[  519.722173] netdevsim netdevsim453 eni453np1: renamed from eth0
[  519.819795] netdevsim netdevsim749 eni749np1: renamed from eth1
[  520.050643] Could not find device with ifindex 2000 in netnsfd 11
[  520.050850] Could not find netns with fd: 2000
[  520.050963] Cannot link a netdevsim to itself
[  520.051075] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).