CentOS - Jul 2019 - Anyone with RedHat Subscription?

Does Anyone with a RedHat subscription able to give a hint as to what 
the solution to the following knowledgebase article is:

https://access.redhat.com/solutions/2801051

I'm having a similar issue with an SFP on a Centos host, and am 
searching for a way to view Optical RX/TX Power on the SFP.

 From the switch side, I'm not seeing any RX Power from the Centos host.

Thanks in advance

Giles

This is kinda of why it makes sense to purchase at least one license.

I would start with a loop back test on both ends. Dirty ports happen.

Did you grab the most recent version of ethtool and build it?
> -----Original Message-----
> From: CentOS <centos-bounces at centos.org> On Behalf Of Giles
Coochey
> Sent: Tuesday, July 2, 2019 9:19 AM
> To: CentOS mailing list <centos at centos.org>
> Subject: [CentOS] Anyone with RedHat Subscription?
> 
> Does Anyone with a RedHat subscription able to give a hint as to what
> the solution to the following knowledgebase article is:
> 
> https://access.redhat.com/solutions/2801051
> 
> I'm having a similar issue with an SFP on a Centos host, and am
> searching for a way to view Optical RX/TX Power on the SFP.
> 
>  From the switch side, I'm not seeing any RX Power from the Centos
host.
> 
> Thanks in advance
> 
> Giles
> 
> 
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos

Their "resolution" is: Update to RHEL 7 to get the more recent ethtool
output format.

You should be able to build a newer ethtool from source (or depending on
your NIC manufacturer, they may supply a tool with more recent features.
Solarflare, for example, provides 'sfctool', basically new ethtool
features
for old kernels).


Thanks,

Scott


On Tue, Jul 2, 2019 at 8:19 AM Giles Coochey <giles at coochey.net> wrote:
> Does Anyone with a RedHat subscription able to give a hint as to what
> the solution to the following knowledgebase article is:
>
> https://access.redhat.com/solutions/2801051
>
> I'm having a similar issue with an SFP on a Centos host, and am
> searching for a way to view Optical RX/TX Power on the SFP.
>
>  From the switch side, I'm not seeing any RX Power from the Centos
host.
>
> Thanks in advance
>
> Giles
>
>
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos
>
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On 02/07/2019 14:28, Jason Pyeron wrote:
> This is kinda of why it makes sense to purchase at least one license.
>
> I would start with a loop back test on both ends. Dirty ports happen.
>
> Did you grab the most recent version of ethtool and build it?
OK, so this is a third party product that is built on Centos/RHEL, the 
product provider does not allow us to install/modify stuff. So we're 
stuck with the tools on the system and cannot make/build modifications 
on it, so in fact we have no Centos nor RedHat in this environment, so I 
was just curious to hear upstream's view on what a possible solution 
might be.

We have a plan to do many things as part of the diagnosis, but I'm 
currently performing an information gathering exercise to discern the 
other of our future steps.

I have received an answer to my query that the optical RX/TX 
inforrmation is only available on RHEL 7 and not on RHEL 6. We will 
therefore look to boot this host into diagnostic mode for further 
troubleshooting.
>> -----Original Message-----
>> From: CentOS <centos-bounces at centos.org> On Behalf Of Giles
Coochey
>> Sent: Tuesday, July 2, 2019 9:19 AM
>> To: CentOS mailing list <centos at centos.org>
>> Subject: [CentOS] Anyone with RedHat Subscription?
>>
>> Does Anyone with a RedHat subscription able to give a hint as to what
>> the solution to the following knowledgebase article is:
>>
>> https://access.redhat.com/solutions/2801051
>>
>> I'm having a similar issue with an SFP on a Centos host, and am
>> searching for a way to view Optical RX/TX Power on the SFP.
>>
>>   From the switch side, I'm not seeing any RX Power from the Centos
host.
>>
>> Thanks in advance
>>
>> Giles
>>
>>
>> _______________________________________________
>> CentOS mailing list
>> CentOS at centos.org
>> https://lists.centos.org/mailman/listinfo/centos
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos

On 02/07/2019 14:35, Scott Silverman wrote:
> Their "resolution" is: Update to RHEL 7 to get the more recent
ethtool
> output format.
>
> You should be able to build a newer ethtool from source (or depending on
> your NIC manufacturer, they may supply a tool with more recent features.
> Solarflare, for example, provides 'sfctool', basically new ethtool
features
> for old kernels).
>
I was a bit economical with the situation in full in my original post.

This system is using third-party repo's, i.e. neither Centos / RedHat, 
although it is clearly based on Centos. The repo's do not have any 
development tool-chains, so we would have to put together another 
system, build ethtool on that, create an rpm and then invalidate the 
third-parties warranty by installing it on the production system.

I think we'll just boot into diagnostic mode and see what we can discern 
from there.

On 7/2/19 6:18 AM, Giles Coochey wrote:
> Does Anyone with a RedHat subscription able to give a hint as to what 
> the solution to the following knowledgebase article is:
> 
> https://access.redhat.com/solutions/2801051
You only need a Red Hat account, not subscription. I can read it after 
logging in my Red Hat account, and I have no subscription of any product.

With a free Red Hat account you can also get free RHEL for development 
purposes (do read the terms).

-- 
Elliot

On Tue, Jul 2, 2019 at 8:28 AM Jason Pyeron <jpyeron at pdinc.us> wrote:
> This is kinda of why it makes sense to purchase at least one license.
>
Red Hat does now offer free developer subscriptions which includes access
to the Red hat Customer Portal. You officially need a business or
enterprise email address, which I verified when they rejected my personal
gmail address the first time. It recommended that I change it to a business
or enterprise one, but instead I just used a gmail supported + alias (
me+redhat at gmail.com ), which Red hat accepted. (
https://gmail.googleblog.com/2008/03/2-hidden-ways-to-get-more-from-your.html )
It's very worthwhile to have a Red Hat Dev Subscription so you can try
newer releases before they get released downstream by CentOS and others,
and also to get access to otherwise hidden subscriber content.