[  483.683019] netdevsim netdevsim301 eni301np1: renamed from eth0
[  483.683566] netdevsim netdevsim749 eni749np1: renamed from eth1
[  483.778510] Could not find device with ifindex 2000 in netnsfd 11
[  483.778600] Could not find netns with fd: 2000
[  483.778644] Cannot link a netdevsim to itself
[  483.778698] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).