[  521.122074] netdevsim netdevsim426 eni426np1: renamed from eth0
[  521.219716] netdevsim netdevsim547 eni547np1: renamed from eth1
[  521.453772] Could not find device with ifindex 2000 in netnsfd 11
[  521.453967] Could not find netns with fd: 2000
[  521.454062] Cannot link a netdevsim to itself
[  521.454158] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).