[  514.265346] netdevsim netdevsim664 eni664np1: renamed from eth1
[  514.362998] netdevsim netdevsim458 eni458np1: renamed from eth0
[  514.535284] Could not find device with ifindex 2000 in netnsfd 11
[  514.535417] Could not find netns with fd: 2000
[  514.535488] Cannot link a netdevsim to itself
[  514.535572] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).