Cacti is a complete frontend to RRDTool, it stores all of the necessary information to create graphs and populate them with data in a MySQL database. The frontend is completely PHP driven. Along with being able to maintain Graphs, Data Sources, and Round Robin Archives in a database, cacti handles the data gathering. There is also SNMP support for those used to creating traffic graphs with MRTG.
http://forums.cacti.net/viewtopic.php?t=25349
cacti, widely used, very effective and free. The link is to the Mikrotik templates.
Support for :
Graph Support For:
System
HDD
CPU
Memory
Uptime
General
Active PPP Connections
Number of Routes
Number of Active Wireless Connections (Linux Only)
Number of Current ARP Entries (Linux Only)
Wireless Registration Tables (per Wireless Client)
Signal Strength
Data Rates
Packets
Traffic (bits and Bytes)
Wireless Client
Signal Strength
Data Rates
Frequency 802.11b/g
Frequency 802.11a
Queues
Simple Packets
Simple Traffic (bits and Bytes)
Tree Packets
Tree Traffic (bits and Bytes)