[  524.027155] netdevsim netdevsim550 eni550np1: renamed from eth1
[  524.124738] netdevsim netdevsim373 eni373np1: renamed from eth0
[  524.343578] Could not find device with ifindex 2000 in netnsfd 11
[  524.343817] Could not find netns with fd: 2000
[  524.343932] Cannot link a netdevsim to itself
[  524.344064] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).