[  775.829361][T14755] netdevsim netdevsim310 eni310np1: renamed from eth0
[  775.849398][T14757] netdevsim netdevsim553 eni553np1: renamed from eth1
[  776.416860][T14743] Could not find device with ifindex 2000 in netnsfd 11
[  776.417402][T14743] Could not find netns with fd: 2000
[  776.417787][T14743] Cannot link a netdevsim to itself
[  776.418247][T14743] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).