[  540.590732] netdevsim netdevsim413 eni413np1: renamed from eth0
[  540.692279] netdevsim netdevsim543 eni543np1: renamed from eth1
[  541.062130] Could not find device with ifindex 2000 in netnsfd 11
[  541.062283] Could not find netns with fd: 2000
[  541.062365] Cannot link a netdevsim to itself
[  541.062450] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).