SFP未识别

Sqwalish
Member

155

04-13-2016, 12:03 AM

I recently received a server (Quanta QSSC- 2ML) equipped with an integrated SFP slot. However, the motherboard fails to detect the SFP device. For context, it uses a 1310nm 1.25Gb SC interface. What might be causing this issue?

Sqwalish

04-13-2016, 12:03 AM #1

Strayn
Junior Member

04-14-2016, 12:46 AM

Eprom configuration seems unusual—why is it set to 1.25Gb instead of the expected 1000Mbit or 1Gb? Shouldn't it match the specifications? Checking the server's capabilities for SFP+ support and 1000Base compatibility would be wise. A 10GBASE SFP+ might be a better fit.

Strayn

04-14-2016, 12:46 AM #2

Reltzy
Member

111

04-15-2016, 11:33 PM

It shouldn't be an issue switching from SFP+ to regular SFP, right?

Reltzy

04-15-2016, 11:33 PM #3

It shouldn't be an issue switching from SFP+ to regular SFP, right?

KrozenFire
Member

124

04-16-2016, 12:01 AM

KrozenFire

04-16-2016, 12:01 AM #4

Sachsonia
Junior Member

04-16-2016, 04:04 AM

I verified compatibility with SFP+ modules, so I need to look for a different one. Appreciate the guidance!

Sachsonia

04-16-2016, 04:04 AM #5

I verified compatibility with SFP+ modules, so I need to look for a different one. Appreciate the guidance!

BlaizenBoy
Member

157

04-16-2016, 12:46 PM

The stated speed is 1.25Gbit, which is typically greater than the real data transfer rate.

BlaizenBoy

04-16-2016, 12:46 PM #6

The stated speed is 1.25Gbit, which is typically greater than the real data transfer rate.

nonrnonr
Member

241

04-17-2016, 03:48 AM

I've worked with SFPs for two decades. I understand SAN can have inconsistent performance. It seems they're running at full capacity now, which is impressive.

nonrnonr

04-17-2016, 03:48 AM #7

I've worked with SFPs for two decades. I understand SAN can have inconsistent performance. It seems they're running at full capacity now, which is impressive.

jReew
Member

04-17-2016, 11:46 AM

It's mainly the PHY rate that needs adjustment for overhead, with the real data rate reaching gigabit levels, much like SERDES operates.

jReew

04-17-2016, 11:46 AM #8

It's mainly the PHY rate that needs adjustment for overhead, with the real data rate reaching gigabit levels, much like SERDES operates.

Jazzy_Senpai
Member

180

04-17-2016, 08:45 PM

The term gigabit can refer to different rates depending on the encoding, but it often relates to 1.25Gbps when moving to higher speeds like 10G. At those levels, there isn’t a separate second physical layer, which is why it’s sometimes called 1.25G instead of a full 1.5 or 1.25Gb rate.

Jazzy_Senpai

04-17-2016, 08:45 PM #9