[  524.120375] netdevsim netdevsim308 eni308np1: renamed from eth0
[  524.217234] netdevsim netdevsim749 eni749np1: renamed from eth1
[  524.477391] Could not find device with ifindex 2000 in netnsfd 11
[  524.477613] Could not find netns with fd: 2000
[  524.477724] Cannot link a netdevsim to itself
[  524.477854] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).