[  523.147987] netdevsim netdevsim713 eni713np1: renamed from eth1
[  523.245694] netdevsim netdevsim437 eni437np1: renamed from eth0
[  523.468336] Could not find device with ifindex 2000 in netnsfd 11
[  523.468599] Could not find netns with fd: 2000
[  523.468675] Cannot link a netdevsim to itself
[  523.468765] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).