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

1204 CHAPTER 94: SFLOW CONFIGURATION
Operation of sFlow 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.
Configuring sFlow Follow these steps to configure sFlow:
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.
Displaying sFlow
sFlow Configuration
Example
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.
To do… Use the command… Remarks
Enter system view system-view -
Configure an IP address for
the sFlow agent
sflow agent ip ip-address Required
Not configured by default.
Specify the IP address and
port number of the sFlow
collector
sflow collector ip ip-address
[ port port-num ]
Required
Not specified by default.
Set the sFlow interval sflow interval interval-time Optional
20 seconds by default.
Enter interface view interface interface-type
interface-number
-
Enable sFlow in the inbound
or outbound direction
sflow enable { both |
inbound | outbound }
Required
Not enabled by default.
Specify the sFlow sampling
mode
sflow sampling-mode
{ determine | random }
Optional
random by default.
Currently, the determine
mode is not supported on the
Switch 4800G.
Specify the sFlow sampling
rate
sflow sampling-rate rate Optional
200000 by default.
To do… Use the command… Remarks
Display sFlow configuration
information
display sflow Available in any view