[ 1341.700629][T13032] netdevsim netdevsim621 eni621np1: renamed from eth1
[ 1341.799800][T13033] netdevsim netdevsim426 eni426np1: renamed from eth0
[ 1344.382577][T13021] Could not find device with ifindex 2000 in netnsfd 11
[ 1344.384396][T13021] Could not find netns with fd: 2000
[ 1344.385922][T13021] Cannot link a netdevsim to itself
[ 1344.387753][T13021] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).