[  484.640075] netdevsim netdevsim504 eni504np1: renamed from eth0
[  484.741020] netdevsim netdevsim748 eni748np1: renamed from eth1
[  485.169148] Could not find device with ifindex 2000 in netnsfd 11
[  485.169331] Could not find netns with fd: 2000
[  485.169421] Cannot link a netdevsim to itself
[  485.169526] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).