[  540.495192] netdevsim netdevsim494 eni494np1: renamed from eth0
[  540.596024] netdevsim netdevsim748 eni748np1: renamed from eth1
[  540.917906] Could not find device with ifindex 2000 in netnsfd 11
[  540.918024] Could not find netns with fd: 2000
[  540.918086] Cannot link a netdevsim to itself
[  540.918163] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).