[Mikrotik] Can't get fiber to work on CCR1036-12G-4S

JAHANZAIB SYED aacable at hotmail.com
Tue Dec 30 10:17:34 CST 2014


I am also facing issue that SFP didn't worked with CCR1036-4s-12g
Auto Negotiate didn't worked. Manually setting up link to 1GB activated the link light, but no data passing. only TX showed few packets but no RX light.

Tried all the possible workarounds mentioned here there and everywhere, but no use. :(


Regards, 
SYED JAHANZAIB  








 > Date: Mon, 29 Dec 2014 11:26:45 -0600
> From: tetherow at shwisp.net
> To: mikrotik at mail.butchevans.com
> Subject: Re: [Mikrotik] Can't get fiber to work on CCR1036-12G-4S
> 
> Try setting sfp-rate-select=low on the interface
> 
> On 12/27/2014 10:01 AM, ralph wrote:
> > I posted this on the MT forum, but I realize that many do not read them, and
> > I could really use some help finding an answer
> >
> >
> > I have a CCR1036-12G-4S (ROS 6.23 BL 3.20) as my edge router. Actually using
> > it as a switch right now but planning to migrate the duties of my 386 based
> > unit (ROS 4.16) over to this to save power and eliminate moving parts.
> >
> > My Metro Ethernet comes in on multimode fiber and we purchased this card to
> > allow us to connect it to the 386 based box.
> > http://www.alliedtelesis.com/media/data ... 1sx_ds.pdf
> >
> > It has worked great but it is time to update. I have tried twice to move
> > this fiber circuit over to the CCR but have been unable to get it to work.
> >
> > Yesterday I was thrown off track for several hours by the bug where the
> > CCR's LED assignments get boogered and the LEDs for all SFP ports were
> > flashing. The forum helped a lot with finding that. They somehow were mapped
> > to ETH1.
> >
> > So anyway, I did all the normal tests on my fiber jumpers, swapping SFPs etc
> > (I tried a Dell one and a Transition Networks one).
> > I even had the crew at the data center go over all the patch cables involved
> > with getting me over to the demarcation of the fiber (a Ciena layer 3
> > switch) just in case. All looked fine. I could never even get the CCR to say
> > the link was up until I turned off auto-negotiation on the CCR. I do not
> > have access to the Ciena- belongs to fiber provider.
> >
> > After that, the link came up and I saw received traffic on the interface.
> > But never saw more than 3 transmit packet attempts.
> >
> > Plugged fiber back to the 386 unit and things worked fine. Back to the CCR-
> > Nothing. I did try several setting changes on the SFP port but nothing
> > worked any better. I did make sure the SFP port was added to the bridge with
> > the Ethernet ports and I did try all 4 SFP ports.
> >
> > We are all stumped. Does anyone have any suggestions? Shouldn't fiber "just
> > work", especially if it is just moving from one MT to another?
> >
> > I have checked the release notes for all firmware loads and can't find
> > anything about the SFP port at all.
> >
> > Any Ideas????
> >
> >
> > Thanks
> >
> > Ralph
> >
> >
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> >
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