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CCR1009 + RBFTC11 + DSL modem

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pszemkof
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Joined: Tue May 16, 2017 11:48 am
Location: PL

CCR1009 + RBFTC11 + DSL modem

Mon Jul 03, 2017 11:54 am

Hi,

I have CCR1009 running fine with DSL modem (DSL internet as backup) via FO link. Here is my setup:
  • CCR1009 - SFP+ port equipped with S-35LC20D
  • Patchcord FO: LC/LC SM 35m
  • cheap sfp media converter with 10/100/1000M link at copper side - model: MC220S, name: "10/100/1000M SFP Ethernet Converter" (cheap "black box with 6 leds, sfp socket and copper ethernet port" - I believe it's clone of tplink MC220) in SFP port: S53LC20D
  • Modem: ADSL modem from my telephone company ("NetiaSpot" cra*, but at least can be switched to modem mode)
I had only to disable auto-negotiation, and set rate to 1G on SFP+ port in CCR - looks like the MC220s use max available rate for SFP not the negotiated on copper port.
This setup work very good.

I got recently RBFTC11, so I wanted to replace the cheap MC220 with something better ;) (and wall-mounted - that's the primary reason of replacing something that work ok :D ) , but....
I moved the SFP module from MC220 to RBFTC11 , connected to modem (via PoE injector) and FO cable... and in winbox I got "no link" status, so I started to play with rate and eventually I got "link ok" at 100M (that's seems ok because the modem have 100M port only), I can see in port traffic tab that CCR is sending something but I don't see any replies from modem, so: I have traffic from router to modem but nothing back (from modem to router).

