R0106-HP MSR Router Series Network Management and Monitoring Command Reference(V7)

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sflow flow max-header
Use sflow flow max-header to set the maximum number of bytes (starting from the packet header) that
flow sampling can copy per packet.
Use undo sflow flow max-header to restore the default.
Syntax
sflow flow max-header length
undo sflow flow max-header
Default
Flow sampling can copy up to 128 bytes of a packet.
Views
Layer 2 Ethernet interface view, Layer 3 Ethernet interface view
Predefined user roles
network-admin
Parameters
length: Specifies the maximum number of bytes that can be copied, in the range of 18 to 512. HP
recommends the default.
Examples
# Set the maximum number of bytes that can be copied to 60 on GigabitEthernet 2/1/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 2/1/1
[Sysname-GigabitEthernet2/1/1] sflow flow max-header 60
sflow sampling-mode
Use sflow sampling-mode to specify a flow sampling mode.
Use undo sflow sampling-mode to restore the default.
Syntax
sflow sampling-mode { determine | random }
undo sflow sampling-mode
Default
The flow sampling mode is determine.
Views
Layer 3 Ethernet interface view
Predefined user roles
network-admin
Parameters
determine: Specifies the fixed sampling mode. For example, if the flow sampling interval is set to 4000
(by using the sflow sampling-rate command), the device samples packets as follows:
• The device randomly samples a packet, like the tenth packet, from the first 4000 packets.