[  521.637494] netdevsim netdevsim444 eni444np1: renamed from eth0
[  521.733963] netdevsim netdevsim538 eni538np1: renamed from eth1
[  521.959651] Could not find device with ifindex 2000 in netnsfd 11
[  521.959844] Could not find netns with fd: 2000
[  521.959950] Cannot link a netdevsim to itself
[  521.960074] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).