[  487.746103] netdevsim netdevsim340 eni340np1: renamed from eth0
[  487.746612] netdevsim netdevsim534 eni534np1: renamed from eth1
[  487.845091] Could not find device with ifindex 2000 in netnsfd 11
[  487.845191] Could not find netns with fd: 2000
[  487.845260] Cannot link a netdevsim to itself
[  487.845314] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).