[  771.801765][T14784] netdevsim netdevsim458 eni458np1: renamed from eth0
[  771.820566][T14786] netdevsim netdevsim637 eni637np1: renamed from eth1
[  772.351139][T14772] Could not find device with ifindex 2000 in netnsfd 11
[  772.351981][T14772] Could not find netns with fd: 2000
[  772.352444][T14772] Cannot link a netdevsim to itself
[  772.352874][T14772] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).