You are setting the “mp->flags = 0;” as (IF_STATUS_API_FLAG_LINK_UP & IF_STATUS_API_FLAG_ADMIN_UP == 0)
To ‘UP’ the interface: u32 flags = IF_STATUS_API_FLAG_ADMIN_UP; mp->flags = clib_host_to_net_u32 (flags); To ‘DOWN’ the interface: u32 flags = 0; mp->flags = clib_host_to_net_u32 (flags); -br Mohsin From: <vpp-dev@lists.fd.io> on behalf of Subrata Nath <subratanat...@gmail.com> Date: Tuesday, November 2, 2021 at 4:09 PM To: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io> Subject: [vpp-dev] VPP binary API to make interface state up HI, I am trying to implement the following vppctl command through C API. vpp version 20.09. vppctl set int ip addr host-eth3 10.22.6.20/24<http://10.22.6.20/24> vppctl set int state host-eth3 up First command i.e. to plumb the IP works fine through the program attached but to make the interface up, i am using vl_api_sw_interface_set_flags_t message. vl_api_sw_interface_set_flags_t *mp; mp = vl_msg_api_alloc (sizeof (*mp)); clib_memset (mp, 0, sizeof (*mp)); mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_SW_INTERFACE_SET_FLAGS); mp->client_index = api_client_index; mp->context = vpp_client_context; mp->sw_if_index = clib_host_to_net_u32 (ifindex); //mp->flags = IF_STATUS_API_FLAG_ADMIN_UP; mp->flags = IF_STATUS_API_FLAG_LINK_UP & IF_STATUS_API_FLAG_ADMIN_UP; vl_msg_api_send_shmem (api_vl_input_queue, (u8 *) & mp); reply handler says retval is success but i don't see interface state is up through vppctl. vppctl command shows IP is plumbed fine. Can anyone suggest what's the issue? Also, In this version, vl_api_sw_interface_set_flags_t flag parameter is a enum with IF_STATUS_API_FLAG_ADMIN_UP , IF_STATUS_API_FLAG_LINK_UP. So I am not sure how to make the interface state down. Thanks in advance. Regards, Subrata
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