[  703.376919] netdevsim netdevsim517 eni517np1: renamed from eth1
[  703.474600] netdevsim netdevsim493 eni493np1: renamed from eth0
[  703.708920] Could not find device with ifindex 2000 in netnsfd 11
[  703.709101] Could not find netns with fd: 2000
[  703.709188] Cannot link a netdevsim to itself
[  703.709290] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).