I am having problems with the network performance between SLES and AIX. I have tested the network performance fromAIX 1 Gbit/s to AIX 1 Gbit/sSLES 11 10 Gbit/s to SLES 11 10 Gbit/sAIX 1 Gbit/s to SLES 11 10 Gbit/s and reversethere are also other machines on the network, so we don't have the full bandwidth, but the network is definitely not flooded by the other machines.via:netcat scp niping (network performance measurement tool from SAP)between two AIX machines I am getting decent results of about 110 Mbit/sbetween the two Linux machines I am getting good results of about 2,2 Gbit/sbut between Linux and AIX, independent in which direction, I am getting only about 30 Mbit/s, consistently over all the 3 measurement tools. All tested adapters are in the same subnet!Routing is not the problem. When I am doing traceroute, the nodes are connecting directly to each other without taking a hop over a gateway. There are also no Ierrs/Oerrs according to netstat -i on any machine. Network stability test over ~20 minutes via ping is decent as well.So personally I would say I can exclude the possibility of a networking problem and can narrow it down to the speed negotiation or buffer size negotiation between AIX and Linux. For your info: All hosts are Logical Partitions (Virtual machines so to speak) on IBM PowerVM. Somebody got an idea what to do?
Poor network performance between AIX 7.1 on 1 Gbit/s and SLES 11 on 10 Gbit/s
networking;performance;aix;sles