code: private void setOriginatingBus(String busName)
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(this, tc, "setOriginatingBus", busName);
          _busName = busName;
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(this, tc, "setOriginatingBus");
      }
docs: Sets the previous hop Bus name
  
  @param busName