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feleling
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Question. Stack and cable question.

I am a storage engineer. But I am interested in Dell products. There are some questions about me.

1. What is the bandwidth of the stack cable?

2. Why should I use two stack cables? Does the switch not work when only one is connected?
As far as I know, I know that stack cables must be used for synchronization, but I need an exact answer.

3. N4064F and N4032F. Are the two switches stacked?
I know that because the firmware is different, the stack does not work, but I need the correct answer.


4. I would like to know the official name of the stack cable. - model, cable name
ex) dell stack cable (model), cable 123 (cable name)

5. The cables using for extending the JBOD on the storage (full name: sff 8088 to sff 8088, 6G to 6G) and the switch stack connection cable look the same. Then, could we use the 8088 cable to connect the switch stack? Or if we use the 8088 cable to connect the switch stack, is there any problem with the switch stack?

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3 Replies
Moderator
Moderator

Re: Question. Stack and cable question.

Hi,

The bandwidth depends on the switch model. Since you mentioned the N4000 series, the stacking speed on those is 21Gbps. You can stack with a single cable, but two cables adds redundancy. You can stack switches of the same series so you can stack a 32 port and 64 port. Page 231 https://downloads.dell.com/manuals/all-products/esuprt_ser_stor_net/esuprt_networking/esuprt_net_fxd...

 

They are QSFP+ cables on the N4000 series. You can use those ports as direct connections to devices but they are not sff 8088 cables.

Thanks,
Josh Craig
Dell EMC Enterprise Support Services
Get support on Twitter @DellCaresPRO
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vt1012
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Re: Question. Stack and cable question.

Along with what Josh said, there is a paper dedicated to stacking the N4000 here: https://www.dell.com/support/article/us/en/04/sln314193/stacking-dell-networking-switches-n4032-n403... It is highly recommended that switches be at the same firmware version before stacking them. Other than that, the 32 and 64 port versions of the N4000 should be compatible for stacking. As far as a stack cable, the N4000 series doesn't have a dedicated stack cable or stack port. You would simply use one or more ethernet ports and put them in stack mode. Hope this helps.
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feleling
1 Nickel

Re: Question. Stack and cable question.

Thank you for your answer.
It helped me a lot.

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