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Trunk from Switch 2960x Gog port to Server having 1000BaseT NIC but Trunk auto speed is a-100 why???

Hi all,

I have scenario I connected my Cisco 2960x-24Gig switch with a server hace 1000BaseT NIC and configure a  switch port as a trunk with on mode...trunk is working but the  trunking is  at a-100 speed i didnt assign any any manual speed on either side both working on auto

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Trunk from Switch 2960x Gog port to Server having 1000BaseT NIC

On the 2960X, do the following commands:

1.  Command:  test cable tdr interface Gig ;

2.  Wait for about 5 to 7 seconds;

3.  Command:  sh cable tdr interface Gig ; and

4.  Post the output to #3.

New Member

Trunk from Switch 2960x Gog port to Server having 1000BaseT NIC

Solved using

interface GigabitEthernet1/0/11

switchport mode trunk

switchport nonegotiate

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