[  522.303180] netdevsim netdevsim394 eni394np1: renamed from eth0
[  522.400216] netdevsim netdevsim752 eni752np1: renamed from eth1
[  522.642894] Could not find device with ifindex 2000 in netnsfd 11
[  522.643148] Could not find netns with fd: 2000
[  522.643280] Cannot link a netdevsim to itself
[  522.643433] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).