[  488.778177] netdevsim netdevsim397 eni397np1: renamed from eth0
[  488.878925] netdevsim netdevsim561 eni561np1: renamed from eth1
[  489.230883] Could not find device with ifindex 2000 in netnsfd 11
[  489.231025] Could not find netns with fd: 2000
[  489.231101] Cannot link a netdevsim to itself
[  489.231192] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).