[  493.769273] netdevsim netdevsim426 eni426np1: renamed from eth0
[  493.865981] netdevsim netdevsim744 eni744np1: renamed from eth1
[  494.150817] Could not find device with ifindex 2000 in netnsfd 11
[  494.151132] Could not find netns with fd: 2000
[  494.151241] Cannot link a netdevsim to itself
[  494.151373] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).