[ 1248.070725][T12782] netdevsim netdevsim749 eni749np1: renamed from eth1
[ 1248.082909][T12786] netdevsim netdevsim400 eni400np1: renamed from eth0
[ 1250.887380][T12774] Could not find device with ifindex 2000 in netnsfd 11
[ 1250.889361][T12774] Could not find netns with fd: 2000
[ 1250.891055][T12774] Cannot link a netdevsim to itself
[ 1250.892912][T12774] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).