export version

Function

The export version command sets a version for outputting aggregated flows.

The undo export version command restores the default format version.

By default, IPv4 flows aggregated in mpls-label, bgp-nexthop-tos, index-tos, vlan-id, bgp-community, vni-sip-dip, or source-index-tos mode are output in V9 format, you can configure the device to output aggregated IPv4 flows in IPFIX format. IPv4 flows aggregated in any other mode are output in V8 format. You can configure the device to output aggregated IPv4 flows in IPFIX format. By default, all aggregated IPv6 flows are output in V9 format. You can also configure the device to output aggregated IPv6 flows in IPFIX format.

Format

export version { 8 | 9 }

export version ipfix

undo export version

Parameters

Parameter	Description	Value
8	Outputs aggregated flows in V8 format.	-
9	Outputs aggregated flows in V9 format. V8 and V9 are incompatible with each other. In V9 format, NetStream flows are output based on templates.	-
ipfix	Outputs aggregated flows in ipfix format.	-

Parameter

Description

Value

Outputs aggregated flows in V8 format.

Outputs aggregated flows in V9 format. V8 and V9 are incompatible with each other. In V9 format, NetStream flows are output based on templates.

ipfix

Outputs aggregated flows in ipfix format.

Views

IPv6 NetStream aggregation view, NetStream aggregation view

Default Level

3: Management level

Task Name and Operations

Task Name	Operations
netstream	write

Usage Guidelines

Usage Scenario

NetStream IPv4 original flows can be output in V5 or V9 or IPFIX format, and NetStream aggregated flows can be output in V8 or V9 or IPFIX format. Unlike the V5 or V8 format, the V9 or IPFIX format allows the output original flows to carry more variable statistics, expand newly-defined flow elements more flexibly, and generate new records more easily. V9, or IPFIX is incompatible with V5 and V8.

Aggregated flows can be output in V5, V8, or V9 or IPFIX format as determined by the NMS configuration. In the following situation, aggregated flows must be output in V9 or IPFIX format when interface indexes carried in the output flows need to be extended from 16 bits to 32 bits.

Prerequisites

The NMS is able to parse flows output in V9 or IPFIX format.

Precautions

Flows aggregated in one of the following modes can be output in V9 or IPFIX format or in V8 format by default:

as
as-tos
destination-prefix
destination-prefix-tos
prefix
prefix-tos
protocol-port
protocol-port-tos
source-prefix
source-prefix-tos
Flows aggregated in the following aggregation modes can only be output in V9 or IPFIX format:
mpls-label
vlan-id
bgp-nexthop-tos
index-tos
source-index-tos
vni-sip-dip
bgp-community
Aggregated IPv6 flows can only be output in V9 or IPFIX format.

Example

# Configure flows aggregated based on AS numbers to be output in V9 format.

<HUAWEI> system-view
[~HUAWEI] ip netstream aggregation as
[*HUAWEI-aggregation-as] export version 9