[  485.898555] netdevsim netdevsim446 eni446np1: renamed from eth0
[  485.999683] netdevsim netdevsim536 eni536np1: renamed from eth1
[  486.350836] Could not find device with ifindex 2000 in netnsfd 11
[  486.351026] Could not find netns with fd: 2000
[  486.351127] Cannot link a netdevsim to itself
[  486.351246] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).