HP MSR2000/3000/4000 Router Series Network Management and Monitoring Configuration Guide

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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 13 li
sts 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
A
gg
re
g
ation mode A
gg
re
g
ation 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