{
    "mode": "man",
    "parameter": "RDMA-SYSTEM",
    "section": "8",
    "url": "https://www.chedong.com/phpMan.php/man/RDMA-SYSTEM/8/json",
    "generated": "2026-05-30T10:09:34Z",
    "synopsis": "rdma [ OPTIONS ] sys  { COMMAND | help }\nOPTIONS := { -V[ersion] | -d[etails] }",
    "sections": {
        "NAME": {
            "content": "rdma-system - RDMA subsystem configuration\n",
            "subsections": []
        },
        "SYNOPSIS": {
            "content": "rdma [ OPTIONS ] sys  { COMMAND | help }\n\n\nOPTIONS := { -V[ersion] | -d[etails] }\n",
            "subsections": [
                {
                    "name": "rdma system show",
                    "content": ""
                },
                {
                    "name": "rdma system set netns NEWMODE",
                    "content": ""
                },
                {
                    "name": "rdma system help",
                    "content": ""
                }
            ]
        },
        "DESCRIPTION": {
            "content": "",
            "subsections": [
                {
                    "name": "rdma system set - set RDMA subsystem network namespace mode",
                    "content": ""
                },
                {
                    "name": "rdma system show - display RDMA subsystem network namespace mode",
                    "content": "NEWMODE - specifies the RDMA subsystem mode. Either exclusive or shared.  When user wants to\nassign dedicated RDMA device to a particular network namespace, exclusive mode should be set\nbefore creating any network namespace. If there are active network namespaces and if one or\nmore RDMA devices exist, changing mode from shared to exclusive returns error code EBUSY.\n\nWhen RDMA subsystem is in shared mode, RDMA device is accessible in all network namespace.\nWhen RDMA device isolation among multiple network namespaces is not needed, shared mode can\nbe used.\n\nIt is preferred to not change the subsystem mode when there is active RDMA traffic running,\neven though it is supported.\n\n"
                }
            ]
        },
        "EXAMPLES": {
            "content": "rdma system show\nShows the state of RDMA subsystem network namespace mode on the system.\n\nrdma system set netns exclusive\nSets the RDMA subsystem in network namespace exclusive mode. In this mode RDMA devices\nare visible only in single network namespace.\n\nrdma system set netns shared\nSets the RDMA subsystem in network namespace shared mode. In this mode RDMA devices are\nshared among network namespaces.\n",
            "subsections": []
        },
        "SEE ALSO": {
            "content": "rdma(8), rdma-link(8), rdma-resource(8), networknamespaces(7), namespaces(7),\n\n",
            "subsections": []
        },
        "AUTHOR": {
            "content": "Parav Pandit <parav@mellanox.com>\n\n\n\niproute2                                     06 Jul 2017                              RDMA-SYSTEM(8)",
            "subsections": []
        }
    },
    "summary": "rdma-system - RDMA subsystem configuration",
    "flags": [],
    "examples": [
        "rdma system show",
        "Shows the state of RDMA subsystem network namespace mode on the system.",
        "rdma system set netns exclusive",
        "Sets the RDMA subsystem in network namespace exclusive mode. In this mode RDMA devices",
        "are visible only in single network namespace.",
        "rdma system set netns shared",
        "Sets the RDMA subsystem in network namespace shared mode. In this mode RDMA devices are",
        "shared among network namespaces."
    ],
    "see_also": [
        {
            "name": "rdma",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/rdma/8/json"
        },
        {
            "name": "rdma-link",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/rdma-link/8/json"
        },
        {
            "name": "rdma-resource",
            "section": "8",
            "url": "https://www.chedong.com/phpMan.php/man/rdma-resource/8/json"
        },
        {
            "name": "networknamespaces",
            "section": "7",
            "url": "https://www.chedong.com/phpMan.php/man/networknamespaces/7/json"
        },
        {
            "name": "namespaces",
            "section": "7",
            "url": "https://www.chedong.com/phpMan.php/man/namespaces/7/json"
        }
    ]
}