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Netflow on Cisco 3850

Posted: Thu Mar 30, 2017 8:57 am
by pclements
I am using Cisco 3850 switches (IOS-XE CAT3K_CCA-UNIVERSALK9-M 03.06.04.E) where all interfaces are configured as switchports. How can I get netflow info from each interface? Where I am running into problems is when I try to configure the Source in this Cisco recommended config:
SUMMARY STEPS

1. configure terminal

2. flow exporter name

3. description string

4. destination {ipv4-address|ipv6-address}

5. dscp value

6. source { source type }

7. transport udp number

8. ttl seconds

9. export-protocol {netflow-v9 | ipfix}

10. end

11. show flow exporter [name record-name]

12. copy running-config startup-config

When I enter an Source interface that is configured as Switchport I get an error message "Cannot use a switchport as source". Is there another way?

Re: Netflow on Cisco 3850

Posted: Thu Mar 30, 2017 1:43 pm
by tgriep
I found this link on Cisco Support site but they suggest using a VLAN for your source. Can you use a VLAN interface on your device?
https://supportforums.cisco.com/discuss ... ace-source

Re: Netflow on Cisco 3850

Posted: Thu Mar 30, 2017 3:01 pm
by pclements
Thank you, that is what I needed.