[  474.666954] netdevsim netdevsim270 eni270np1: renamed from eth0
[  474.668066] netdevsim netdevsim737 eni737np1: renamed from eth0
[  474.753364] Could not find device with ifindex 2000 in netnsfd 11
[  474.753493] Could not find netns with fd: 2000
[  474.753599] Cannot link a netdevsim to itself
[  474.753712] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).