[  491.867004] netdevsim netdevsim753 eni753np1: renamed from eth1
[  491.963177] netdevsim netdevsim303 eni303np1: renamed from eth0
[  492.195542] Could not find device with ifindex 2000 in netnsfd 11
[  492.195853] Could not find netns with fd: 2000
[  492.195976] Cannot link a netdevsim to itself
[  492.196089] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).