I am looking hardware like below, but for optic fiber.
Does VyOs work with optic fiber hardware?
I need fan-less hardware, bonus if can also plug additional ethernet cable or optic fiber for backup connection.
Get a box with SFP/SFP+/SFP28/QSFP+ slots and put in whatever optic you like.
Personally I prefer Mellanox NIC’s but Broadcom and Intel should work too.
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Just to be sure, because I haver never used any of them. Are we talking about devices like below? (random image from google)
PS How much performance decrease?
There is no performance decrease when it comes to selecting what kind of wire and technology you will be using.
The performance is the NIC itself but mainly (since VyOS is a softwarebased router) the CPU and RAM you use.
Most new gear today (except perhaps for the slowest CPU’s such as Intel N100 and similar) can do 10Gbps with ease. That is 20Gbps throughput (meaning 10G arriving on one NIC and is sent out on the second NIC at the same time as data arrives on the second NIC and is sent out on the first nic).
Personally I prefer RJ45 for up to 1Gbps and anything beyond I go for singlemodefiber.
I prefer singlemodefiber over multimodefiber because singlemodefiber can do ALL speeds while with multimode it depends on the quality of the cable (aka what rating it got like OM1, OM2, OM3 etc).
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ref. Hardware for optic fiber (part 2)
Continuing the discussion from Hardware for optic fiber :
My internet provider replayed to me I cant’ use solution from topic (part 1), because it is GPON and receiver has to be ONT. So I re-ask my first question. Maybe other kind of optic fiber ↔ ethernet ↔ router converter? Does it make sense to go in this direction?
PS Any way to open automatically closed topic instead of making new one?
To continue the discussion over, in the optical world you have Interfaces, transceivers and different fiber types. And not all of these fits together. as for the last part, the fiber you typically use “Singlemode” OS2 G652 fiber cable or one of its derivatives from a provider into your home/business. this is the for now mostly used fiber type deployed. The other type “Multimode” OM1/2/3 are a bit cheaper, but tops out on a few hundred meters of fiber distance.
As for the second part the tranciever, this has a few form-factors, and are often tied tightly to the speed of the connection. keep in mind that a fiber connection most of the time does not have any speed autodetection, so you need to use a transceiver built for the speed your provider uses.
The next thing to consider is the technology used on the fiber, on a fiber to the Home / Business setting Ethernet and GPON is the two most used technologies deployed. There are also OTN, but that is mostly used internal in large ISP networks and not deployed to the end customer.
Here is a table with the most normal carrier speeds of the different tranciever types.
There could be derivations from this table but that is not considered a normal deployment.
SFP - 100Mbit / 1Gbit
SFP+ - 10Gbit
SFP28 - 25Gbit
QSFP+ - 40Gbit
QSFP28 - 100Gbit
QSFP56 - 400Gbit
All SFP optical modules are using the same footprint and all QSFP modules share the same footprint.
When considering the Interface used you need to see that is supports the correct carrier speed of your connection and choose the correct nic with the correct footprint and speed support.
A thing to note here is that a nic with a QSFP connection can be used to house SFP interfaces by using a QSA adapter. this way you could eg. use 10G optics on a 40G nic. (but you need nic support for this)
As for your connection you specified that it is a GPON connection, this is not directly compatible with Ethernet, and a normal GPON ONT sfp will NOT work in a Ethernet nic. But it exists sfp/sfp+ modules to convert between them. These sfp’s are then acting as a “media converter” from GPON to Ethernet and is plugged into your equipment.
One ting to note here is that these modules might work, but it depends on the type of GPON used by your provider. you also need information from your provider about the GPON type/carrier speed and configuration used on their end. You could try searching “SFP ONT on a stick” to find more information on these kind of modules.
I Hope this answers some of your questions 
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Thank you for explanation! It helped to understand things, but I am still confuse, because I have never been doing this and internet provider doesn’t seem to want me help change they routers
Right now I have HL-4GMV2 – GPON ONT with 4 Gigabit LAN ports, WI-FI 2×2 5Ghz and 2×2 2.4Ghz, 2 VoIP FXS ports < HALNy NETWORKS .
WAN port: GPON SC/APC B+ 2.488Gbps Downstream 1.244Gbps Upstream
In the router I can read WAN info which tell me nothing. The router doesn’t provide too much configuration or info. Actually I can’t change literally anything for WAN.
|Transmiting Light Power:|2.5dBm |
|Receiving light power:|-18.4dBm |
|Working Voltage:|3281.8mV |
|Working Current:|12.014mA |
|Working Temperature:|58 C |
I assume I should focus on WAN port info from halny website.
Am I able to do something reasonable with this info?
It is (at least near me) quite normal that the ISP do not want you to changeout their CPE, one of the reasons why is that they then lack visibility on your side if you report an issue with your connection.
When a GPON device tries to joins the GPON network it need to “authenticate” the module to the network, this can be done multiple ways and differs from provider to provider. to find this on your CPE you need “root”/“super user” permissions and that is something the provider most of times dont hand out. You could talk to your provider to find out this authentication but i would not be surprised if they would not give it to you.
Also, if you’re in luck someone else has done things like this on your provider so it might work to try googleing it.
What i’ve done on multiple occasions is to get the provider to put the CPE into “bridge” mode, then your CPE will be a “L2 bridge” with all routing/wifi will be disabled on the CPE and you get a public ip on one of the devices switch-ports.
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Unfortunately device doesn’t have “bridge” mode. At least admin panel to which I have access is very limited. Like super limited.
It sounds a little like better not touch it and live with it, because it can became very hard to achieve.
This is also quite normal.
Setting the device to bridge-mode is something that often is needed to be initiated from your isp, so it might be possible to do if you call them …
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