[  522.382654] netdevsim netdevsim744 eni744np1: renamed from eth1
[  522.480080] netdevsim netdevsim433 eni433np1: renamed from eth0
[  522.726609] Could not find device with ifindex 2000 in netnsfd 11
[  522.726769] Could not find netns with fd: 2000
[  522.726856] Cannot link a netdevsim to itself
[  522.726958] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).