[  524.699451] netdevsim netdevsim508 eni508np1: renamed from eth0
[  524.794933] netdevsim netdevsim518 eni518np1: renamed from eth1
[  525.096037] Could not find device with ifindex 2000 in netnsfd 11
[  525.096224] Could not find netns with fd: 2000
[  525.096320] Cannot link a netdevsim to itself
[  525.096443] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).