Netflow on 6500

[colinkiely1]

Hi all

I have noticed a large volume of traffic on our network over the past few weeks, with traffic passing over our ISP managed network. We dont have a router between our LAN and the ISP router, the connection is setup as a switch port. With this in mind, is it possible for me to gather ip top talkers on this switchport, or must it be a routed port? Thanks in advance

[jakewilson]

Hello,

Have you tried these MLS commands?

Jake

[colinkiely1]

Hi Jake

Thanks for the link. But the issue is that the command "ip route-cache flow" cannot be entered on a switchport, it must be a routed port. Was wondering if there was another option?

[glen.grant]

  Dpending on how new your IOS is top N reports might help.  Take a look and see if it's anything you can use.

http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SX/configuration/guide/topn.html

[mikek]

This can depend on what software you are running . The command set is different between Native IOS and "hybrid" IOS/CatOS Systems too.

Functionality also differs between Supervisors.

This should help you determine the commands needed to turn netflow on.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_example09186a0080721701.shtml

We could probably help a little more if we knew what hardware and software versions your 6500 is equipped with.

Hope this is helpful!

Mike