[  484.515761] netdevsim netdevsim738 eni738np1: renamed from eth1
[  484.616357] netdevsim netdevsim508 eni508np1: renamed from eth0
[  484.992466] Could not find device with ifindex 2000 in netnsfd 11
[  484.992596] Could not find netns with fd: 2000
[  484.992658] Cannot link a netdevsim to itself
[  484.992744] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).