NetFlow/IPFIX interface: Difference between revisions

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Instead of the ingress/egress network interface, it is possible to
Instead of the ingress/egress network interface, it is possible to
report the *Virtual Link Group* of the flow by enabling the
report the *Virtual Link Group* of the flow by enabling the
corresponding option in the :ref:`ipfix_settings`.
corresponding option in the IPFIX settings`.
 
 


<br>
<br>
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<br>
<br>


The *Allegro Network Multimeter* is able to measure the throughput of
The Allegro Network Multimeter is able to measure the throughput of
interfaces on a millisecond basis to identify micro bursts in network
interfaces on a millisecond basis to identify micro bursts in network
connections. If the Allegro-specific interface statistics is enabled
connections. If the Allegro-specific interface statistics is enabled
in the :ref:`ipfix_settings`, regular messages are sent containing the
in the :ref:`ipfix_settings`, regular messages are sent containing the
number of packets and bytes within a configurable time interval. The
number of packets and bytes within a configurable time interval. The
*Allegro Network Multimeter* can measure time intervals as small as
Allegro Network Multimeter can measure time intervals as small as
one millisecond, the exact value can be chosen in the
one millisecond, the exact value can be chosen in the
:ref:`interface_throughput_settings` configuration section.
Interface and MAC throughput configuration section.


The message format is described as follows.
The message format is described as follows.
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| observationTimeMilliseconds = ...
| observationTimeMilliseconds = ...


#message type 5 is the "interface throughput update" message.
*message type 5 is the "interface throughput update" message.
#the ingress interface describes the corresponding network interface on
*the ingress interface describes the corresponding network interface on
   which the packets have been receveived. The value corresponds to the
   which the packets have been receveived. The value corresponds to the
   interface ID in the interface stats web page.
   interface ID in the interface stats web page.
#the packet delta count describes the number of packets within the specificied
*the packet delta count describes the number of packets within the specificied
   interval.
   interval.
#the octet delta count describes the number of bytes of layer 2 within the
*the octet delta count describes the number of bytes of layer 2 within the
   specificied interval.
   specificied interval.
#the update interval describes the duration of the reported interval in
*the update interval describes the duration of the reported interval in
   milliseconds.
   milliseconds.
#the ovservation timestamp describes the UTC timestamp of the reported interval
*the ovservation timestamp describes the UTC timestamp of the reported interval
   in milliseconds.
   in milliseconds.


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