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Configuring sFlow example

Network requirements

As shown in Figure 81, Host A is connected with Server through Switch (sFlow agent).

Enable sFlow (including flow sampling and counter sampling) on GigabitEthernet 1/0/1 to monitor

traffic on the port. The Switch sends sFlow packets through GigabitEthernet 1/0/3 to the sFlow collector,

which analyzes the sFlow packets and displays results.

Figure 81 Network diagram for sFlow configuration

Configuration procedure

1. Configure the sFlow agent and sFlow collector

# Configure the IP address of Vlan-interface 1 on Switch as 3.3.3.1/16.

<Switch> system-view

[Switch] interface vlan-interface 1

[Switch-Vlan-interface1] ip address 3.3.3.1 16

[Switch-Vlan-interface1] quit

# Specify the IP address for the sFlow agent.

[Switch] sflow agent ip 3.3.3.1

# Specify sFlow collector ID 2, IP address 3.3.3.2, the default port number, and description of netserver

for the sFlow collector.

[Switch] sflow collector 2 ip 3.3.3.2 description netserver

2. Configure counter sampling

# Set the counter sampling interval to 120 seconds.

[Switch] interface gigabitethernet 1/0/1

[Switch-GigabitEthernet1/0/1] sflow counter interval 120

# Specify sFlow collector 2 for counter sampling.

[Switch-GigabitEthernet1/0/1] sflow counter collector 2

3. Configure flow sampling

# Set the Flow sampling mode and sampling rate.

[Switch-GigabitEthernet1/0/1] sflow sampling-mode random

[Switch-GigabitEthernet1/0/1] sflow sampling-rate 4000

# Specify sFlow collector for flow sampling.

[Switch-GigabitEthernet1/0/1] sflow flow collector 2

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HP 5820X Switch Specifications

General

Form Factor	Rack-mountable
Power over Ethernet (PoE)	No
Flash Memory	512 MB
Redundant Power Supply	Optional
VLAN Support	Yes
Quality of Service (QoS)	Yes
IPv6 Support	Yes
Layer	3
Routing Protocol	BGP, IS-IS, OSPF, RIP, VRRP, PIM
Remote Management Protocol	SNMP 1, RMON, Telnet, SNMP 3, SNMP 2c, CLI, SSH
Features	Quality of Service (QoS), VLAN support, Access Control List (ACL), IPv6 support
Compliant Standards	IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1s, IEEE 802.1w, IEEE 802.3, IEEE 802.3ab, IEEE 802.3z
Port Type	10/100/1000Base-T
Power Source	AC power supply
Security Features	Access Control List (ACL)
Layer Supported	L2/L3