H3C Technologies H3C MSR 50 - Manual (Page 112)

Configuring attributes of NetStream export data
Configuring NetStream export format
The NetStream export format exports NetStream data in version 5 or version 9 formats, and the data
fields can be expanded to contain more information, including the following:
• Statistics about source AS, destination AS, and peer ASs in version 5 or version 9 export format.
• Statistics about BGP next hop in version 9 format only.
To configure the NetStream export format:
Step Command Remarks
244. Enter system view. system-view N/A
Optional.
By default:
• NetStream traditional data export
uses version 5.
245. Configure the version
for NetStream export
format, and specify
whether to record AS
and BGP next hop
information.
• ip netstream export version 5
[ origin-as | peer-as ]
• IPv4 NetStream aggregation data
export uses version 8.
• ip netstream export version 9
[ origin-as | peer-as ]
[ bgp-nexthop ]
• MPLS flow data is not exported.
• The peer AS numbers are exported
for the source and destination.
• The BGP next hop is not exported.
For more information about an AS, see Layer 3—IP Routing Configuration Guide.
A NetStream entry for a flow records the source IP address and the destination IP address, each with two
AS numbers. The source IP address includes the source AS from which the flow originates and the peer
AS from which the flow travels to the NetStream-enabled device. The destination IP address includes the
destination AS to which the flow is destined and the peer AS to which the NetStream-enabled device
passes the flow.
To specify which AS numbers to record for the source and destination IP addresses, include the peer-as
or origin-as keyword. For example, as shown in Figure 33 , a flow starts at AS 20, passes AS 21 through
AS 23, and then reaches AS 24. NetStream is enabled on the device in AS 22. If the peer-as keyword
is provided, the command records AS 21 as the source AS and AS 23 as the destination AS. If the
origin-as keyword is provided, the command records AS 20 as the source AS and AS 24 as the
destination AS.
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