Configuring Sflow; Protocols And Standards; Configuration Restrictions And Guidelines; Sflow Configuration Task List - HPE FlexNetwork 10500 series Configuration Manual

Configuring sFlow

sFlow is a traffic monitoring technology.
As shown in
remote sFlow collector. The sFlow agent collects interface counter information and packet
information and encapsulates the sampled information in sFlow packets. When the sFlow packet
buffer is full, or the aging timer (fixed to 1 second) expires, the sFlow agent performs the following
actions:
•
Encapsulates the sFlow packets in the UDP datagrams.
•
Sends the UDP datagrams to the specified sFlow collector.
The sFlow collector analyzes the information and displays the results. One sFlow collector can
monitor multiple sFlow agents.
sFlow provides the following sampling mechanisms:
•
Flow sampling—Obtains packet information.
•
Counter sampling—Obtains interface counter information.
Figure 80 sFlow system
sFlow agent
Flow
sampling
Counter
sampling
Device

Protocols and standards

•
RFC 3176, InMon Corporation's sFlow: A Method for Monitoring Traffic in Switched and Routed
Networks
•
sFlow.org, sFlow Version 5

Configuration restrictions and guidelines

When you configure sFlow in an EVPN network, you must specify the source IP address of sFlow
packets by using the sflow source command. For information about EVPN, see EVPN
Configuration Guide.

sFlow configuration task list

Tasks at a glance
(Required.)
Figure 80, the sFlow system involves an sFlow agent embedded in a device and a
Ethernet
header
Configuring the sFlow agent and sFlow collector information
IP UDP
sFlow Datagram
header header
276
sFlow collector