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Forum Discussion
KirbyKB
Feb 07, 2025Aspirant
Unable to set SFP+ port to 10Gb negotiation on MS510TX
Hi, Since the peer device only support manual link speed. Is there any way to configue the MS510TX switch to 10Gb? Thanks,
- Feb 07, 2025
Found that is peer SFP module issue, case closed
schumaku
Feb 07, 2025Guru - Experienced User
KirbyKB wrote:
Is there any way to configue the MS510TX switch to 10Gb?
No, and it's not required.
KirbyKB wrote:
Since the peer device only support manual link speed.
Are we facing fiber or copper SFP+ modules here?
On Ethernet copper links, IEEE clearly requires (mandtory) that the link speed -must- be negotiated for link speeds from 1000M and up (faster).
On fiber links there is -no- link speed negotiation, the default speed is used. So the only exception you might have to worry are 10G fiber modules, but you need a 1G link only. The solution is -not- using a 10G module, but install a 1G module instead.
Does this cause an issue, or is this some (likely outdated) idea or assumption that you "have" to define the link speed?
KirbyKB
Feb 07, 2025Aspirant
Since it shows link down when I set to auto.
Therefor on the MS510TX I would only able to set link speed to manual 1Gb Full and does not able to set to 10Gb Full.
- KirbyKBFeb 07, 2025Aspirant
Fiber SFP+
- schumakuFeb 07, 2025Guru - Experienced User
KirbyKB wrote:
Therefor on the MS510TX I would only able to set link speed to manual 1Gb Full and does not able to set to 10Gb Full.
This is only to change a 1G/10G capable SFP+ fiber module to behave like a 1G one.
KirbyKB wrote:
Since it shows link down when I set to auto.
Standard fiber install troubleshooting required. Unlikely a config issue on the switch.
- Fibers measured and validted?
- Appropriate modules installed on both ends (same fiber tech single vs multi mode, same frequency aka. colour, ...)?
- Loopback TX and RX does lead to a link LED indication, on both near end and far end?
Which SFP+ module(s) make and model(s) involved?
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