[  483.753187] netdevsim netdevsim423 eni423np1: renamed from eth0
[  483.754071] netdevsim netdevsim764 eni764np1: renamed from eth1
[  483.836313] Could not find device with ifindex 2000 in netnsfd 11
[  483.836409] Could not find netns with fd: 2000
[  483.836454] Cannot link a netdevsim to itself
[  483.836509] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).