[  488.098079] netdevsim netdevsim477 eni477np1: renamed from eth0
[  488.198791] netdevsim netdevsim737 eni737np1: renamed from eth1
[  488.520038] Could not find device with ifindex 2000 in netnsfd 11
[  488.520183] Could not find netns with fd: 2000
[  488.520273] Cannot link a netdevsim to itself
[  488.520382] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).