[  486.304415] netdevsim netdevsim353 eni353np1: renamed from eth0
[  486.405986] netdevsim netdevsim683 eni683np1: renamed from eth1
[  486.726162] Could not find device with ifindex 2000 in netnsfd 11
[  486.726292] Could not find netns with fd: 2000
[  486.726364] Cannot link a netdevsim to itself
[  486.726458] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).