[  812.478922][T14761] netdevsim netdevsim403 eni403np1: renamed from eth0
[  812.498490][T14763] netdevsim netdevsim608 eni608np1: renamed from eth1
[  813.148234][T14749] Could not find device with ifindex 2000 in netnsfd 11
[  813.149131][T14749] Could not find netns with fd: 2000
[  813.149611][T14749] Cannot link a netdevsim to itself
[  813.150160][T14749] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).