[  485.507496] netdevsim netdevsim406 eni406np1: renamed from eth0
[  485.608902] netdevsim netdevsim656 eni656np1: renamed from eth1
[  485.956552] Could not find device with ifindex 2000 in netnsfd 11
[  485.956681] Could not find netns with fd: 2000
[  485.956745] Cannot link a netdevsim to itself
[  485.956851] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).