how to get 1gb speed from switch to switch

November 23, 2010 at 05:32:38
Specs: xp32, 555 phenom
I have two un-managed switches that communicate to each computer at 1gb speeds. All computers seem to have to be set to auto detect to gain 1gb speeds but the signal from switch to switch is always 100. Is there a was to do this with a un-managed switch?

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#1
November 23, 2010 at 05:44:21
but the signal from switch to switch is always 100.

Are you using a crossover cable to connect the two switches? If not, you should be. And, you should be using the correct crossover cable to boot.

If you are, I'd wager it's a 10/100 Mbps crossover. For a 10/100 Mbps crossover cable, you only need to cross the green and orange pairs.

For a 1000 Mbps crossover cable you have to cross all the wires (blue and brown as well as the green/orange).

If you bought your crossover cable at the local computer store and didn't specify that you were going to need it for 1000 Mbps it's likely they didn't think about it and just gave you what was handy. I would go back, make sure they understand it's for 1000 Mbps and therefore has to have all 4 pairs crossed.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#2
November 24, 2010 at 06:10:30
"Are you using a crossover cable to connect the two switches? " - huh, no way. No wonder...

ok so I need this
http://www.samuraiitguy.com/wp-cont...

I guess I should have thought about that.


- update-
I made the cable and It seems to still get low speeds. I dont think it could be a cabling issues now as nothing would work if I made a mistake. I saw the switch attempt but defaulted to 100.


I tried one more, with the same result.


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#3
November 24, 2010 at 07:28:44
I made the cable and It seems to still get low speeds. I dont think it could be a cabling issues now as nothing would work if I made a mistake. I saw the switch attempt but defaulted to 100.

If you've made the 1000 Mbps crossover correctly (and your diagram shows the correct pinout) and it's tested OK, then it has to be an issue with the switch port(s).

Check the documentation on the switches. Are all ports on it Auto MDIX or are there specific uplink ports you should be using?

If there are specific uplink ports, ensure you're using those on both.

If they're all Auto MDIX, try different ports on both.

I hesitate to ask because most people don't have the necessary tools but, did you test your cable? Those cheap little blinking light type testers are basically useless, I would use one that can test and certify. But, as I said, most folks, and even most computer stores, don't stock the appropriate tool for certifying cables. Mostly stores just have the blinking light type of testers.

If you don't have a real tester, connect two PC's directly with the 1000 Mbps crossover. If they connect at 1000 Mbps, then it's a pretty safe bet your cable is ok and the issue is the one, or both, of the switches.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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Related Solutions

#4
November 24, 2010 at 20:50:46
ok:

switch one)
Dellâ„¢ PowerConnectâ„¢ 26xx switches provide 10/100/1000-Mbps Gigabit Ethernet connectivity. The switches have the following features:

* 10/100/1000-Mbps switch ports
o 8 ports (PowerConnect 2608)
o 16 ports (PowerConnect 2616)
o 24 ports, including one combination RJ-45/small form factor (SFP) port (PowerConnect 2624)
* Complies with IEEE 802.3 10Base-T, IEEE 802.3u 100Base-TX, IEEE 802.3z/ab 1000Base-T
* Tag-based IEEE 802.1p Class-of-Service with two priority queues per port
* IEEE 802.3x PAUSE frames flow control in full-duplex operation
* Automatic negotiation for speed and full- and half-duplex mode on all ports
* Backpressure flow control in half-duplex operation
* Collision detection on all ports
* Auto MDI/MDIX
* 4K MAC address entries supported
* Comprehensive LED indicator panel to monitor overall switching condition
* 19-inch rackmountable and wallmountable, standard 1U chassis
* Internal power supply


switch two)
Netgear jgs516 lots of info so here is what it says about the ports
Interfaces/Ports

# : 16 x 10/100/1000Base-T LANInterfaces/Ports Details
: 16 x RJ-45 10/100/1000Base-T Auto-sensing/Auto MDI/MDI-X LAN


Guessing all ports should work? I tried a few other ports with no luck. I do not own a single tester so I guess its still a cable issue. I should be able to get a pc to pc test. Will report back.



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#5
November 24, 2010 at 22:10:51
Save yourself some life span and buy a factory made cable.

Answers are only as good as the information you provide.
How to properly post a question:


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#6
November 25, 2010 at 05:52:33
Yep, I agree with wanderer buy a factory made 1000 Mbps crossover cable.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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