[  710.349590][T13058] netdevsim netdevsim257 eni257np1: renamed from eth0
[  710.364884][T13060] netdevsim netdevsim690 eni690np1: renamed from eth1
[  711.024661][T13046] Could not find device with ifindex 2000 in netnsfd 11
[  711.025507][T13046] Could not find netns with fd: 2000
[  711.025905][T13046] Cannot link a netdevsim to itself
[  711.026349][T13046] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).