Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 1033

51 sFlow sFlow is a standard-based sampling technology embedded within switches and routers which is used to monitor network traffic. It is designed to provide traffic monitoring for high-speed networks with many switches and routers. Topics: • Overview • Implementation Information • Enabling and Disabling sFlow • Enabling and Disabling sFlow on an Interface • sFlow Show Commands • Configuring Specify Collectors • Changing the Polling Intervals • Back-Off Mechanism • sFlow on LAG ports • Enabling Extended sFlow Overview The Dell Networking OS supports sFlow version 5. sFlow uses two types of sampling: • Statistical packet-based sampling of switched or routed packet flows. • Time-based sampling of interface counters. The sFlow monitoring system consists of an sFlow agent (embedded in the switch/router) and an sFlow collector. The sFlow agent resides anywhere within the path of the packet and combines the flow samples and interface counters into sFlow datagrams and forwards them to the sFlow collector at regular intervals. The datagrams consist of information on, but not limited to, packet header, ingress and egress interfaces, sampling parameters, and interface counters. Application-specific integrated circuits (ASICs) typically complete packet sampling. sFlow collector analyses the sFlow datagrams received from different devices and produces a network-wide view of traffic flows. sFlow 1033