[  700.399928][T13055] netdevsim netdevsim312 eni312np1: renamed from eth0
[  700.421718][T13057] netdevsim netdevsim512 eni512np1: renamed from eth1
[  701.028820][T13043] Could not find device with ifindex 2000 in netnsfd 11
[  701.032834][T13043] Could not find netns with fd: 2000
[  701.033225][T13043] Cannot link a netdevsim to itself
[  701.033694][T13043] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).