[  488.333430] netdevsim netdevsim515 eni515np1: renamed from eth1
[  488.430544] netdevsim netdevsim293 eni293np1: renamed from eth0
[  488.652091] Could not find device with ifindex 2000 in netnsfd 11
[  488.652350] Could not find netns with fd: 2000
[  488.652465] Cannot link a netdevsim to itself
[  488.652602] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).