[  455.204276] netdevsim netdevsim273 eni273np1: renamed from eth0
[  455.208711] netdevsim netdevsim664 eni664np1: renamed from eth1
[  455.297727] Could not find device with ifindex 2000 in netnsfd 11
[  455.297889] Could not find netns with fd: 2000
[  455.297996] Cannot link a netdevsim to itself
[  455.298126] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).