[  503.093210] netdevsim netdevsim264 eni264np1: renamed from eth0
[  503.094913] netdevsim netdevsim645 eni645np1: renamed from eth1
[  503.193270] Could not find device with ifindex 2000 in netnsfd 11
[  503.193374] Could not find netns with fd: 2000
[  503.193429] Cannot link a netdevsim to itself
[  503.193495] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).