sFlow does not cache data, instead sFlow datagrams are sent in real-time to a collector where they are analyzed. It is a stateless packet sampling protocol designed for fast monitoring samplings. Here is the correct URL when testing NetFlow Vs. sFlow: Reply. Netflow vs sFlow, whats the difference between these to flow protocols and which one should you be using?. SFlow vs NetFlow vs SNMP, the differences are hence clear: SNMP for standard network monitoring whereas SFlow/NetFlow for high traffic network traffic collection, monitoring and analysis. Great post Adam. SFlow SFlow developed by InMon is a packet sampling technology where the switch captures every 100th packet (configurable) per interface and sends it off to the collector. Collecting traffic data, correlating it into a usable format, and presenting it to the user through a web-based interface for monitoring network traffic. We get this question all the time, so we figured we give a quick analysis and rundown of the two flow export protocols to show you some of the main differences between them. sFlow stands for sampled Flow and is used for exporting packets at the data link layer. SNMP is defined in RFC 1157 (August 1990) but the design of SNMPv1 was done already in the 1980s. SFlow vs NetFlow, the debate between these two flow protocols has been around for many years. A fiery debate arises when discussing flow technologies i.e. Jake Wilson September 17, 2012 at 6:12 AM. While NetFlow processes all of the packets flowing through the interface on a router or firewall and the metadata is created on the device itself, switches supporting sFlow send a sampling packet of the traffic it’s receiving through its interfaces. SFlow was developed by InMon Corporation. Monitoring IPFIX, Cisco NetFlow, Juniper J-Flow, sFlow, and Huawei NetStream flow data allowing it to identify which devices, applications, and protocols are the highest bandwidth consumers. Somehow the URL got cut off in my last post. Reply. With sFlow, the device that receives the sampling packet must generate all the metadata. 14 comments on “ NetFlow vs. sFlow for Network Monitoring and Security: The Final Say ” Jimmy D says: August 28, 2012 at 8:21 am . As we all know, existing flow technologies act as a vital and viable solution to troubleshoot network and bandwidth issues. The people that I work with find sFlow limiting and most of the time are quite disappointed in the results. sFlow can provide statistics on different protocols from Layer 2 to Layer 7 of the OSI model. NetFlow vs. sFlow. This issue may be solved by using sFlow instead of NetFlow. Network monitoring has … SFlow vs NetFlow: SFlow for Multiprotocol, NetFlow for Better Accuracy. Replies. Netflow vs sFlow. 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