Back to mySolvr Home >
Bookmark

netflow Pingsta Validated

Definition

Netflow is a technology invented by Cisco systems which allows routers to categorize related packets into flows based on a 7-tuple of IP source address, IP destination address, source port, destination port, protocol, TOS and interface. This technique has been used to switch traffic and to accelerate the switching operation. Today netflow is mainly used for traffic accounting and analysis.

Flexible NetFlow is a ground-up redesign and re-write of netflow, and allows users to define their own flow keys - so they're no longer limited to the 7-tuple.

Netflow exports data from routers to Netflow collectors using a proprietary netflow export format, in versions 1, 5, 8 and 9. IPFIX is the IETF standard developed from the netflow v9 export format. Netflow v9 and IPFIX are template based export formats which are capable of exporting almost any information from the router.

Type: Networkpedia - Archive ID: 3.2118 - 196 Views - Last Updated: January 29, 2009 14:43:38
Tags: cisco NetFlow network management