How is NMSP protocol between Controller and MSE more beneficial than the SNMP between the Controller and MSE?
A. Earlier Software versions prior to 4.1 release of Location server used to fetch the location RSSI data from controllers with the use of SNMP. In this approach location server periodically polls the controllers for RSSI data and performs the calculations on retrieved data. Few issues in this approach are: • In this approach, to choose the poll interval is very challenging as larger poll interval drastically effects latency and lower polling interval results severe scaling issues as huge amount the redundant data are fetched and lower polling interval is resource intensive on both location server and MSE. It was challenging even to suggest an appropriate polling interval based on deployment and load. • Default reasonable interval chosen was five minute, which means latency was greater than 5 minutes. • Another issue related to this polling is if multiple controllers detect the same element, then there is absolutely no way to determine location server received all the data from all the
