[f-nsp] XMR 10G speed issue

[Mike Allen]

Niels is thinking the same thing I was, it seems like a SFM problem, or
possibly a traffic manager on a module.  If you have a support contract, I
would say open a ticket.  I can't think of anything in the config that
would be that different from RX to MLX, other than maybe jumbo frames?

Mike


On Mon, Feb 10, 2014 at 5:24 PM, Niels Bakker
<niels=foundry-nsp at bakker.net>wrote:

> * rens at yisp.nl (Rens Ariens - YISP) [Thu 23 Jan 2014, 16:08 CET]:
>
>  We replaced one of our Brocade RX devices with a Brocade XMR. Beside some
>> small syntax changes we copied its config (some basic BGP and OSPF) to the
>> XMR. We now see the issue that from 6+ Gbit on a 10GE port single-session
>> transfers (simple wget) slow down below 1GE speeds. The port can and will
>> reach 8-9 Gbit without packet loss, but single-session wgets will slow down
>> further. We currently have to keep them below 6.5Gbit to prevent any
>> possible impact.
>>
>> Note: this is in a LAG, our non-LAG ports are currently not pushing
>> enough traffic to test this quickly.
>>
>> Anyone an idea what we are missing / forgetting?
>>
>
> How many switch fabric modules do you have?  The symptoms sound as if you
> have one too few.  You should see that in "show sfm-utilization all".  And
> check that you have enough lanes up with "show sfm-links all | i DOWN"
> although you hint that you rebooted a few times so that should be ok.
>
>
>         -- Niels.
>
> --
> _______________________________________________
> foundry-nsp mailing list
> foundry-nsp at puck.nether.net
> http://puck.nether.net/mailman/listinfo/foundry-nsp
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/foundry-nsp/attachments/20140210/ab0445ea/attachment.html>