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Can i plug an end node into a trunk port?

I have two ports on my cisco 4000 series switch. can i use these ports to plug an end node into it?......... or am i unable to use these ports ....

I assume you shouldnt  use the ports.... ( this may be a dumb question)... but i really know after reading about trunking and vlans...

thanks

r davis

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VIP Expert

Re: Can i plug an end node into a trunk port?

davisr651 wrote:

I have two ports on my cisco 4000 series switch. can i use these ports to plug an end node into it?......... or am i unable to use these ports ....

If your ports on the switch is trunked, then your end device (like a PC or a server) need to be able to do dot.q also.

However if the port is just an access port, then you can simply plug your end device (PC or server) to it without any need for trunking.

HTH

Reza

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Hall of Fame Mentor

Re: Can i plug an end node into a trunk port?

If the switchport is configured as trunk and the encapsulation is 802.1q, the switchport will send untagged packets by using the native vlan. By default, the native vlan on a 802.1q trunk port is vlan 1. If your Vlan 1 is routable, you should be able to plug an end station into these switchports and have connectivity.

If you post the switch config, we can provide more assistance.

Regards

Edison

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4 REPLIES 4
VIP Expert

Re: Can i plug an end node into a trunk port?

davisr651 wrote:

I have two ports on my cisco 4000 series switch. can i use these ports to plug an end node into it?......... or am i unable to use these ports ....

If your ports on the switch is trunked, then your end device (like a PC or a server) need to be able to do dot.q also.

However if the port is just an access port, then you can simply plug your end device (PC or server) to it without any need for trunking.

HTH

Reza

View solution in original post

Beginner

Re: Can i plug an end node into a trunk port?

Thank you

Hall of Fame Mentor

Re: Can i plug an end node into a trunk port?

If the switchport is configured as trunk and the encapsulation is 802.1q, the switchport will send untagged packets by using the native vlan. By default, the native vlan on a 802.1q trunk port is vlan 1. If your Vlan 1 is routable, you should be able to plug an end station into these switchports and have connectivity.

If you post the switch config, we can provide more assistance.

Regards

Edison

View solution in original post

Beginner

Re: Can i plug an end node into a trunk port?

thank you

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