[  487.583800] netdevsim netdevsim328 eni328np1: renamed from eth0
[  487.681041] netdevsim netdevsim749 eni749np1: renamed from eth1
[  487.906132] Could not find device with ifindex 2000 in netnsfd 11
[  487.906441] Could not find netns with fd: 2000
[  487.906555] Cannot link a netdevsim to itself
[  487.906688] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).