[  493.369362] netdevsim netdevsim740 eni740np1: renamed from eth1
[  493.463805] netdevsim netdevsim268 eni268np1: renamed from eth0
[  493.698668] Could not find device with ifindex 2000 in netnsfd 11
[  493.699092] Could not find netns with fd: 2000
[  493.699238] Cannot link a netdevsim to itself
[  493.699381] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).