[  520.368889] netdevsim netdevsim580 eni580np1: renamed from eth1
[  520.464634] netdevsim netdevsim334 eni334np1: renamed from eth0
[  520.697180] Could not find device with ifindex 2000 in netnsfd 11
[  520.697371] Could not find netns with fd: 2000
[  520.697459] Cannot link a netdevsim to itself
[  520.697563] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).