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Netstream aggregation data export – H3C Technologies H3C MSR 5600 User Manual

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NetStream aggregation data export

NetStream aggregation merges the flow statistics according to the aggregation criteria of an

aggregation mode, and it sends the summarized data to the NetStream server. The NetStream
aggregation data export uses less bandwidth than the traditional data export.

Table 19

lists the available aggregation modes. In each mode, the system merges flows into one

aggregate flow if each aggregation criterion is of the same value, and records the statistics of the

aggregate flow. These aggregation modes work independently and can be configured on the same
interface.
For example, the aggregation mode configured on the NDE is protocol-port, which means that it

aggregates the statistics of flow entries by protocol number, source port, and destination port. Four

NetStream entries record four TCP flows with the same destination address, source port, and destination
port, but with different source addresses. In the aggregation mode, only one NetStream aggregation

entry is created and sent to the NetStream server.

Table 13 NetStream aggregation modes

Aggregation mode

Aggregation criteria

AS aggregation

Source AS number

Destination AS number

Inbound interface index

Outbound interface index

Protocol-port aggregation

Protocol number

Source port

Destination port

Source-prefix aggregation

Source AS number

Source address mask length

Source prefix (source network address)

Inbound interface index

Destination-prefix aggregation

Destination AS number

Destination address mask length

Destination prefix (destination network address)

Outbound interface index

Prefix aggregation

Source AS number

Destination AS number

Source address mask length

Destination address mask length

Source prefix

Destination prefix

Inbound interface index

Outbound interface index

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