[  526.020425] netdevsim netdevsim344 eni344np1: renamed from eth0
[  526.117987] netdevsim netdevsim673 eni673np1: renamed from eth1
[  526.383059] Could not find device with ifindex 2000 in netnsfd 11
[  526.383250] Could not find netns with fd: 2000
[  526.383334] Cannot link a netdevsim to itself
[  526.383436] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).