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DGS-3400 Series Layer 2 Gigabit Managed Switch CLI Manual
392
create sflow flow_sampler ports
Purpose Used to configure the flow sampler settings for the sFlow function.
Syntax
create sflow flow_sampler ports [<portlist> | all] analyzer_server_id <value 1-4>
{rate <value 0-65535> | maxheadersize <value 18-256>}
Description This command is used to configure the Switch’s settings for taking sample packets from
the network, including the sampling rate and the amount of the packet header to be
extracted.
Parameters
<portlist> − Use this parameter to set the ports that will be mined for sFlow information.
all – Use this parameter to set all ports to be mined for sFlow information.
analyzer_server_id <value 1-4> − Enter a value from 1 to 4 to identify the sFlow server
where this information will be sent.
rate <value 0-65535> − Users can set the rate of packet sampling here. The value
entered here is to be multiplied by 256 to get the percentage of packets sampled. For
example, if the user enters a figure of 20 into this field, the switch will sample one out of
every 5120 packets (20 x 256 = 5120) that pass through the individual port. Users may
enter a value between 1 and 65535. An entry of 0 disables the packet sampling. Since
this is the default setting, users are reminded to configure a rate here or this function will
not function.
maxheadersize <value 18-256> − This field will set the number of leading bytes of the
sampled packet header. This sampled header will be encapsulated with the datagram to
be forwarded to the Analyzer Server. The user may set a value between 18 and 256
bytes. The default setting is 128 bytes.
Restrictions Only Administrator and Operator-level users can issue this command.
Example usage:
To create the sFlow flow sampler:
DGS-3426:5#create sflow flow
sampler ports 1 analyzer
server
id 1 rate 10000
maxheadersize 128
Command: create sflow flow
sampler ports 1 analyzer
server
id 1 rate 10000
maxheadersize 128
Success.
DGS-3426:5#
