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Switch ports doubt

bern46
Level 1
Level 1

Hello,

I have a Cisco 2960 with 24 ports and 2 additional SPF+ ports.

When checking the configuration, I see a total of 26 GigabitEthernet and also 2 TenGigabitEthernet ports. Total of 28 ports.

Is it possible that port 25 and 26 are those TenGigabitPorts but configured as Gigabit ?

Thanks and regards.

2 Accepted Solutions

Accepted Solutions

@bern46 correct. as i guessed. if you plugged 10G-SR, you need to configure tengig interfaces and if you plugged 1G SFP, you can configure gig interfaces,

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB

View solution in original post

yes its normal nothing to worry on that (but dont count as 28 ports, only 26 ports)

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View solution in original post

14 Replies 14

it should be combo ports. what is the switch model. share output of #sh ver

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Good luck
KB

It's WS-C2960X-24TD-L. I've seen both with 2 and 4 sfp ports. This one has 2

Thanks

balaji.bandi
Hall of Fame
Hall of Fame

its dual mode ports you can use for 1Gig and 10Gig SFP on that ports. so you need to use either gig or tengig ( so totaly only 26 ports)

 

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So it's normal they appear twice as Gig and TenGig ports ?

Thanks for the fast replies.

can I see show interface status ?

if you can share exact model number, we can tell exact supported and count of ports

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB

yes its normal nothing to worry on that (but dont count as 28 ports, only 26 ports)

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bern46
Level 1
Level 1

This is shown in show verion (note it's a stack of 2)

52 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces

And interface status shows port 25 and 26 configured as 1Gig:

Gi1/0/25 connected trunk a-full a-1000 1000BaseSX SFP
Gi1/0/26 pc + VoIP notconnect 1 auto auto 1000BaseSX SFP

Is it normal that show running-config still displays the TenGig port even they're configured as Gig?

 

friend there are two physical  Ten port in each SW 
the port are 
24 port + 2 multi Gig port + 2 Ten ports 
the total number you will see 
48+ 4 = 52 gig port 
4 Ten ports 
for both SW. 

without seeing exact model number i cannot say the 100% accuracy of this. but it seems like 2960X 24 port with 2 SFP+ ports. so config will show 2 SFP+ ports as tengigs. some switches have 2 port configurations for 1 and 10gig. this can be like that.

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB

bern46
Level 1
Level 1

@Kasun Bandara The model number is WS-C2960X-24TD-L Do you need anything else ?

@MHM Cisco WorldThe first I did is to check physically on the switch and there are 24 ports + 2

Thanks guys.

SFP-10G-LR_in_switch.jpg
here what you see ? are there any SFP in slot show in photo ??

@bern46 correct. as i guessed. if you plugged 10G-SR, you need to configure tengig interfaces and if you plugged 1G SFP, you can configure gig interfaces,

Please rate this and mark as solution/answer, if this resolved your issue
Good luck
KB

@bern46 can you share 
show  show interface transceiver details <<-
if you can, I need to see how SW show both speed for one port. 
thanks 

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