Overview of Cacti Watcher Function - IMG

Overview

Cacti is a network monitoring/graphing application, which is replacing the MRTG (Multi Router Traffic Grapher) monitoring/graphing tool. Cacti is built around the RRDTool, which is an open source high performance data logging and graphing system. Cacti will be used to monitor information such as Network Traffic, CPU Utilization, Memory, and Temperature. Based on some preset thresholds, Cacti has the ability to send alerting Email once the thresholds have been exceeded. Cacti operates using user generated graphs. Below is a list of the components that comprise the Cacti monitoring system.

Note: Cacti is not supported on a GCEMS server with a 64 bit Red Hat 5 Operating system installed.

 

Related Topics:

Installing Cacti

Upgrade from MRTG to Cacti

 

Cacti Log Files and Graphs

The Graphs created by cacti will be available through the Cacti Web Page. Each graph can be viewed using the following units of time:

Traffic

The table below displays the different graphs that can be created and viewed.

Per IMG

 

Per Channel Grp

 

Per IP Channel Grp

 

Temperature

 

Memory

 

Local Hosts

Average Call Duration

 

Incoming Traffic

 

Incoming Traffic

 

Under VOIP Module

 

IMG Total Free Memory

 

CPU Utilization

IP Channel States

Incoming Traffic ASR

Incoming Traffic ASR

 

Right exhaust outlet

IMG 16 Byte Pool

Disk Usage

TDM Channel States

Outgoing Traffic

Outgoing Traffic

 

Under DSP Module

IMG 32 Byte Pool

Memory Statistics

Incoming Traffic

Outgoing Traffic ASR

Outgoing Traffic ASR

 

Left exhaust outlet

IMG 64 Byte Pool

Swap Usage

Incoming Traffic ASR

Average Call Duration

Average Call Duration

 

PPC 750GX Processor (CPU)

IMG 128 Byte Pool

Swap Statistics

Outgoing Traffic

TDM Channel Statistics

IP Channel Statistics

 

Backside of motherboard

IMG 256 Byte Pool

Memory Usage

Outgoing Traffic ASR

 

 

 

 

IMG 512 Byte Pool

Load Average

Total Traffic

 

 

 

 

IMG 1024 Byte Pool

Logged in Users

Total Traffic ASR

 

 

 

 

IMG 2048 Byte Pool

Number of Processes

 

ASR - Average Success Rate / Answer Seizure Ratio

 

Sample Graphs:

Below are a few of the graphs that are produced by the cacti application. They are displayed here as examples of what users can expect to see.

 

sc_cacti_graphs.png

 

 

sc_cacti_graphs_isdn.png

 

 

sc_cacti_graphs_fxs_tdm.png

 

Note: For each of the graphs, located beneath the actual graphing portion are specifications on Average Idle Channels, Average Disconnected Channels, Average Out of Service Channels, etc. Within these specs there are notations after the numbers (m and k). See graphs above. Those notations are explained below.

 

 

Example: If there were 965.34 m Out of Service Channels (as shown in the graph above), that would indicate less than one channel on average was Out of Service. (.96534 Average Out of Service Channels)