[  526.489614] netdevsim netdevsim538 eni538np1: renamed from eth1
[  526.586715] netdevsim netdevsim458 eni458np1: renamed from eth0
[  526.865070] Could not find device with ifindex 2000 in netnsfd 11
[  526.865340] Could not find netns with fd: 2000
[  526.865446] Cannot link a netdevsim to itself
[  526.865573] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).