Configuring Sflow; Displaying Sflow; Sflow Configuration Example - 3Com Switch 4800G 24-Port Configuration Manual

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Operation of sFlow

Configuring sFlow

Displaying sFlow

sFlow Configuration
Example
C
ONFIGURATION
sFlow operates as follows:
1 With sFlow enabled, a physical port encapsulates received data into packets and
sends them to the sFlow agent.
2 The sFlow agent periodically collects interface statistics on all sFlow enabled ports.
3 When the sFlow packet buffer overflows or the one-second timer expires, the
sFlow agent sends the sFlow packets to the specified sFlow collector.
Follow these steps to configure sFlow:
To do...
Enter system view
Configure an IP address for
the sFlow agent
Specify the IP address and
port number of the sFlow
collector
Set the sFlow interval
Enter interface view
Enable sFlow in the inbound
or outbound direction
Specify the sFlow sampling
mode
Specify the sFlow sampling
rate
c
CAUTION:
The sFlow agent and sFlow collector must not have the same IP address.
■
Currently, you can specify at most two sFlow collectors on the Switch 4800G
■
Family.
To do...
Display sFlow configuration
information
Network requirements
Host A and Server are connected to Switch through GigabitEthernet 1/0/1 and
■
GigabitEthernet 1/0/2 respectively.
Host B works as an sFlow collector with IP address 3.3.3.2 and port number
■
6343, and is connected to Switch through GigabitEthernet 1/0/3.
Use the command...
system-view
sflow agent ip ip-address
sflow collector ip ip-address
[ port port-num ]
sflow interval interval-time
interface interface-type
interface-number
sflow enable { both |
inbound | outbound }
sflow sampling-mode
{ determine | random }
sflow sampling-rate rate
Use the command...
display sflow
Remarks
-
Required
Not configured by default.
Required
Not specified by default.
Optional
20 seconds by default.
-
Required
Not enabled by default.
Optional
random by default.
Currently, the determine
mode is not supported on the
Switch 4800G.
Optional
200000 by default.
Remarks
Available in any view