[  483.050812] netdevsim netdevsim490 eni490np1: renamed from eth0
[  483.051470] netdevsim netdevsim549 eni549np1: renamed from eth1
[  483.131959] Could not find device with ifindex 2000 in netnsfd 11
[  483.132086] Could not find netns with fd: 2000
[  483.132194] Cannot link a netdevsim to itself
[  483.132306] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).