Sflow - Proxim Edge MP-1035-CPE Device Management Manual

6.6 sFlow®
Proxim point-to-multipoint and point-to-point devices support sFlow® technology, developed by InMon Corporation. The
sFlow® technology provides the ability to measure network traffic on all interfaces simultaneously by collecting, storing, and
analyzing traffic data.
Depicted below is the sFlow architecture that consists of a sFlow Agent and a sFlow Receiver.
The sFlow Agent, which is running on devices, captures traffic information received on all the Ethernet interfaces, and sends
sampled packets to the sFlow Receiver for analysis.
The sampling mechanism used to sample data are as follows:
•
Packet Flow Sampling: In this sampling, the data packets received on the Ethernet interface of the device are
sampled based on a counter. With each packet received, the counter is decremented. When the counter reaches zero,
the packet is packaged and sent to the sFlow Receiver for analysis. These packets are referred to as Packet Flow
Samples.
•
Counter Polling Sampling: In this sampling, the sFlow Agent sends counters periodically to the sFlow Receiver based
on the set polling interval. If polling interval is set to 5 seconds then the sFlow Agent sends counters to sFlow Receiver
every 5 seconds. These packets are referred to as Counter Polling Samples.
The Packet Flow Samples and Counter Polling Samples are collectively sent to the sFlow Receiver as sFlow Datagrams. It is
possible to enable either or both types of sampling.
sFlow Sampling effects the system performance and hence care must be taken in configuring the sFlow parameters.
To configure sFlow, navigate to MONITOR > Tools > sFlow. Following information is displayed about the sFlow Agent:
•
Version: The version comprises the following information:
1. sFlow MIB Version: Indicates the agent's MIB version. The MIB specifies how the agent extracts and bundles
sampled data, and the sFlow receiver must support the agent's MIB. For example, if the sFlow MIB version is 1.3,
the sFlow Receiver's version must also be at least 1.3.
2. Organization: Specifies the organization implementing sFlow Agent functionality on the device. For example
Proxim Wireless Corp.
3. Revision: Specifies the sFlow Agent version. For example v6.4.
•
Address Type: Specifies the protocol version for IP addresses.
•
Agent Address: Specifies the sFlow Agent's IP address.
Device Management Guide
Figure 6-11 sFlow Architecture - An Example with a BSU and SUs
Tools
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