[f-nsp] XMR 10G speed issue

[Niels Bakker]

* 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.

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