[ 1244.395182][T12781] netdevsim netdevsim737 eni737np1: renamed from eth1
[ 1244.511767][T12782] netdevsim netdevsim455 eni455np1: renamed from eth0
[ 1247.001362][T12774] Could not find device with ifindex 2000 in netnsfd 11
[ 1247.002681][T12774] Could not find netns with fd: 2000
[ 1247.003537][T12774] Cannot link a netdevsim to itself
[ 1247.004581][T12774] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).