could not be in the middle of a MB> segment. There would be if the hub was internally terminated. George ... Any sufficiently advanced technology is indistinguishable from magic. --- Via Silver Xpress V4.3P BT003 * Origin: Chipper Clipper * Networking fun! (1:137/2) --------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200016 Date: 08/01/96 From: GEORGE FLIGER Time: 08:04pm \/To: MIKE BILOW (Read 7 times) Subj: Re: BNC hubs..? On 31 Jul 96 08:49am, Mike Bilow wrote to Lew Murray: MB> Lew Murray wrote in a message to George Fliger: LM> Arcnet is 75ohm and only 2mbits. MB> ARCnet is nominally 100 ohms. More accurately it is 93 ohms. George ... Exceptions rule. --- Via Silver Xpress V4.3P BT003 * Origin: Chipper Clipper * Networking fun! (1:137/2) --------------- FIDO MESSAGE AREA==> TOPIC: 193 LAN Ref: DC200017 Date: 08/01/96 From: TORE HANSEN Time: 01:22pm \/To: LEW MURRAY (Read 7 times) Subj: BNC HUBS..? Hello LEW, on 07-28-96 you wrote to MIKE BILOW about BNC HUBS..?: LM> A lot of ethernet "devices" have "internal termination." It LM> is either switch or jumper *optional.* If it is the last LM> device, then you enable it. If not, you disable it. MB> I've never yet seen one, though. LM> That's funny; I've seen several. The only Ethernet cards I know of that have built in termination are the 10BaseT ones, as they are designed for hub based star wiring. I have never seen a 10Base2 (coax) card with built in termination. Switchable on board terminators were common on the old Arcnet cards, as these could be used in either a daisy chain or star configuration over coax. What brands and models of Ethernet cards have you seen switchable terminations on? I'd like to know so that I can avoid them. In my view, 10Base2 cards with internal terminators represent a serious technical LAN hazard. Imagine having to open up every machine on a LAN in order to find such a card. Tore tore.hansen@bbs.logicnet.com -- CMPQwk 1.42-R2 391 ... Careful, we don't want to learn from this. - Calvin --- PCBoard 15.2 * Origin: 32 lines 40 Gig BBS, Realtime InterNet SLIP (403)247-7900 (1:134/10)