[  455.635308] netdevsim netdevsim507 eni507np1: renamed from eth0
[  455.635929] netdevsim netdevsim625 eni625np1: renamed from eth1
[  455.732062] Could not find device with ifindex 2000 in netnsfd 11
[  455.732158] Could not find netns with fd: 2000
[  455.732202] Cannot link a netdevsim to itself
[  455.732253] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).