[  503.934060] netdevsim netdevsim541 eni541np1: renamed from eth1
[  504.033983] netdevsim netdevsim488 eni488np1: renamed from eth0
[  504.372132] Could not find device with ifindex 2000 in netnsfd 11
[  504.372280] Could not find netns with fd: 2000
[  504.372365] Cannot link a netdevsim to itself
[  504.372481] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).