One way to do this is to make a lustre conf file in etc/ modprobe.d

On Fri, Oct 3, 2025 at 12:48 PM Sonia Sharma via lustre-discuss <
[email protected]> wrote:

> Hello Dear Lustre Community
>
> I was wondering if there is some setting/way to make a Lustre Client use
> only a specific NIC to route its LNet messages from even when multiple NICs
> on that host are configured with the same LNet network.
>
> For example, let’s say I have a host with this below LNet configuration,
> then is there a way that I can have the Lustre client to use only “
> *10.30.201.26@tcp*” for all its communication
>
> *[node1]# lnetctl net show*
> *net:*
> *    - net type: lo*
> *      local NI(s):*
> *        - nid: 0@lo*
> *          status: up*
> *    - net type: tcp*
> *      local NI(s):*
> *        - nid: 10.30.201.26@tcp*
> *          status: up*
> *          interfaces:*
> *              0: enp1s0*
> *        - nid: 10.30.201.10@tcp*
> *          status: up*
> *          interfaces:*
> *              0: enp1s0:10269*
> *        - nid: 10.30.202.241@tcp*
> *          status: up*
> *          interfaces:*
> *              0: enp1s0:10257*
>
> Best regards
> Sonia
>
> Confidential – Oracle Internal
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