[ 1018.878090][T12579] netdevsim netdevsim300 eni300np1: renamed from eth0
[ 1018.887772][T12578] netdevsim netdevsim642 eni642np1: renamed from eth1
[ 1020.767114][T12572] Could not find device with ifindex 2000 in netnsfd 11
[ 1020.768200][T12572] Could not find netns with fd: 2000
[ 1020.768992][T12572] Cannot link a netdevsim to itself
[ 1020.769870][T12572] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).