[  820.383121][T14636] netdevsim netdevsim426 eni426np1: renamed from eth0
[  820.421296][T14639] netdevsim netdevsim532 eni532np1: renamed from eth1
[  821.119653][T14624] Could not find device with ifindex 2000 in netnsfd 11
[  821.120300][T14624] Could not find netns with fd: 2000
[  821.120800][T14624] Cannot link a netdevsim to itself
[  821.121336][T14624] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).