[  523.897855] netdevsim netdevsim697 eni697np1: renamed from eth1
[  523.995123] netdevsim netdevsim412 eni412np1: renamed from eth0
[  524.236148] Could not find device with ifindex 2000 in netnsfd 11
[  524.236333] Could not find netns with fd: 2000
[  524.236434] Cannot link a netdevsim to itself
[  524.236533] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).