Netflow Vlan Interface

[hs08]

Hello,

I config NetFlow and applied on VLAN interface, on my NTA collector (using SolarWinds) why i only get traffic for download and not for upload? But if the NetFlow applied on physical interface, I got both conversation (download and upload).

This is normal behavior if we enable NetFlow on VLAN interface or something else?

[balaji.bandi]

what device mode and IOS code running ?

can you share the configuration bit

as if you sending both, as i remember some of the setting on NTA have option to select both directly traffic to view (if you send both ingress and egress)

cat 9K switch example :

https://www.balajibandi.com/?p=1383

[hs08]

Hello,

The devices is ISR4321 and running OS version 03.16.04b.S and here my config.

With below config i'm able to see the upload and download conversation for interface g0/0/0 but not for interface vlan 905

!
flow record NTA-Rec
match ipv4 tos
match ipv4 protocol
match ipv4 source address
match ipv4 destination address
match transport source-port
match transport destination-port
match interface input
collect interface output
collect counter bytes
collect counter packets
collect application name
!
!
flow exporter NTA-Exp
destination 10.103.248.55
source Loopback0
transport udp 2055
template data timeout 60
option application-table timeout 60
option application-attributes timeout 300
!
!
flow monitor NTA-Mon
description NetFlow nbar
exporter NTA-Exp
cache timeout inactive 30
cache timeout active 60
record NTA-Rec

interface GigabitEthernet0/0/0
ip address 10.103.242.6 255.255.255.252
ip flow monitor NTA-Mon input
ip flow monitor NTA-Mon output
!
interface Vlan905
ip address 10.103.243.13 255.255.255.252
ip flow monitor NTA-Mon input
ip flow monitor NTA-Mon output