"SoftLayer_" prefix removed for readability.
None
curl -g -u $SL_USER:$SL_APIKEY -X GET \
'https://api.softlayer.com/rest/v3.1/SoftLayer_Network_Application_Delivery_Controller_LoadBalancer_Service_Group/{SoftLayer_Network_Application_Delivery_Controller_LoadBalancer_Service_GroupID}/getRoutingMethod'