On 1/9/23 08:21, Hrvoje Popovski wrote:
On 5.1.2023. 18:43, Hrvoje Popovski wrote:
On 4.1.2023. 14:20, Ivo Chutkin wrote:
On 2.1.2023 г. 16:58 ч., Hrvoje Popovski wrote:
On 28.12.2022. 20:21, Stuart Henderson wrote:
On 2022-12-28, Hrvoje Popovski <hrv...@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 ...

Hi Hrvoje,

Can you try setting NIC to use speed 1G since it is SFP, not 10G SFP+
module.
My experience is that "media: Ethernet autoselect" not always work.


Hi,

yes that's one of the problems. I couldn't set media to 1000baseLX and
ifconfig ix0 media only showed me autoselect, even when BiDi was
inserted into nic.

Maybe that's problem with x552 but i didn't have x520 near me at that time.

Good thing is that BiDi sfp's arrived and I will play with them.


Hi all,

It seems that ix(4) is having problems with 1G BiDi sfp. I've tested
FS.COM 1G BiDi and they are working on mikrotik and some switches but on
OpenBSD I'm getting "status: no carrier" what ever I do.
I've tried:
advertise 1G without auto-negotiation and speed 1Gbps full duplex
advertise 1G with auto-negotiation
With those sfp's in OpenBSD I just can't disable auto-neg or configure
media to advertise 1G full-duplex.
With normal 1G sfp everything is working as expected on OpenBSD ix(4).

For link to be UP between network equipment with 1G BiDi i needed to
configure interfaces to advertise 1G without auto-negotiation and speed
1Gbps full duplex.

On other hand 10G BiDi is working as expected with auto negotiation,
means that I didn't need to configure anything for link to be up.



1G BiDi
OpenBSD
ix0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
         lladdr a0:36:9f:2e:96:a0
         index 1 priority 0 llprio 3
         media: Ethernet autoselect
         status: no carrier
         transceiver: SFP LC, 1490 nm, 10.0km SMF
         model: FS SFP-GE-BX rev A0
         serial: F2130238999, date: 2022-03-28
         voltage: 3.28 V, bias current: 12.90 mA
         temp: 41.18 C (low -10.00 C, high 80.00 C)
         tx: -6.42 dBm (low -10.00 dBm, high -2.00 dBm)
         rx: -7.24 dBm (low -23.98 dBm, high -2.00 dBm)
         inet 10.255.1.3 netmask 0xffffff00 broadcast 10.255.1.255
ix0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
         lladdr a0:36:9f:2e:96:a0
         index 1 priority 0 llprio 3
         media: Ethernet autoselect
         status: no carrier
         supported media:
                 media autoselect
         inet 10.255.1.3 netmask 0xffffff00 broadcast 10.255.1.255


mikrotik
                     name: sfp-sfpplus1
                   status: no-link
       sfp-module-present: yes
              sfp-rx-loss: no
             sfp-tx-fault: no
                 sfp-type: SFP-or-SFP+
       sfp-connector-type: LC
       sfp-link-length-sm: 10km
          sfp-vendor-name: FS
   sfp-vendor-part-number: SFP-GE-BX
      sfp-vendor-revision: A0
        sfp-vendor-serial: F2040345575
   sfp-manufacturing-date: 22-04-06
           sfp-wavelength: 1310nm
          sfp-temperature: 34C
       sfp-supply-voltage: 3.265V
      sfp-tx-bias-current: 9mA
             sfp-tx-power: -6.333dBm
             sfp-rx-power: -6.203dBm
          eeprom-checksum: good




10G BiDi
OpenBSD
ix0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
         lladdr a0:36:9f:2e:96:a0
         index 1 priority 0 llprio 3
         media: Ethernet autoselect (autoselect rxpause,txpause)
         status: active
         transceiver: SFP LC, 1270 nm, 10.0km SMF
         model: FS SFP-10G-BX
         serial: F2220232065, date: 2022-06-28
         voltage: 3.32 V, bias current: 39.09 mA
         temp: 41.07 C (low -43.00 C, high 88.00 C)
         tx: -1.68 dBm (low -10.00 dBm, high 2.00 dBm)
         rx: -1.70 dBm (low -16.50 dBm, high 2.50 dBm)
         inet 10.255.1.3 netmask 0xffffff00 broadcast 10.255.1.255
ix0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
         lladdr a0:36:9f:2e:96:a0
         index 1 priority 0 llprio 3
         media: Ethernet autoselect (autoselect rxpause,txpause)
         status: active
         supported media:
                 media autoselect
         inet 10.255.1.3 netmask 0xffffff00 broadcast 10.255.1.255


mikrotik
                     name: sfp-sfpplus1
                   status: link-ok
                     rate: 10Gbps
              full-duplex: yes
          tx-flow-control: no
          rx-flow-control: no
       sfp-module-present: yes
              sfp-rx-loss: no
             sfp-tx-fault: no
                 sfp-type: SFP-or-SFP+
       sfp-connector-type: LC
       sfp-link-length-sm: 10km
          sfp-vendor-name: FS
   sfp-vendor-part-number: SFP-10G-BX
        sfp-vendor-serial: F2220214175
   sfp-manufacturing-date: 22-08-04
           sfp-wavelength: 1330nm
          sfp-temperature: 48C
       sfp-supply-voltage: 3.302V
      sfp-tx-bias-current: 45mA
             sfp-tx-power: -1.705dBm
             sfp-rx-power: -1.124dBm







Hrvoje,

I may be inquiring about an item that you have already provided but would it be possible for you to supply a copy of your hostname.ix0 config file. I have been unable to locate this bit of info while perusing this particular thread.

Thank you much.

---
Boyd

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