perfSONAR User Q&A and Other Discussion

[Shawn McKee <>]

We got a patch a while ago to setup this option.  Not sure it it still maps onto the current version of the driver.

I am including it here FYI.  

Shawn

On Tue, Apr 21, 2015 at 11:53 AM, Garhan Attebury <> wrote:

In the past you could pass the "allow_unsupported_sfp=1" option to modprobe and use non Intel optics — at least this was true in older X520-SR2 cards we have in some RHEL 6 hosts (and some FreeBSD hosts). Might be worth a try, though a quick google shows this may have been ‘fixed’ in newer kernels and not work any more.

You could test with:

modprobe -r ixgbe
modprobe ixgbe allow_unsupported_sfp=0


As for NICs supporting Cisco optics, I’ve got no experience. I can say I’ve been plenty happy with Solarflare SFN5152F cards and Finisar optics in multiple perfsonar hosts.


Garhan Attebury
Holland Computing Center
University of Nebraska-Lincoln
402-472-7761

> On Apr 21, 2015, at 10:37 AM, Greg Clarkson <> wrote:
>
> When I configured and set up the last PerfSonar install I used the Intel X520-SR2 this will only support Intel SFP+ module. I could never make it work with any CISCO 10 GiG SFP+ modules.
> Is there a different 10 Gig NIC configured in PerfSonar I could use that would support CISCO SFP+ 10 GiG
>
>
> Thank You
> Greg Clarkson

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