Observer Analyzer : Observer Analyzer : Network Trending : Understanding the Network Trending tool
Understanding the Network Trending tool
The Network Trending tool allows you to collect, store, and analyze network traffic statistics over long periods of time.
Network trending provides a broader view of your network and gives you trending information about network applications. This information may be useful for solving a specific problem or can be used for long-term planning. For example, you can collect statistics about the applications on your network for weeks, months, or years and be able to analyze changes over time.
Observer feature set
Real-Time Statistics
Packet Captures
Network Trending1
NetFlow/sFlow2
Viewing current network activity
++
+
Viewing long-term network activity3
+
++
++
Viewing network errors (CRC, alignment, etc.)
++
++
+
+
Capturing packets for analysis
++
Analyzing servers and applications
+
+
++
+
Analyzing routers and devices
++
+
+
++
Legend: – not recommended, + suitable, ++ recommended

1 Observer’s Network Trending tool without the aid of a GigaStor hardware appliance.

2 NetFlow and sFlow probe instances behave differently than most other types.

3 Long-term is considered any duration lasting one hour or longer.

Within Network Trending there are two similar tools that server very different purposes: Application Performance Analysis (APA) and Application Transaction Analysis (ATA). APA tracks all traffic passing through your server or application while ATA is only looking at a specific application (such at HTTP or SMTP). APA is used for statistics about Layer 4 of the OSI Model and ATA is for Layers 5-7.