NST Network Interface Bandwidth Monitor: Difference between revisions

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== Threshold Pause Feature ==
== Threshold Pause Feature ==
[[File:Thunderbolt.png|frame|left|'''[[Feature Release Symbol | <center>NST 2.15.0<br /> SVN: 2596</center>]]''']]
[[File:Thunderbolt.png|frame|left|'''[[Feature Release Symbol | <center>NST 2.15.0<br /> SVN: 2625</center>]]''']]
* A Threshold Pause feature that allows "'''Pausing'''" of one or more Bandwidth Monitoring graphs when a configured Threshold Armed Rate value is Reached or Exceeded (i.e., Triggered).
* A Threshold Pause feature that allows "'''Pausing'''" of one or more Bandwidth Monitoring graphs when a configured Threshold Armed Rate value is Reached or Exceeded (i.e., Triggered).



Revision as of 17:47, 27 September 2011

Overview

The NST Network Interface Bandwidth Monitor is an interactive dynamic SVG/AJAX enabled application integrated into the NST WUI for monitoring Network Bandwidth usage on each configured network interface in pseudo real-time. The image below is an example display of the bandwidth monitoring application for network interface: "eth0". Also shown is an included Ruler Measurement tool overlay to perform time and bandwidth rate analysis.

NST 2.15.0
SVN: 2502
Network Interface Bandwidth Monitor - Single Interface: eth0

Screencasts

The following screencast provides a brief introduction to using the Network Interface Bandwidth Monitor:

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Feature Summary

The following are key features of the NST Network Interface Bandwidth Monitor tool:

  • Graphically monitor Network Bandwidth rates on each configured network interface within the NST WUI.
  • User selectable network interface network interface to monitor.
  • Interactive display using dynamic SVG (Scalable Vector Graphics).
  • User selectable AJAX query updates providing a pseudo real-time Bandwidth Rate presentation.
  • Automatic and manual bandwidth rate scale adjustments.
  • Pause individual graphs for analysis or synchronization both Received/Transmit graphs when using a TAP for monitoring.
  • Adjustable graph dimensions for long duration bandwidth monitoring.
  • Customize network interface graph titles.
  • Graph controls for visual appearance including fill and opacity setting.
  • Zoom controls for graph size enlargement and Full Screen viewing.
  • Crosshairs overlay for exploring time and bandwidth values.
  • A Ruler Measurement tool overlay for time and bandwidth rate analysis.

Threshold Pause Feature

NST 2.15.0
SVN: 2625
  • A Threshold Pause feature that allows "Pausing" of one or more Bandwidth Monitoring graphs when a configured Threshold Armed Rate value is Reached or Exceeded (i.e., Triggered).

The example below shows that a Threshold Pause session was configured on the "p2p2 Bandwidth Monitoring" graph with an Armed Rx bandwidth data rate of: "8.3 Mbps". This bandwidth rate must be maintained for the Armed duration of "2400 msecs" before a Threshold Trigger can occur. A Threshold Trigger event did occur on 2011-09-02 21:29:28.721 at an Rx data rate value of: "28.61 Mbps". A Post Trigger Delay of "5 seconds" was in effect. All bandwidth monitoring graphs were set to be Paused. A query rate of "200 msec" was also configured for bandwidth monitor graph updates.

The traffic generated for this example was from a YUM update. A Dualcomm DGCS-2005L TAP was used on the external side of a firewall and presented the network traffic to interface: "p2p2" .

Network Interface Bandwidth Monitor - A Threshold Pause was 'Triggered' on Interface: "p2p2" - Rx Bandwidth Rate: 8.3 Mbps
Network Interface Bandwidth Monitor - A Threshold Pause was 'Triggered' on Interface: "p2p2" - Rx Bandwidth Rate: 8.3 Mbps

Large Multi-Network Interface Adapter Server Configuration Example

This example shows the bandwidth monitoring application for selected network interfaces: "em1, em2, em8 and lo" on a NST system configured with eleven (11) network interfaces.

Network Interface Bandwidth Monitor - Selected Multiple Interfaces: em1, em2, em8 and lo