Configuring Sflow; Sflow Agent Summary; Figure 60: Sflow Agent Summary; Table 50: Sflow Agent Summary - D-Link DWS-4026 User Manual

D-Link Unified Access System
C
ONFIGURING S
®
sFlow is the standard for monitoring high-speed switched and routed networks. sFlow technology is built into network
equipment and gives complete visibility into network activity, enabling effective management and control of network
resources.
The sFlow monitoring system consists of an sFlow Agent (embedded in a switch or router or in a standalone probe) and a
central sFlow Collector. The sFlow Agent uses sampling technology to capture traffic statistics from the device it is
monitoring. sFlow datagrams are used to immediately forward the sampled traffic statistics to an sFlow Collector for analysis.
The sFlow Agent uses two forms of sampling: statistical packet-based sampling of switched or routed Packet Flows, and
time-based sampling of counters.
F A S
S LOW GENT UMMARY
Packet Flow Sampling and Counter Sampling are performed by sFlow Instances associated with individual Data Sources
within the sFlow Agent. Packet Flow Sampling and Counter Sampling are designed as part of an integrated system. Both
types of samples are combined in sFlow datagrams. Packet Flow Sampling will cause a steady, but random, stream of sFlow
datagrams to be sent to the sFlow Collector. Counter samples may be taken opportunistically in order to fill these datagrams.
In order to perform Packet Flow Sampling, an sFlow Sampler Instance is configured with a Sampling Rate. The Packet Flow
sampling process results in the generation of Packet Flow Records. In order to perform Counter Sampling, the sFlow Poller
Instance is configured with a Polling Interval, The Counter Sampling process results in the generation of Counter Records.
The sFlow Agent collects Counter Records and Packet Flow Records and sends them in the form of sFlow datagrams to
sFlow Collectors.
To access the sFlow Agent Summary page, click LAN > Monitoring > sFlow > Agent Summary in the navigation tree.
Field Description
Version Uniquely identifies the version and implementation of this MIB. The version string must have the
following structure: MIB Version;Organization;Software Revision where:
• MIB Version: '1.3', the version of this MIB.
• Organization: D-Link Corporation
• Revision: 1.0
Agent Address The IP address associated with this agent.
Page 120

Configuring sFlow

F
LOW

Figure 60: sFlow Agent Summary

Table 50: sFlow Agent Summary

Software User Manual
Document 34CSFP6XXUWS-SWUM100-D7
12/10/09