Here is dump of my settings from CCR (with RBFTC11):
Code: Select all
[admin@MT-ROUTER] /interface ethernet> monitor 1
                    name: WAN2-DSL-SFP+
                  status: link-ok
        auto-negotiation: disabled
                    rate: 100Mbps
             full-duplex: yes
         tx-flow-control: yes
         rx-flow-control: yes
      sfp-module-present: yes
             sfp-rx-lose: no
            sfp-tx-fault: no
                sfp-type: SFP-or-SFP+
      sfp-connector-type: LC
     sfp-link-length-9um: 20000m
         sfp-vendor-name: Mikrotik
  sfp-vendor-part-number: S-35LC20D
       sfp-vendor-serial: S1T35252500610
  sfp-manufacturing-date: 15-07-01
          sfp-wavelength: 1310nm
         sfp-temperature: 64C
      sfp-supply-voltage: 3.264V
     sfp-tx-bias-current: 29mA
            sfp-tx-power: -6.176dBm
            sfp-rx-power: -7.381dBm
                  eeprom: 0000: 03 04 07 00 00 00 40 00  00 00 00 03 0d 00 14 c8  ......@. ........
                          0010: 00 00 00 00 4d 69 6b 72  6f 74 69 6b 20 20 20 20  ....Mikr otik
                          0020: 20 20 20 20 00 00 00 00  53 2d 33 35 4c 43 32 30      .... S-35LC20
                          0030: 44 20 20 20 20 20 20 20  00 00 00 00 05 1e 00 a4  D        ........
                          0040: 00 1a 00 00 53 31 54 33  35 32 35 32 35 30 30 36  ....S1T3 52525006
                          0050: 31 30 20 20 31 35 30 37  30 31 20 20 68 b0 01 e6  10  1507 01  h...
                          0060: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                          0070: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                          0080: 64 00 d8 00 5f 00 dd 00  8c a0 75 30 88 b8 79 18  d..._... ..u0..y.
                          0090: c3 50 00 fa b9 8c 01 f4  1f 07 03 1a 18 a5 03 e8  .P...... ........
                          00a0: 1f 07 00 0c 18 a5 00 10  00 00 00 00 00 00 00 00  ........ ........
                          00b0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                          00c0: 00 00 00 00 3f 80 00 00  00 00 00 00 01 00 00 00  ....?... ........
                          00d0: 01 00 00 00 01 00 00 00  01 00 00 00 00 00 00 0e  ........ ........
                          00e0: 40 80 7f 80 3a 34 09 6c  09 8e 00 00 00 00 00 00  @...:4.l ........
                          00f0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
With working link with MC220S:
Code: Select all
[admin@MT-ROUTER] /interface ethernet> monitor 1
                    name: WAN2-DSL-SFP+
                  status: link-ok
        auto-negotiation: disabled
                    rate: 1Gbps
             full-duplex: yes
         tx-flow-control: yes
         rx-flow-control: yes
      sfp-module-present: yes
             sfp-rx-lose: no
            sfp-tx-fault: no
                sfp-type: SFP-or-SFP+
      sfp-connector-type: LC
     sfp-link-length-9um: 20000m
         sfp-vendor-name: Mikrotik
  sfp-vendor-part-number: S-35LC20D
       sfp-vendor-serial: S1T35252500610
  sfp-manufacturing-date: 15-07-01
          sfp-wavelength: 1310nm
         sfp-temperature: 64C
      sfp-supply-voltage: 3.264V
     sfp-tx-bias-current: 29mA
            sfp-tx-power: -6.196dBm
            sfp-rx-power: -7.266dBm
                  eeprom: 0000: 03 04 07 00 00 00 40 00  00 00 00 03 0d 00 14 c8  ......@. ........
                          0010: 00 00 00 00 4d 69 6b 72  6f 74 69 6b 20 20 20 20  ....Mikr otik
                          0020: 20 20 20 20 00 00 00 00  53 2d 33 35 4c 43 32 30      .... S-35LC20
                          0030: 44 20 20 20 20 20 20 20  00 00 00 00 05 1e 00 a4  D        ........
                          0040: 00 1a 00 00 53 31 54 33  35 32 35 32 35 30 30 36  ....S1T3 52525006
                          0050: 31 30 20 20 31 35 30 37  30 31 20 20 68 b0 01 e6  10  1507 01  h...
                          0060: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                          0070: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                          0080: 64 00 d8 00 5f 00 dd 00  8c a0 75 30 88 b8 79 18  d..._... ..u0..y.
                          0090: c3 50 00 fa b9 8c 01 f4  1f 07 03 1a 18 a5 03 e8  .P...... ........
                          00a0: 1f 07 00 0c 18 a5 00 10  00 00 00 00 00 00 00 00  ........ ........
                          00b0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                          00c0: 00 00 00 00 3f 80 00 00  00 00 00 00 01 00 00 00  ....?... ........
                          00d0: 01 00 00 00 01 00 00 00  01 00 00 00 00 00 00 0e  ........ ........
                          00e0: 40 e0 7f 80 39 d0 09 61  09 d0 00 00 00 00 00 00  @...9..a ........
                          00f0: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
Any suggestions?
I did tested other PoE injectors too - no change. ETH port led (on RBFTC11) is lit on/blink (green) - but that's all. The moment I swap for MC220S the comm kick in (Rx packet show up on graph).
I did read when I was researching the connection of DSL modem over FO link and I read that there might be MCs (media converters) that don't want work well in that kind of link. - Is this case?


Ps. Info for those wondering why the FO link to dsl modem: I have a main server rack "galvanic separated" from rest of network(s), only one copper cable is main power but this one is protected by few voltage surge protectors in fuse box.

In attachments is photo of MC220S.
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kraic
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Re: CCR1009 + RBFTC11 + DSL modem

Wed Aug 01, 2018 1:59 pm

I'm trying to connect CRS212 over optical cable with Rb FTC11 using 35LC20D modules. I can't get link ok at all. Tried to turn off auto neg.
Please help
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saper2
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Posts: 29
Joined: Sun Jun 14, 2015 2:00 pm

Re: CCR1009 + RBFTC11 + DSL modem

Wed Aug 01, 2018 4:29 pm

Disable auto negotiation, force link to 1G, full duplex, flow auto. Should work (don't forget about bridges, etc...).
What is other-side module? The 35LC20D is a Tx=1310nm , Rx=1550nm , on other side you have the 53LC20D (Tx=1550nm, Rx=1310nm).

Back to the starting topic post :)

I have figured it out. The problem is a chipset used for Ethernet-to-SFP conversion - The Qualcomm QCA8334 - it can't for unknown reason send anything when other-side port is SFP+ (with 1G module ofc).
Unfortunately those Qualcomm-based media converters (MC) becoming more popular and cheaper now, and those pushing out those older MC build on Realtek RTL8213M whose works fine with SFP+ ports on other side.

