[  512.242208] netdevsim netdevsim286 eni286np1: renamed from eth0
[  512.338987] netdevsim netdevsim609 eni609np1: renamed from eth1
[  512.565132] Could not find device with ifindex 2000 in netnsfd 11
[  512.565320] Could not find netns with fd: 2000
[  512.565397] Cannot link a netdevsim to itself
[  512.565490] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).