[  838.998788][T15802] netdevsim netdevsim431 eni431np1: renamed from eth0
[  839.017363][T15804] netdevsim netdevsim527 eni527np1: renamed from eth1
[  839.599801][T15790] Could not find device with ifindex 2000 in netnsfd 11
[  839.600412][T15790] Could not find netns with fd: 2000
[  839.600889][T15790] Cannot link a netdevsim to itself
[  839.601393][T15790] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).