I'm attaching photos for those media converters :)

I did tested 3 media converters (MC): old MC220S (Realtek based), new MC220S (Qualcomm based), RBFTC11 (Qualcomm based) - Realtek-based worked fine in all combinations, while QCA only when on other side module was put into SFP port (no sfp/sfp+ port either).
I did test them with: CCR1009 (in SFP+ port), CRS226 (both SFP/SFP+ & SFP+ ports), CRS112 (SFP ports).


The QCA8334, can be configured by external EEPROM memory (93C46 :) ), I did look at QCA datasheet but the amount of registers is a bit too much for me :lol: - maybe the QCA need a little of reconfiguration to work fine with SFP+ ports on opposite side...
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kraic
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Re: CCR1009 + RBFTC11 + DSL modem

Wed Aug 01, 2018 6:42 pm

Thank you. I have same 31DLC20D modules on both sides.. I did auto neg= off, Flow=auto, Speed=1G, Full duplex=yes ..
https://ibb.co/kBUftz
https://ibb.co/m9MtDz
https://ibb.co/gYjftz

What can I try ..something else? Is there way to check if it works except Cable test?
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saper2
newbie
Posts: 29
Joined: Sun Jun 14, 2015 2:00 pm

Re: CCR1009 + RBFTC11 + DSL modem

Wed Aug 01, 2018 9:44 pm

Please decide, which modules you have...

For MikroTik S-31DLC20D - this is a standard duplex module. Have you upgraded routerboard firmware (System->Routerboard->Upgrade , then Reboot)?

If you don't have link then something is wrong with your cabling - test modules and MC it using a short duplex SM LC-LC pachcord (you can even use MM for test :D ). There should be some readings for Rx power (you should see more than -25dBm to get link).

RBFTC11 will work only when you have module in CRS212 in SFP cage (not SFP+). You can disable Flow control too.

btw. ibb.co don't work for me it kills my firefox when I open the link - so I don't saw your images. Paste info from console.
Please create new topic and/or ask moderator to move posts to it - because your problem don't relate to CCR1009, SFP+ ports and media converters.
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kraic
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Re: CCR1009 + RBFTC11 + DSL modem

Wed Aug 01, 2018 10:25 pm

Thank you for your answer. I did upgrade, don't worry. I use MT for 8 years. I made 10 optic links, and CRS Vlan tunneling, on this project. But on this link, I have to use this RbFTC11 and connect it to CRS212 to Sfp port, a and I used already 31DLC20D modules, and I'm using them here on this link too. I tried with short pachcords. I have Rx -26000db, and no Tx.
ibb.co works well on Chrome
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saper2
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Posts: 29
Joined: Sun Jun 14, 2015 2:00 pm

Re: CCR1009 + RBFTC11 + DSL modem

Wed Aug 01, 2018 11:32 pm

Well, if u work 8yr with MT then, then config is out of questions. So the left are bad SFPs, patchcord(s) or RBFTC11 - nothing more...

-26dBm - that's on edge of working (something dirty, or broken fiber?), ROS might show this as no link (in RB260v2 swos this show up as no link but the transmission is going on through port :lol: )

Replace modules for the ones that you sure are good, if u still get no link then patchcords or RBFTC11 is no good - nothing more comes to my mind. FO connections are simple like stick :wink:

You can try to test if you can link between those SFPs in CSR212 (first SFP in one cage, another in next cage and connect them with patchcord, then check in port(s) if there is a link and it's dBm power (the Rx)).

maybe u got lucky and hit a SFP (or RBFTC11) that somehow passed QC and then got broken (or you supplier pushed to you a broken hardware...)...
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kraic
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Re: CCR1009 + RBFTC11 + DSL modem

Fri Aug 10, 2018 5:20 pm

Patchord was bad, and it works now. It works with and without autoneg.
Thank you
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saper2
newbie
Posts: 29
Joined: Sun Jun 14, 2015 2:00 pm

Re: CCR1009 + RBFTC11 + DSL modem

Fri Aug 10, 2018 6:21 pm

Patchord was bad, and it works now. It works with and without autoneg.
Thank you
It always bad FO patchcord :lol:
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