01/30/2011

Netflow Protocol

NetFlow - network protocol developed by Cisco, works based on Cisco ios, and is designed to gather information about traffic within the network. NetFlow is a proprietary but supported platforms other than Cisco ios, such as Juniper routers or OpenBSD / FreeBSD. Cisco routers enabled NetFlow, generate netflow records. These packages are exported to the router for udp (User Datagram Protocol) or a transfer protocol with flow control sctp (Stream Control Transmission Protocol), and stored using a netflow collector. Other vendors have similar functions in their routers, but with different names: Jflow or cflowd for Juniper NetworksNetStream for Huawei TechnologyCflowd for Alcatel- original protocol is Cisco Systems, NetFlow was published as a standard IETF: Internet Protocol Flow Information eXport (IPFIX). ipfix is based on the realization of Netflow v9 (RFC 3954). You can find more information in mywebsearch.

Many suppliers of network equipment has already been added ipfix support to their devices. Introduced with the launch equipment Cisco asa 5580 Series, Registration Events Security NetFlow uses templates and fields Netflow v9, for the effective delivery of telemetry security high-performance environments. The scale of NetFlow Security Event Logging is significantly higher than syslogd, offering the same level and degree of detail for recorded events. Network flow (network flow) was determined in various ways.

Jan 30, 2011 5:11:19 PM | Web/Tech, Weblogs

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