WS-C2960-48TT-L has 2 1000BaseTX or 1000BASE-T ports?

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Jan 8th, 2009
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As I know this standards are different, and 1000BaseTX need a CAT6E cable to operate.

show run says that:

Gi0/2 notconnect 1 auto auto 10/100/1000BaseTX

but here:

is said that "1000BASE-T ports: RJ-45 connectors, 4-pair Category 5 UTP cabling"

Where is the truth?

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glen.grant Thu, 01/08/2009 - 17:26
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Gig will run fine on cat5E cable and probably most cases on cat 5 .

amikat Fri, 01/09/2009 - 05:59
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The ports in question are 1000BASE-T ports as the document corretly specifies (ie. compliant to IEEE 802.3ab specification). The 1000BASE-TX standard (as prepared by ANSI/TIA/EIA not IEEE) has never reached the extent as expected and is currently rather dormant in my view. I believe that Cisco is aware that there are 2 different standards. My understanding is that when a port displays 10/100/1000BaseTX (and this is not specific to WS-C2960-48TT-L box) it actually means that it is compliant to 10BASE-T, 100BASE-TX and 1000BASE-T compatible devices.

Best regards,



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