Re: BiDi sfp in ix

On 28.12.2022. 20:21, Stuart Henderson wrote:
> On 2022-12-28, Hrvoje Popovski <hrvoje@srce.hr> wrote:
>> Hi all,
>>
>> I don't have much experience with BiDi sfp, so I'm asking you guys,
>> should openbsd ix work with 1G BiDi sfp.
>
> should do, yes.
>
> in case you're not aware, bidi transceivers come in different types, e.g.
> your MaxLink ML-S5531-20 transmits at 1550nm and receives at 1310nm, so
> must be paired with a transceiver that transmits at 1310nm and receives
> at 1550nm (e.g. the MaxLink model is ML-S3155-20) - do you have that?
>
> also, they should normally be used with single-mode fibre (due to how
> the bidi optics are coupled into the fibre they *can* also work with
> multimode fibre, though if you do that, insertion loss is high so
> distance is much more limited, plus it's even more sensitive to bending
> than usual in that case).
>
>

Hi,

everything is fine regarding transceiver and fiber. I've played with it
for few days with my ISP and that BiDI sfp works on mikrotik
RB5009UG+S+IN and cisco 2960 switch. On aruba 2540 (allow unsupported
transceiver), ibm switch and openbsd ix(4) it won't work.

I've ordered few BiDi sfp from fs.com and maybe my ISP will lend me
MaxLink sfp so I could test them in lab.

Thank you Stuart for information ...