[  788.607019][T14551] netdevsim netdevsim309 eni309np1: renamed from eth0
[  788.628498][T14552] netdevsim netdevsim529 eni529np1: renamed from eth1
[  789.259947][T14538] Could not find device with ifindex 2000 in netnsfd 11
[  789.260600][T14538] Could not find netns with fd: 2000
[  789.261095][T14538] Cannot link a netdevsim to itself
[  789.262303][T14538] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).