[  798.665174][T14839] netdevsim netdevsim409 eni409np1: renamed from eth0
[  798.679882][T14841] netdevsim netdevsim621 eni621np1: renamed from eth1
[  799.285782][T14827] Could not find device with ifindex 2000 in netnsfd 11
[  799.286407][T14827] Could not find netns with fd: 2000
[  799.286915][T14827] Cannot link a netdevsim to itself
[  799.287445][T14827] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).