[  523.312678] netdevsim netdevsim444 eni444np1: renamed from eth0
[  523.410390] netdevsim netdevsim647 eni647np1: renamed from eth1
[  523.653529] Could not find device with ifindex 2000 in netnsfd 11
[  523.653732] Could not find netns with fd: 2000
[  523.653821] Cannot link a netdevsim to itself
[  523.653924] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).