[  770.644854][T14614] netdevsim netdevsim277 eni277np1: renamed from eth0
[  770.668243][T14615] netdevsim netdevsim580 eni580np1: renamed from eth1
[  771.255859][T14601] Could not find device with ifindex 2000 in netnsfd 11
[  771.256453][T14601] Could not find netns with fd: 2000
[  771.256926][T14601] Cannot link a netdevsim to itself
[  771.257448][T14601] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).