[  482.694694] netdevsim netdevsim388 eni388np1: renamed from eth0
[  482.695293] netdevsim netdevsim721 eni721np1: renamed from eth1
[  482.779051] Could not find device with ifindex 2000 in netnsfd 11
[  482.779132] Could not find netns with fd: 2000
[  482.779177] Cannot link a netdevsim to itself
[  482.779224] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).