[  522.945168] netdevsim netdevsim513 eni513np1: renamed from eth1
[  523.043113] netdevsim netdevsim334 eni334np1: renamed from eth0
[  523.311088] Could not find device with ifindex 2000 in netnsfd 11
[  523.311283] Could not find netns with fd: 2000
[  523.311377] Cannot link a netdevsim to itself
[  523.311489] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).