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ImprovementCoreFlow
2 years ago

Flow Ingest: Support for VLAN Fields in NetFlow/IPFIX

Kentik now supports collection of the NetFlow and IPFIX fields for source/destination VLAN, which we previously not collected from the received flows. 


The related VLAN fields are shown in tables below:

NetFlow v9 VLAN fields

Field TypeValueLength (bytes)Description
SRC_VLAN582Virtual LAN identifier associated with ingress interface
DST_VLAN592Virtual LAN identifier associated with egress interface

Resource: https://www.cisco.com/en/US/technologies/tk648/tk362/technologies_white_paper09186a00800a3db9.html

IPFIX VLAN fields

ElementIDNameAbstract Data TypeDescriptionReference
58vlanIdunsigned16Virtual LAN identifier associated with ingress interface. [RFC5102]
59postVlanIdunsigned16Virtual LAN identifier associated with egress interface. [RFC5102]

Resource: https://www.iana.org/assignments/ipfix/ipfix.xhtml

These two fields are collected from NetFlow/IPFIX protocols and stored in the Kentik’s Source VLAN and Destination VLAN dimensions.

The support is available in kproxy starting from version v7.36.0. The example of the Data Explorer query is shown below:


Avatar of authorDuĊĦan Pajin