On Sun, Nov 14, 2010 at 12:07:40PM +1000, Mehmet Akcin wrote:
hey there
any recommendations on freeware flow analysis tool which can show the flow not only per prefix basis but also show asn and/or country/region as well? Juniper only.
feel free to contact on/off list.
Juniper's flow export is just like everyone else's (*), so any tool will do the same thing. Country/region analysis would depend on third party geolocation services, which have nothing to do with netflow. :) (*) Well, except M/T/MX only support NetFlow v5/v8 in the free software based sampling mode, you need an expensive services card and software license to do v9 for some reason. Oh and the sFlow on EX is actually pretty cripled when used for routing. It's missing support for a bunch of important extended message tpes, and doesn't fully populate all of the fields of the message types it does send. For example you won't get any data on ASNs, nexthops, dest ifindexes, or even netmasks of the src/dst route the flow matched, making it pretty darn useless for a lot of tasks. It's functional if you're just analyzing L2 networks at any rate. -- Richard A Steenbergen <ras@e-gerbil.net> http://www.e-gerbil.net/ras GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)