code: boolean wasProxyRequestSent()
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
      {
        SibTr.entry(tc, "wasProxyRequestSent");
        SibTr.exit(tc, "wasProxyRequestSent", new Boolean(iRequestSent));
      }
      return iRequestSent;
    }
docs: If a request message was sent to this neighbour for the
  proxy subscriptions
  
  @return true if a request was sent.