Settings: Difference between revisions

The Global settings section contains parameters for adjusting the behavior of the system.

The settings are split among multiple tabs, described as follows.

To enable a time service, switch to the proper type in the dropdown box.

The time service field will show whether the selected service is running or not.

For NTP time retrieval you can specify and edit dedicated NTP servers. If you do not specify a NTP server, a set of predefined NTP servers will be taken automatically.

For PTP time retrieval, the PTP grandmaster clock identity is shown. This is usually an EUI-64 address. The first and last set of octets of the identity represent the (EUI-48) MAC address of the grandmaster.

The GPS time retrieval option is available if a GPS capable PTP grandmaster card is installed in the Multimeter.  

If no time synchronization mechanism is selected the date and time of the device can be configured manually by entering a properly formatted date and time description.

Below the time synchronization settings the time zone used by the device can be configured. The drop-down list provides a list of cities grouped by world regions to select the appropriate time zone from.

To make changes take effect, click on the Save settings button on the bottom of the page. To reload the stored settings, click on Reload settings.

The database mode is a special analysis mode for high-performance Network Multimeters with multiple processors to increase the performance on such systems. It is normally enabled automatically but depending on the actual network traffic and system usage, some parameter tweak might be necessary to improve overall system performance.  

You should only change these parameters in discussion with the Allegro Packets support.

These settings are only visible if your Network Multimeter is capable of running this mode.

* Processing performance mode: This setting allows for fine tuning processing performance. By using ‘Analysing’, as much processing ressources on all CPUs as possible are used for data analysis. By using ‘Capturing’, the focus will be on high data throughput and low latency for capturing purposes by using only the CPU where the preferred newtork controller is attached to. This has an impact on data analysis performance. ‘Analysing’ is used by default.

You should only change this parameter in discussion with the Allegro Packets support.

The throughput measurement module can measure interface throughput with a configurable resolution. The module can report its measurements via IPFIX or generate incidents as soon as a configured threshold exceeds.

It can be configured as follows:

The device comes with a pre-installed generic SSL certificate but an own certificate can be installed:

The “Install SSL certificate” button will open a dialog that will allow to upload a X.509 certificate file and a RSA key file. Upon successful upload this certificate will be used to serve the user interface.  

The “Reset to default SSL certificate” button will remove any user-provided SSL certificate and the user interface will be served using the default SSL certificate.

It is currently not possible to issue a signing request procedure. To use a certificate which needs to be signed by a company CA, the user has to create that certificate on a separate machine, create the signing request, and deploy the final certificate to the device using the option above.

The filter page allows setting a processing filter for live traffic. The traffic may be filtered before it is processed.

Filters can be applied for

* IP addresses (with possible subnet mask)

Paste the line into the file and save/close the file.

There are two options to access the multimeter:

If enabled, it is possible to access the Allegro Network Multimeter using SNMPv1. The community used is "public".

The following attributes are supported:

The user management page allows managing users which can use the Allegro Network Multimeter.

It is possible to:

* Create new users

* Edit users

* Disable users

* Delete users.