10Gb SFP+ 10GBASE-T capabilities

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Hello, everyone,

I've found a very intersting item in the price:

10338 10Gb SFP+ 10GBASE-T 10Gb SFP+, 10GBASE-T RJ45, 30m with Cat6a

Could somebody please tell me:

1) Does it work in all Summit's and 220's SFP+ (10Gb) ports?
2) How many 10338 10Gb SFP+ 10GBASE-T transceivers could I plug into X670 (gen1, gen2)?

Many thanks in advance,

Ilya

P.S. Does Extreme have mGig (2,5Gb, 5Gb, 10Gb) swithes at the moment?
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Ilya Semenov

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Posted 8 months ago

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Larry Kunz, Employee

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Hi, Ilya. You can check the compatibility for all optical devices using the Hardware/Software Compatibility Matrix.

Item 10338  is compatible with most of the G2 switches: X440-G2, X450-G2, X460-G2, X620, X670-G2, X690.  You can use it in up to half of the 10Gb ports.  The exact wording of the usage note is Populate every other SFP+ port in system, with a maximum of half the 10Gb SFP+ ports configured with 10GBASE-T transceivers. An adjacent SFP+ port should remain unused for every 10GBASE-T SFP+ installed.

10338 is not compatible with the 200 Series switches.

Hope that helps.

Larry Kunz
Information Development
Extreme Networks
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Ilya Semenov

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Hello, Larry,

many thanks for your reply. Correct me if I have understood it wrong:

For example, in X620-8x I can use only 410GBASE-T SFP+  and 4 other optical transceivers like 10GbSR?

So, for X670-G2 I can use 24 
10GBASE-T SFP+  and 24 optical transceivers like 10GbSR/LR/LRM?

Phrase "remain unused" is confusing me a little bit...

Thanks


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Grosjean, Stephane, Employee

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Hi,

In that context, "remain unused" means "empty".
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Ilya Semenov

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Hi, Stephane,

Sad, but predictable. It is because of power limitations? I know that 10GBASE-T transceivers have high power consumption...
(Edited)
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Grosjean, Stephane, Employee

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Hi,

The 10GBase-T SFP+ are not compliant with MSA Type-II specifications, they use more power. Way more. But the main issue is that they get very hot, and that can affect adjacent transceivers. If you test, you may see them working fine, but overtime it's not so sure...

If I remember correctly, in the past I saw the same recommendations for the first-gen of 1G-ZX, then 10G-ZR (for various vendors, I was then working for a reseller).
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Ilya Semenov

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Thanks, that is very interesting.