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Configuring netflows through command line for Cisco L3 switches

Owned by Customer Success & Engineering
Last updated: Jan 28, 2023
1 min read

Overview

NetFlow uses flows to provide accounting, network monitoring, and planning statistics. A flow
is a unidirectional stream of packets that arrives on a source interface (or VLAN) and has the same values for
the keys. A key is an identified value for a field within the packet. You create a flow using a flow record to
define the unique keys for your flow

Netflow Version: V9

Steps

Open the CLI console and excute the below command.

!
flow exporter EXPORTER-1
destination CCE IP
transport udp 9995
exit
flow record rm_1
match ipv4 protocol
match ipv4 source address
match ipv4 destination address
match transport source-port
match transport destination-port
match flow direction
collect routing source as
collect interface input
collect interface output
collect counter bytes
collect counter packets
collect timestamp sys-uptime first
collect timestamp sys-uptime last
!
flow monitor mm_1
record rm_1
exporter EXPORTER-1
!
interface FastEthernet0/0
ip address 172.16.2.2 255.255.255.0
ip flow monitor mm_1 input
!
end


Verification

Verification through UI

STEP1

Login to UI >> SYSTEM>> LOGS AND FLOWS COLLECTION STATUS .

STEP 2

 >> LOGS AND FLOWS COLLECTION STATUS .

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