Monitoring Switch Traffic 391
15
Monitoring Switch Traffic
This chapter describes sFlow features, Remote Monitoring (RMON), and
Port Mirroring features.
The topics covered in this chapter include:
• Traffic Monitoring Overview
• Default Traffic Monitoring Values
• Monitoring Switch Traffic (Web)
• Monitoring Switch Traffic (CLI)
• Traffic Monitoring Configuration Examples
Traffic Monitoring Overview
The switch maintains statistics about network traffic that it handles. It also
has embedded technology that collects and sends information about traffic to
other devices. PowerConnect 7000 Series switches include support for flow-
based monitoring through sFlow and Remote Network Monitoring (RMON)
agents.
What is sFlow Technology?
sFlow is an industry standard technology for monitoring high-speed switched
and routed networks. PowerConnect 7000 Series switch software has a built-
in sFlow agent that can monitor network traffic on each port and generate
sFlow data to an sFlow receiver (also known as a collector). sFlow helps to
provide visibility into network activity, which enables effective management
and control of network resources. sFlow is an alternative to the NetFlow
network protocol, which was developed by Cisco Systems. The switch
supports sFlow version 5.
As illustrated in Figure 15-1, the sFlow monitoring system consists of sFlow
Agents (such as PowerConnect 7000 Series switches) and a central sFlow
receiver. sFlow Agents use sampling technology to capture traffic statistics
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