[ 1232.436230][T12781] netdevsim netdevsim280 eni280np1: renamed from eth0
[ 1232.560137][T12778] netdevsim netdevsim543 eni543np1: renamed from eth1
[ 1235.090540][T12773] Could not find device with ifindex 2000 in netnsfd 11
[ 1235.091748][T12773] Could not find netns with fd: 2000
[ 1235.092626][T12773] Cannot link a netdevsim to itself
[ 1235.093671][T12773] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).