Hi, I think this is probably what you're after, though I could be wrong: https://wiki.lustre.org/LNet_Router_Config_Guide#ARP_flux_issue_for_MR_node
Cheers, Alastair. On Fri, 3 Oct 2025, Sonia Sharma via lustre-discuss wrote:
[EXTERNAL EMAIL] Thanks, Tim for a quick response. I should have mentioned the specific scenario - In this case, lustre client is co-located with an MDS lustre server and the rest of the nice on the host are specifically for MDTs. I believe the lustre.conf approach wouldn’t work in that case, or there is still a way ? Best Sonia Confidential – Oracle Internal From: Tim Schnedler <[email protected]> Date: Friday, October 3, 2025 at 11:54 AM To: Sonia Sharma <[email protected]> Cc: lustre-discuss <[email protected]> Subject: [External] : Re: [lustre-discuss] Lustre Client pinned to use specific NIC on host 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]<mailto:[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 _______________________________________________ lustre-discuss mailing list [email protected]<mailto:[email protected]> http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org<https://urldefense.com/v3/__http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org__;!!ACWV5N9M2RV99hQ!JK-5U3bPxJEQg0wm-92Mtqb9akrLlnZ1vY2azcQ5KmoD9Azb5QAtP0Vxm1xhag_lMu1sQU3Zs6lmaLEGcltmBmWysWgLsw$>
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