I’ve had 2011’s with 1 bad port out of the box, and one with the heatsink 
rattling around in the case, but this is something different.

From: Adam Moffett via Af 
Sent: Friday, October 17, 2014 1:57 PM
To: [email protected] 
Subject: Re: [AFMUG] some devices won't talk to RB2011 GigE ports?


How did you figure that out?  Does it log something about the status of the 
switch controller.


  I've had many 2011's appear to crash for no apparent reason. Come to find 
out, the switch controllers are what crash from time to time. Sometimes all of 
the GigE ports stop working, other times it's the FastE ports. I'm not a fan of 
the 2011s at all.

  On 10/17/2014 9:44 AM, Ken Hohhof via Af wrote:

    6.13/3.14 on an RB2011iL.

    Yeah, likely the customers media converters are not Gig capable, they are 
pretty old, it was disconcerting not to be able to talk at 100M or even 10M 
though.  I’m more worried that it doesn’t seem to talk to a CTM-2 on a GigE 
port.  And who knows what else.

    From: Nate Burke via Af 
    Sent: Friday, October 17, 2014 9:32 AM
    To: [email protected] 
    Subject: Re: [AFMUG] some devices won't talk to RB2011 GigE ports?

    What ROS/Routerboard version?  Does the customers Media converter 
auto-negotiate, or does it only work at 1 speed?  It's been a while since I've 
used them, but the 1G converters I had were only 1000base on the Ethernet port, 
no auto.  



    On 10/17/2014 9:29 AM, Ken Hohhof via Af wrote:

      Yes, in this case the MT interface reported successfully negotiating 100 
Full, but never counted any rcv packets.

      From: Adam Moffett via Af 
      Sent: Friday, October 17, 2014 9:23 AM
      To: [email protected] 
      Subject: Re: [AFMUG] some devices won't talk to RB2011 GigE ports?


      Well....autonegotiation failures happen sometimes, but typically those 
work ok when you force the speed on the link.  In the case I'm thinking of, we 
could not get a working link no matter what.  It was quite awhile ago now, but 
I think it would report a link was up while the input counters never climbed 
above 0.  


        We have a couple devices that don't work with Mikrotik devices at all. 
Putting a switch in between fixes it 
        but not ideal.

        On Fri, Oct 17, 2014 at 10:14 AM, Adam Moffett via Af <[email protected]> 
wrote:

          Yes...maybe.  We had somebody not able to get link with an RB2011. I 
don't think we ever tried the 10/100 ports.  The customer ended up getting a 
different router. 



            Is there an issue with the GigE ports on Mikrotik RB2011 not 
talking to some
            devices no matter what settings you try?  I had this with a 
customer's
            copper/fiber media converter, moved it to a 10/100 port on the 2011 
and all
            was good.  Now I think I'm seeing the same thing with a CTM. 
Setting the
            GigE port to only negotiate 100M didn't work, no amount of playing 
with the
            settings worked, had to physically move it to a 10/100 port.

            If this is a known problem and not my imagination, what other 
Mikrotik
            devices share this issue?  If this had been an 1100 or CCR or CSR, 
I might
            not have had a 10/100 port available and I would have been stuck.












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