H3C Technologies H3C MSR 50 - Manual (Page 105)

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. This process is the
NetStream aggregation data export, which uses less bandwidth than traditional data export.
For example, the aggregation mode configured on the NDE is protocol-port, which means that is
aggregates statistics about 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
flow is created and sent to the NetStream server.
Table 3 lists the 12 aggregation modes. In each mode, the system merges flows into one aggregation
flow if the aggregation criteria are of the same value. These 12 aggregation modes work independently
and can be configured on the same interface.
Table 3 NetStream aggregation modes
Aggregation mode Aggregation criteria
• Source AS number
• Destination AS number
AS aggregation
• Inbound interface index
• Outbound interface index
• Protocol number
• Source port Protocol-port aggregation
• Destination port
• Source AS number
• Source address mask length
Source-prefix aggregation
• Source prefix
• Inbound interface index
• Destination AS number
Destination-prefix aggregation
s mask length
ex
• Destination addres
• Destination prefix
• Outbound interface ind
• Source AS number
• Destination AS number
• Source address mask length
Prefix aggregation
dress mask length
• Outbound interface index
• Destination ad
• Source prefix
• Destination prefix
• Inbound interface index
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