Chris, can you open a issue in GitHub regarding this and we can trace it there. If you prefer, let me know and I'll open it.
Thanks,
Victor
----- Original message -----
From: "Christopher J. Walker" <c.j.wal...@qmul.ac.uk>
To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>
Cc:
Subject: Re: [xcat-user] Setting MTU
Date: Tue, Feb 21, 2017 9:30 AM
We are on 2.12.4.
I think my problem is that it performs as documented and works for DHCP.
"confignics -s" however doesn't then grab the MTU.
Chris
On 21/02/17 13:36, Victor Hu wrote:
> Hi Chris,
>
> We had a contribution from the community that added support for this
> late last year to add support for MTU on the networks table.
> https://github.com/xcat2/xcat-core/pull/1933 Looks like it was
> integrated in the 2.12.4 release or newer.
>
> I'm not sure which version of xCAT you are currently on, but you can
> take a look at that pull request and see if it satisfies your requirements.
>
> Thanks,
> Victor
>
>
>
> ----- Original message -----
> From: "Christopher J. Walker" <c.j.wal...@qmul.ac.uk>
> To: "xcat-user@lists.sourceforge.net" <xcat-user@lists.sourceforge.net>
> Cc:
> Subject: [xcat-user] Setting MTU
> Date: Tue, Feb 21, 2017 6:30 AM
>
> I'm trying to configure the MTU to be 9000 for Centos 7 hosts on our
> internal network. I'm using xCAT 2.12.4
>
>
> A way that works is to set the MTU explicitly on a network card basis -
> so I do:
>
> nicextraparams.ens1f0=MTU=9000
> and add
> "confignics -s"
> to the postscripts for the node.
>
> However we have a number of different hardware types - and the internal
> network card name therefore changes.
>
> It seems cleaner to set the MTU in the MTU column of the networks table,
> instead of explicitly listing each network card type. For testing, I've
> removed the "nicextraparams.ens1f0=MTU=9000" and set the MTU of 9000 in
> the networks table. DHCP now correctly sets the MTU to be 9000, but this
> is then removed by "confignics -s" - resulting in the default of 1500
> after install.
>
> Is this an oversight on my part, or a bug in confignics, or configeth
>
> Chris
> --
> Dr Christopher J. Walker
> ITS Research
> Queen Mary University of London, E1 4NS
>
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--
Dr Christopher J. Walker
ITS Research
Queen Mary University of London, E1 4NS
+44 20 7882 5969
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