Implementation Of Netstream; Configuring Netstream; Netstream Configuration Task List - H3C S7500 Series Operation Manual

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Operation Manual – NAT, Netstream, Policy Routing

H3C S7500 Series Ethernet Switches

The NDA analyzes the data it received, and the analysis result can be used for

network charging and deployment.

2.1.2 Implementation of Netstream

With Netstream enabled, a stream entry is first created and saved in the Netstream

cache for the system to collect statistics about the stream. Once a preset aging time is

reached, the system sends the stream entry in a Netstream export packet (generated

by encapsulating the stream entry in a UDP packet) to NSC and deletes (ages) the

entry from the Netstream cache.

The aging has two ways:

Aging by active time: a stream entry is aged out when the active time of the stream

(the time elapsed since the stream entry was created) exceeds the corresponding

preset time limit.

Aging by inactive time: a stream entry is aged out when the inactive time of the

stream (the time elapsed since the last packet of the stream passed the switch)

exceeds the corresponding preset time limit.

Netstream can use three versions of Netstream export packets to send aged stream

entries: version 5, version 8 and version 9. But currently, only version 5 and version 9

are configurable:

If version 5 is configured: the system sends normal stream entries through version

5 packets and sends aggregated stream entries through version 8 packets. (For

brevity reason, this will not be mentioned when version 5 is involved in the

following text.)

If version 9 is configured: the system sends all aged stream entries through

version 9 packets.

If Netstream aggregation is configured, the system classifies and aggregates stream

entries into aggregation entries according to configured aggregation rules, and then

sends aggregation entries through Netstream export packets.

Complete the following tasks to configure Netstream:

Chapter 2 Netstream Configuration

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