NST Network Interface Bandwidth Monitor: Difference between revisions
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[[File:Thunderbolt.png|frame|left|'''[[Feature Release Symbol | <center>NST 2.15.0<br /> SVN: 2581</center>]]''']] | [[File:Thunderbolt.png|frame|left|'''[[Feature Release Symbol | <center>NST 2.15.0<br /> SVN: 2581</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). | ||
The example below shows that a '''Threshold Pause''' session was configured on the "'''p32p1 Bandwidth Monitoring'''" graph for an Armed Rx bandwidth data rate of: "'''22.1 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'''. The traffic generated for this example was from a '''YUM''' update. A '''[http://www.dual-comm.com/gigabit_port-mirroring-LAN_switch.htm Dualcomm DGCS-2005L TAP]''' was used and present to network interface: '''p32p1''' on the external side of a firewall. | The example below shows that a '''Threshold Pause''' session was configured on the "'''p32p1 Bandwidth Monitoring'''" graph for an Armed Rx bandwidth data rate of: "'''22.1 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'''. The traffic generated for this example was from a '''YUM''' update. A '''[http://www.dual-comm.com/gigabit_port-mirroring-LAN_switch.htm Dualcomm DGCS-2005L TAP]''' was used and present to network interface: '''p32p1''' on the external side of a firewall. | ||
Revision as of 07:43, 3 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.
SVN: 2502
Screencasts
The following screencast provides a brief introduction to using the Network Interface Bandwidth Monitor:
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
SVN: 2581
- 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 "p32p1 Bandwidth Monitoring" graph for an Armed Rx bandwidth data rate of: "22.1 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. The traffic generated for this example was from a YUM update. A Dualcomm DGCS-2005L TAP was used and present to network interface: p32p1 on the external side of a firewall.
Large Multi-Network Interface 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.
