Sflow Thread Pools The apache web server uses a thread pool and is a useful demonstration of the value of the sflow thread pool metrics. the apache thread pool can be accessed using mod status, which makes the thread pool visible as a web page. This chapter describes how to configure sflow on cisco nx os devices. this chapter includes the following sections:.
Sflow Thread Pools You must first configure the sflow collector before configuring the sflow agent using the sflow create command. you must configure and enable sflow agent on each switch that you want to be part of the sflow monitoring system to monitor the network traffic. When enabled globally, bgp sflow export impacts all interfaces. when globally enabled, the switch performs sflow polling. the cli provides commands that globally turn off sampling while counter polling remains enabled. sample enabling is not controllable on individual interfaces. Sflow is a traffic monitoring technology. as shown in figure 1, the sflow system involves an sflow agent embedded in a device and a remote sflow collector. the sflow agent collects interface counter information and packet information and encapsulates the sampled information in sflow packets. Sflow is an industry standard technology for monitoring high speed switched networks. you can configure the big ip ® system to poll internal data sources and send data samples to an sflow receiver.
Sflow Thread Pools Sflow is a traffic monitoring technology. as shown in figure 1, the sflow system involves an sflow agent embedded in a device and a remote sflow collector. the sflow agent collects interface counter information and packet information and encapsulates the sampled information in sflow packets. Sflow is an industry standard technology for monitoring high speed switched networks. you can configure the big ip ® system to poll internal data sources and send data samples to an sflow receiver. In sflow, the focus is on collecting sampled network traffic data rather than recording full packet flows. sflow is designed to provide a statistical overview of network traffic by sampling packets and extracting relevant information for analysis. This chapter provides the steps for configuring sampled flow (sflow). sflow is the standard for monitoring high speed switched and routed networks. the sflow monitoring system consists of an sflow agent which is embedded in a switch or router and an sflow collector. When sflow is enabled globally, the sflow daemon is started, and sampling will start on all interfaces. when sflow is disabled globally, sampling is stopped on all relevant interfaces, and the sflow daemon is stopped. When sflow is enabled globally, the sflow deamon is started and sampling will start on all interfaces which have sflow enabled at the interface level (see “config sflow interface…”).