[  476.548917] netdevsim netdevsim457 eni457np1: renamed from eth0
[  476.549970] netdevsim netdevsim522 eni522np1: renamed from eth1
[  476.637982] Could not find device with ifindex 2000 in netnsfd 11
[  476.638094] Could not find netns with fd: 2000
[  476.638146] Cannot link a netdevsim to itself
[  476.638207] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).