Integration Broker--- HR-system with HR-system

I have a requirement to integrate 2 Peoplesoft HR system using an integration broker. As the Default Local Nodes of both the system is PSFT_HR, when i give them in the peoplesoft Node configuration page , i am getting the error that "Duplicate node names not allowed ". I also tried renaming one of the node but getting the error that PSFT_HR cannot be renamed. Please help.