[  522.850818] netdevsim netdevsim517 eni517np1: renamed from eth1
[  522.947565] netdevsim netdevsim280 eni280np1: renamed from eth0
[  523.188338] Could not find device with ifindex 2000 in netnsfd 11
[  523.188545] Could not find netns with fd: 2000
[  523.188648] Cannot link a netdevsim to itself
[  523.188761] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).