100baseTX is just for crossover right?

ScottMac

Moderator<br>Networking<br>Elite member
Mar 19, 2001
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No. A crossover cable is just like an uplink port.

100BASE-TX is 100 meg Ethernet over copper.

Scott
 

TechBoyJK

Lifer
Oct 17, 2002
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Well, I just got a Cisco 1912C EN switch, which is a twelve port 10Mpbs switch, but it has a 100BaseTX port as well, which looks like ethernet. I'm trying to decide what that is for.
 

gunrunnerjohn

Golden Member
Nov 2, 2002
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You're looking at a 10mbit switch with one 100mbit port, intended for the server. This has to be a pretty old box, the base standard nowadays is 100mb all around. Nowadays you see 100mbit switches with a gigabit port for the server. :)
 

TechBoyJK

Lifer
Oct 17, 2002
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Yea, I know its an older switch, but it was only $80 and its going into a web hosting environment, where 10Mb for public access is fine. If I am given an ethernet feed from the hosting company, I guess plug it into the 100BaseTX line and the rest of the servers behind the switch can plug into the other twelve ports?
 

buleyb

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Aug 12, 2002
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it could also be intended for the backbone to another switch/segment


and 100BaseTX is a wiring method. What is the speed of the line from your hosting company?

 

martind1

Senior member
Jul 3, 2003
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sounds like it is the port intended for uplinking IN THIS CASE.


why dont you try to find a manual on the internet for this if you want more specifics.
 

buleyb

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Aug 12, 2002
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then your solution of hooking up your provider to the 100mps port sounds good, and the clients to the 10base ports...

 

TechBoyJK

Lifer
Oct 17, 2002
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Buleyb, that is my intent. 100 uplink to web, 10mpbs for each client. I have to pay for bandwidth per meg, and I like the idea of capping the client on a physical level.
 

Torghn

Platinum Member
Mar 21, 2001
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Originally posted by: TechBoyJK
Buleyb, that is my intent. 100 uplink to web, 10mpbs for each client. I have to pay for bandwidth per meg, and I like the idea of capping the client on a physical level.

That is one fat pipe. Even 10 mpbs is incredibly fast for an internet connection. Just out of curiosity, what does your ISP charge? If you are paying per MB and you have the possibility of abuse, I'd cap the connection even more. I don't know who will be using this connection but if you get any P2P software on there you could end up paying a fortune for that connection.
 

ScottMac

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Mar 19, 2001
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Also FYI - That's labeled as 100BASE-TX...that means it WILL NOT connect at 10Mbps. You must connect it to a 100Mbps peer.

FWIW

Scott
 

Kadarin

Lifer
Nov 23, 2001
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Originally posted by: ScottMac
Also FYI - That's labeled as 100BASE-TX...that means it WILL NOT connect at 10Mbps. You must connect it to a 100Mbps peer.

FWIW

Scott

You can't set speed/duplex on that port from the CLI?
 

mboy

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Jul 29, 2001
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Unless this is a managed switch, you could have bought a 12 port, layer 2 10/100 auto uplink port switch brand new for around $that probably less.
 

ScottMac

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Mar 19, 2001
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You may be able to set duplex, but if it's labeled specifically as a 100BASE-TX port, then it will only do 100 mbps.

That's an old box, things were a little different then.

FWIW

Scott
 

TechBoyJK

Lifer
Oct 17, 2002
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Yes, this is an enterprise level managed switch. The cheapest I could find it used online outside of ebay was $400. According to the datacenter techs, it is still a very good switch, but the downfall is 10Mpbs per port. Since my situation doesn't call for high bandwidth, but functionality.