[  511.123883] netdevsim netdevsim635 eni635np1: renamed from eth1
[  511.221158] netdevsim netdevsim435 eni435np1: renamed from eth0
[  511.432176] Could not find device with ifindex 2000 in netnsfd 11
[  511.432343] Could not find netns with fd: 2000
[  511.432413] Cannot link a netdevsim to itself
[  511.432499] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).