xStack DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch CLI Manual
259
create sflow flow_sampler ports
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-level
and operator-level users can issue this
command.
Example usage:
To create the sFlow flow sampler:
DGS-3627:5#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-3627:5#
config sflow flow_sampler ports
Purpose
Used to configure the flow sampler settings for the sFlow function.
Syntax
config sflow flow_sampler ports [<portlist> | all] {rate <value 0-
65535> | maxheadersize <value 18-256>
Description
This command will allow users 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.
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.
