use different SFP types at same switch

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05-13-2020 02:00 AM
I have a question about Fiber SFPs, SFPs have many different types ( Singlemode, multimode, LC, SC, .... ), so I asked if I can use different types of SFP at the same switch
as example, can I use say LC SFP at one port, and at same switch use SC SFP for other port
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05-13-2020 02:01 AM
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05-13-2020 02:10 AM
Yes Leo this is what I mean .... so no rule to make me use the same SFPs type at all switch .... each port use SFP type depend on the other side of this port ... so maybe one port use Singlemode LC and the other port at same switch use multimode SC without any problem, this is you mean, right?
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05-13-2020 02:26 AM
@haytham elsamadony wrote:
so maybe one port use Singlemode LC and the other port at same switch use multimode SC without any problem
No, this is not going to work.
Both ends must be on the same wavelength, i. e. SM and SM or MM and MM.
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05-13-2020 08:22 AM - edited 05-13-2020 08:23 AM
Yes you can.
(BTW, what I believe Leo has in mind, the two sides of a fiber link, need compatible transceivers. But on the same switch, you can use whatever SFP, in whatever SFP ports, the switch supports. [NB: not all switches support transceivers of the same type, for example, there might be some SFP transceivers that will not work in any of the switch's SFP ports. Further, non-Cisco SFPs can be hit or miss whether they work, and the switch might require a "hidden" command to allow any of them to, perhaps, work at all.] This is much, in concept, like you can mix 10, 100 or gig copper Ethernet on a switch's triple speed Ethernet ports, each might have different cat grade cable in them too although suitable for the "speed" being used.)
