[  522.198393] netdevsim netdevsim757 eni757np1: renamed from eth1
[  522.296729] netdevsim netdevsim458 eni458np1: renamed from eth0
[  522.549097] Could not find device with ifindex 2000 in netnsfd 11
[  522.549281] Could not find netns with fd: 2000
[  522.549375] Cannot link a netdevsim to itself
[  522.549493] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).