H3C Technologies H3C SecBlade NetStream Cards - Manual (Page 165)

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NOTE:
The refresh frequency and interval can be both configured, and the template is resent when either of the
condition is reached.
Configuring IPv4 NetStream flow aging
Follow these steps to configure flow aging:
To do… Use the command… Remarks
Enter system view system-view —
Configure periodical
aging
Set the aging timer for
active flows ip netstream timeout active
minutes Optional
30 minutes by default.
Set the aging timer for
inactive flows ip netstream timeout inactive
seconds
Optional
30 seconds by default.
Configure forced aging
of the IPv4 NetStream
entries
Set the maximum entries
that the cache can
accommodate
ip netstream max-entry
max-entries
Optional
Exit to user view quit —
Configure forced aging reset ip netstream statistics
Optional
This command also
clears the cache
Enabling DSA-TAG field parsing
The host device can use the DSA-TAG field to indicate special information, such as inbound and
outbound port numbers. The SecBlade NetStream card can collect statistics based on the inbound or
outbound port by parsing the DSA-TAG field of mirrored packets.
This feature is effective only for SecBlade NetStream cards on S9500E and S12500 switches.
To enable this function, you must configure the switch to ensure that packets mirrored to the SecBlade
NetStream card carry dsa-tags.
Follow these steps to enable DSA-TAG field parsing:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view interface ten-gigabitethernet 0/0 —
Enable DSA-TAG field
parsing
dsa-tag switch
Optional
By default, DSA-TAG field parsing is
disabled.