def getMaximumInstances(self):
        response = self.get(self.sessionIdUrl+'/ixLoad/preferences')
        maxInstances = response.json()['maximumInstances']
        self.logInfo('\ngetMaximumInstances:%s' % maxInstances)
        return int(maxInstances)

uter/{id}

           data: <dict>:  Get attributes from the IxNetwork API browser.
        """
        response = self.ixnObj.get(self.ixnObj.httpHeader + isisL3RouterObj)

        if 'enableBIER' in data:
            self.ixnObj.patch(self.ixnObj.httpHeader + isisL3RouterObj, data={'enableBIER': data['enableBIER']})

        # Note: Feel free to add additional parameters.
        for attribute in ['active', 'bierNFlag', 'bierRFlag']:
            if attribute in data:
                multivalue = response.json()[attribute]
                self.ixnObj.logInfo('Configuring ISIS BIER Subdomain multivalue attribute: %s' % attribute)
                self.ixnObj.patch(self.ixnObj.httpHeader+multivalue+"/singleValue", data={'value': data[attribute]})