Hi Guys,

after ROS 6.11 one can "tune" what is advertised on Copper Gigabit Ethernet
ports ie you can disable certain speed and duplex advertisments when
auto-negotiating...

Regarding MT Switch Chips.. .  there can be Duplex and Speed negotiation
issues particularly when talking with Licenced Radio Kit......  only advice
would give is upgrade your firmware ( Bootloader) and OS  Particularly on
Rb1xxxx models and RB2xxx / RB75XX models.

a word of warning...
Steer clear of ports 12& 13 on RB11xxx Boards...  and ports 9 and 10 on
RB1200 boards as these perform less on single connections than the other
ports on the system.. ( other ports are directly attached to the CPU
network controler)  basically on a 1200...  you will get 10x Routed
throughput between ports any port 1-5 (switch chip) and 6,7,8 compared with
throughput to or from ether 9 and 10.

CCRs and Decent X86 Routers dont suffer from that particular driver
issue...

On x86 with Intel NICs  or CCR models ...  with Gigabit ports..  they seem
to behave them selves...  DUplex and Speed Setting on these work ok in my
experience...

Hope this helps...
Tom Smyth



On Wed, Aug 27, 2014 at 12:59 PM, Matt Ryan <[email protected]> wrote:

> On 27 August 2014 12:14, Richard Halfpenny <
> [email protected]> wrote:
>
>> On 27/08/2014 10:58, Peter Knapp wrote:
>> > There are various firmware issues with early V6 on RB2011’s.
>> >
>> > If you update them past 6.11 (or it might be 6.14) the issue “goes
>> away”.
>> >
>> > We use them gig port auto neg into FTTC modems without issue in this
>> fashion
>>
>> Only had problems with RB951G (no RB2011's deployed, yet).  Recently
>> tried 6.11 which adds ability to specify advertised modes for copper
>> ports but no joy.  Will give 6.19 a go later.
>>
>
>
> Mikrotik apparently stated this was a hardware issue. Newer devices don't
> have the problem.
>
> http://forum.mikrotik.com/viewtopic.php?f=3&t=70166&;
> hilit=negotiation&start=50#p394584
>
>
> Matt.
>



-- 
Kindest regards,
Tom Smyth

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