Be really careful with NetFlow on the 6500 it can easily crush the Supervisor if you're not careful.
From: [email protected] [mailto:[email protected]] On Behalf Of Travis Formoso Sent: Monday, March 08, 2010 11:57 AM To: Volk,Gregory B; [email protected] Subject: RE: [Flow-tools] Setting up NetFlow on 6509 Greg, We are not running IOS-XR, however this is almost the same and I can set this up. With the loopback0 interface setup what are the commands I need to run, so that I am monitoring this device correctly with netflow? Would it be: ip flow-export source loopback0 ip flow-export version 5 ip flow-export destination 172.20.200.50 Now I configure netflow for switched traffic: mls nde sender version 5 mls flow ip interface-full mls nde interface On the interface (loopback0): (Not sure if this is needed for the loopback interface?) ip route-cache flow Thanks for the help. ________________________________ From: Volk,Gregory B [mailto:[email protected]] Sent: Monday, March 08, 2010 11:50 AM To: Travis Formoso; [email protected] Subject: RE: [Flow-tools] Setting up NetFlow on 6509 > >What should the loopback interface look like? > Here's what one of mine looks like, but it requires some config integration with OSPF, assuming you're running OSPF. router#sho run int lo0 Building configuration... Current configuration : 128 bytes ! interface Loopback0 description *** MANAGEMENT & OSPF ID *** ip address 10.130.25.1 255.255.255.255 ip pim sparse-mode end router# This doc from cisco... http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.0/interfaces/configuration/guide/hc3loop.html ...may help, but it's for IOS-XR. ________________________________ From: Travis Formoso [mailto:[email protected]] Sent: Monday, March 08, 2010 10:30 AM To: Volk,Gregory B; [email protected] Subject: RE: [Flow-tools] Setting up NetFlow on 6509 Hey Greg, On the 6509 there is currently no loopback interface so I will need to set this up. What should the loopback interface look like? Also once I set it to this loopback I will not need to export to the VLAN's as this would monitor all the ports? Thanks ________________________________ From: Volk,Gregory B [mailto:[email protected]] Sent: Monday, March 08, 2010 11:19 AM To: Travis Formoso; [email protected] Subject: RE: [Flow-tools] Setting up NetFlow on 6509 Have you tried setting the source to a non-vlan (physical or loopback) interface like: ip flow-export source Loopback0 I don't know if that will fix your issue, but I always source my netflow data from a loopback interface that is dedicated for management traffic. If you are not the intended recipient of this message (including attachments), or if you have received this message in error, immediately notify us and delete it and any attachments. If you no longer wish to receive e-mail from Edward Jones, please send this request to [email protected]. You must include the e-mail address that you wish not to receive e-mail communications. For important additional information related to this e-mail, visit www.edwardjones.com/US_email_disclosure<http://www.edwardjones.com/US_email_disclosure> ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Travis Formoso Sent: Monday, March 08, 2010 9:47 AM To: [email protected] Subject: [Flow-tools] Setting up NetFlow on 6509 Hello all, I am trying to setup a NetFlow product on our 6509. We have a number of different VLAN's across our network and I think I would want to monitor those VLAN's and that should capture the traffic on the 6509 (correct me if I am wrong.) The way the product is licensed is by source (a source is a router or switch.) When I try to setup netflow each VLAN comes in as a different source and I would like it if I can use the 6509 as just once source. Here are the commands I am using to set this up. in configuration mode: ip flow-export source vlan10 ip flow-export version 5 ip flow-export destination 172.20.200.50 Now I configure netflow for switched traffic: mls nde sender version 5 mls flow ip interface-full mls nde interface On the interface (vlan 10): ip route-cache flow After doing that I see that incoming traffic is being monitored by NetFlow, however as said that interface (VLAN) is coming in as a source, so if I configure another VLAN I now have 2 sources, but I would like to set this up so the 6509 is just one source, monitoring all the VLAN's. I wanted to know if these commands are correct, if I should be monitoring the VLAN's and if anyone knows how to set this up as explained above with the 6509 as one source. Thank you, Travis
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