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Switch |
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monkeyson2 (16:00 22/9/2003)
mavhc (16:46 22/9/2003)
Paolo Zaino (17:34 22/9/2003)
john (21:50 22/9/2003)
monkeyson2 (16:29 24/9/2003)
Paolo Zaino (19:02 24/9/2003)
ksattic (21:06 24/9/2003)
john (22:35 24/9/2003)
mavhc (23:45 24/9/2003)
monkeyson2 (09:43 25/9/2003)
john (12:20 25/9/2003)
mavhc (14:31 25/9/2003)
john (22:44 25/9/2003)
Paolo Zaino (16:42 26/9/2003)
monkeyson2 (16:46 26/9/2003)
Paolo Zaino (18:45 26/9/2003)
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Phil Mellor |
Message #46612, posted by monkeyson2 at 16:00, 22/9/2003 |
 Please don't let them make me be a monkey butler
Posts: 12380
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Am I going nuts? To connect a switch to a network socket in the wall, I need a crossover cable, right? |
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Mark Scholes |
Message #46615, posted by mavhc at 16:46, 22/9/2003, in reply to message #46612 |
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Posts: 660
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Am I going nuts? To connect a switch to a network socket in the wall, I need a crossover cable, right? Depends on the switch, the buttons you press on it, the port you plug it in. Mine autodectects and swaps if needed. |
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Paolo Fabio Zaino |
Message #46617, posted by Paolo Zaino at 17:34, 22/9/2003, in reply to message #46612 |
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Posts: 61
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Usually, if your is a switch and not a HUB, you don't need a crossover cable, because Switches use port-commutation (is it the right english term?) that means they discover by their self if the port have to work for a DTE or a DCE etc...
Anyway in your case, if you are using a CROSSOVER cable from the wall socket to the switch you are inverting the cable pins and it is absolutely not needed.
[Edited by Paolo Zaino at 17:34, 22/9/2003] |
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John D |
Message #46620, posted by john at 21:50, 22/9/2003, in reply to message #46612 |
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Posts: 261
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Assuming a normal device would work in the same socket with a straight cable (check that!) then you'd connect with a crossover cable, unless you're using an "uplink" port on your switch, in which case you connect with a straight cable. As the above say, many (but not all) switches will work either way. |
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Phil Mellor |
Message #46632, posted by monkeyson2 at 16:29, 24/9/2003, in reply to message #46620 |
Please don't let them make me be a monkey butler
Posts: 12380
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Woot! It works.  Thanks for all your suggestions 
I did need the crossover cable, and also to attach a console and set up the IP details.
I'm now seeing how many power extension cables I can find. I want to plug in as many computers in as possible.  |
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Paolo Fabio Zaino |
Message #46634, posted by Paolo Zaino at 19:02, 24/9/2003, in reply to message #46632 |
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Posts: 61
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...well pay attention to not use to much switches structures...
Useing too much "switches structures" will slow down your network (specially if your switches are layer 2).
Try to group your computers on any switch by their work function
GOOD LUCK |
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Simon Wilson |
Message #46635, posted by ksattic at 21:06, 24/9/2003, in reply to message #46632 |
 Finally, an avatar!
Posts: 1291
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I'm now seeing how many power extension cables I can find. I want to plug in as many computers in as possible. Heh! When I move out of uni accommodation and get my own place, I'm going to dig up my old Beebs, Masters and my A5000 and get them all running again. I wonder if you could write a tiny TCP/IP stack for the beeb.
A bit o/t now, but is there a cross-compiler available to generate code for the beeb's 6502? That'd be cool. |
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John D |
Message #46638, posted by john at 22:35, 24/9/2003, in reply to message #46632 |
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Posts: 261
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I don't think what you're using is a switch, switches don't know about IP they just switch based on the mac address. They're basically a hub, with a bridge in each port. A hub is just a repeater. A bridge only passes traffic if it doesn't know that the destination MAC address is on the side the packet originated from (if that doesn't make sense consult a decent web site :)
What you have must be some kind of router.
Anyway, good to hear it worked in the end :) Oh, and don't melt anything by overloading sockets. |
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Mark Scholes |
Message #46640, posted by mavhc at 23:45, 24/9/2003, in reply to message #46638 |
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Posts: 660
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I don't think what you're using is a switch, switches don't know about IP they just switch based on the mac address. More expensive switches can be configured by telnet so need an ip. |
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Phil Mellor |
Message #46644, posted by monkeyson2 at 09:43, 25/9/2003, in reply to message #46640 |
Please don't let them make me be a monkey butler
Posts: 12380
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It's definitely a switch - which we're using because we don't have a hub handy. 
It's got 24 ports, and is the second one down on the photo here:
http://www.cisco.com/en/US/products/hw/switches/ps628/index.html
[Edited by monkeyson2 at 09:45, 25/9/2003] |
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John D |
Message #46647, posted by john at 12:20, 25/9/2003, in reply to message #46644 |
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Posts: 261
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Oh interesting. In that case it's not *just* a switch :) I'm surprised it needs configuring before it'll even work, a switch can work without, I presume you use the IP interface to look at statistics etc. |
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Mark Scholes |
Message #46653, posted by mavhc at 14:31, 25/9/2003, in reply to message #46647 |
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Posts: 660
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Oh interesting. In that case it's not *just* a switch It's a kick ass superneato switch. Seeing as they tend to be used in series with others it's probably set up not to do anything until configured properly, or the previous owned messed it up. Download the manual and see. |
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John D |
Message #46664, posted by john at 22:44, 25/9/2003, in reply to message #46653 |
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Posts: 261
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I was tempted, but I'm not quite that interested (got project to work on) but I've don't think I'll have one of those soon, I reckon they aren't cheap to buy :) |
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Paolo Fabio Zaino |
Message #46680, posted by Paolo Zaino at 16:42, 26/9/2003, in reply to message #46664 |
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Posts: 61
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Basically there is 2 different types of switches:
Layer 2 (that cacherize the m.a.c. addresses)
Layer 3 (that cacherize th IP codes)
Anyway both of them works on the concept of "frame analysis".
The layer 2 switches analyze the ethernet frame for take the mac address where the data-frame is addressed.
The layer 3 switches analyze the TCP/IP packet (any of them have destination ip code inside itself, it should be saved in the first octets of frame-bits).
There is also studies for realize the "port-commutation" one the layer 4 (basically the sockets) but i don't know wich real advantage should they offer calculating, also, the more overhead generated by the packets analysis.
Anyway... yes you must configure only the layer 3 switches generating in their eeprom the topology of your network (by telnet or, also, by a web application).
Any of those advantages are basically used only for a "base packet local route" so them are used for optimize big lan and so they are a bit expansive.
I work with 2 3Com SuperSTack 3 4228G and they works wonderfully
[Edited by Paolo Zaino at 16:46, 26/9/2003] |
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Phil Mellor |
Message #46682, posted by monkeyson2 at 16:46, 26/9/2003, in reply to message #46680 |
Please don't let them make me be a monkey butler
Posts: 12380
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To be fair, I don't know if the switch needed setting up - I did that while I was waiting for the crossover cable, just incase. I'm not going to deconfigure it now that it's working, just to find out! |
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Paolo Fabio Zaino |
Message #46692, posted by Paolo Zaino at 18:45, 26/9/2003, in reply to message #46682 |
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Posts: 61
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Don't worry Jake, i am sure it is a layer 2 switch (otherwise you should be still crying for the price lol) |
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