topic Netflow on Nexus 7010 in Switching

Netflow on Nexus 7010

bigserpent — Fri, 08 Mar 2019 16:55:38 GMT

I have a Nexus-7010 and have netflow configured on SVI / Routing Interface to collects the flow data for troubleshooting.

Recently, I want to have flow data from a trunk port interface.

Could you tell me, Is it possible to enable the netflow on a trunk port interface likes this ?

interface Ethernet2/6
ip flow monitor NF-Monitor-01 input sampler NF-Sampler-01
ip flow monitor NF-Monitor-01 output sampler NF-Sampler-01
switchport
switchport mode trunk
switchport trunk allowed vlan 100,215
no shutdown

Yes but your netflow needs to

Mark Malone — Mon, 16 Jan 2017 09:06:20 GMT

Yes but your netflow needs to be set for layer 2 fields or it wont collect anything

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fnetflow/configuration/15-mt/fnf-15-mt-book/fnf-l2-fields.html#d41985e186a1635

flow record LAYER-2-FIELDS-1
match ipv4 source address
match ipv4 destination address
match datalink dot1q vlan output
match datalink mac source address input
match datalink mac source address output
match datalink mac destination address input
match flow direction

Hi Mark,

bigserpent — Mon, 16 Jan 2017 09:22:08 GMT

Hi Mark,

Thanks for your help and I will schedule to test the new configuration 🙂