04-06-2012 12:04 PM
I am trying to setup Netflow to identify a problem I am having with a video conferencing system. Here are the commands that I have entered into the 6509 I am working on. I have checked this against another 6509 I have and these match. Not able to get netflow to show up on the solarwinds server. I have configured it to accept the netflow source coming from the 6509 I am working on.
ip flow-export version 9
ip flow-export destination 1.1.1.1 2055
ip flow-export sourc vlan 254
mls netflow
mls flow ip interface-full
ip flow-cache timeout active 1
mls ip multicast flow-stat-timer 9
mls nde sender version 5
Using the sh mls netflow ip, I can see netflow data on the 6509 but it doesnt seem to be sending anything to the solarwinds server. By when I do a sh mls nde, I dont see any packets exporting -
Netflow Data Export enabled
Exporting flows to 1.1.1.1 (2055)
Exporting flows from 2.2.2.2 (50586)
Version: 9
Layer2 flow creation is disabled
Layer2 flow export is disabled
Include Filter not configured
Exclude Filter not configured
Total Netflow Data Export Packets are:
0 packets, 0 no packets, 0 records
Any suggestions for what I am missing ?
Ron
04-06-2012 01:20 PM
What do "show ip flow export" and "show ip cache flow" return?
04-06-2012 01:57 PM
I got output from both of the commands (thanks for those) and I now see I have output. Looks like I didnt wait long enough for Solarwinds to acknowledge the output
This has led me to another problem - if I am interperting things correctly, I can only get Netflow off of a layer 3 interface (i.e. a vlan or interface that is routed. I can see Netflow on my vlan interfaces but not from an switchport interface that has a switchport access vlan x statement on it. Am I correct on that ?
Ron
04-06-2012 02:55 PM
Great to hear it's actually working. As far as the L2 flows, one could enable/export them selectively as described in the following doc:
ip flow ingress layer2-switched vlan
!--- Enables NetFlow for Layer 2-switched traffic on the PFC.
!--- It also enables the NDE for Layer 2-switched traffic on the PFC.
ip flow export layer2-switched vlan
!--- Enabling ip flow ingress as in the Enable NetFlow Section
!--- automatically enables ip flow export.
!--- If you disabled ip flow export earlier, you can enable it as mentioned.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide