Netflows en Nexus 9K

Vamos a preparar la de la semana que viene … unos nexus 9000 (C9504) haciendo de cores … y ahora queremos configurar netflows que vamos a enviar hacia PRTG.

Lo primero … la guia.

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus9000/sw/7-x/system_management/configuration/guide/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_Guide_7x/b_Cisco_Nexus_9000_Series_NX-OS_System_Management_Configuration_Guide_7x_chapter_011100.html

Comprobar que la «Feature» esta activada (show feature)

netflow 1 enabled

Despues … crear un «Flow Record»

conf t
flow exporter Netflow-Exporter-1
description Production-Netflow-Exporter
destination xx.xx.xx.xx
source Vlanxx
version 9

flow record Netflow-Record-1
description Custom-Flow-Record
match ipv4 source address
match ipv4 destination address
match transport destination-port
collect counter bytes
collect counter packets

flow monitor Netflow-Monitor-1
description Applied Inbound-VLANxx
record Netflow-Record-1
exporter Netflow-Exporter-1

Con eso deberia funcionar.