collect

Function

The collect command configures the flexible flow statistics sent to the NetStream Collector (NSC) to contain the number of bytes, number of packets, and first and last forwarding time.

The undo collect command configures the flexible flow statistics sent to the NSC not to contain the number of bytes, number of packets, and first and last forwarding time.

By default, the flexible flow statistics sent to the NSC does not contain the number of bytes, number of packets, and first and last forwarding time.

Format

collect { first | last } switched

collect input { packets | bytes } { length }

undo collect { first | last } switched

undo collect input { packets | bytes } [ length ]

Parameters

Parameter	Description	Value
first	Configures the flexible flow statistics sent to the NSC to contain the first forwarding time.	-
last	Configures the flexible flow statistics sent to the NSC to contain the last forwarding time.	-
switched	Indicates the flexible flow statistics sent to the NSC.	-
input	Configures the flexible flow statistics sent to the NSC to contain the inbound interface information.	-
packets	Configures the flexible flow statistics sent to the NSC to contain the number of packets.	-
bytes	Configures the flexible flow statistics sent to the NSC to contain the number of bytes.	-
length	Specifies the length of the packets and bytes contained in the flexible flow statistics sent to the NSC.	The value can be16, 32, or 64.

Views

NetStream IPv6 record view., NetStream record view

Default Level

3: Management level

Task Name and Operations

Task Name	Operations
netstream	write

Usage Guidelines

Usage Scenario

To obtain more flow statistics, you can run the collect command to configure the flexible flow statistics output to contain the number of bytes, number of packets, and first and last forwarding time.

Prerequisites

Before you run the collect command, run the ip netstream record or ipv6 netstream record command to create a flexible flow statistics template.

Precautions

The maximum length that the flexible flow statistics template supports is 50 bytes, including the collect and match fields.

Lengths of the collect fields:

first: 4 bytes
last: 4 bytes
packets: 4 bytes
bytes: 4 bytes
Lengths of the match fields:
address: 4 bytes for an IPv4 address and 16 bytes for an IPv6 address
mask: 1 byte
port: 2 bytes
vlan: 2 bytes
as: 4 bytes
mpls top-label ip-address: 4 bytes
mpls label 1: 3 bytes
mpls label 2: 3 bytes
mpls label 3: 3 bytes
protocol: 1 byte
tos: 1 byte
direction: 1 byte
tcp-flag: 1 byte
input interface: 4 bytes
output interface: 4 bytes
next-hop: 4 bytes for an IPv4 address and 16 bytes for an IPv6 address
bgp next-hop: 4 bytes for an IPv4 address and 16 bytes for an IPv6 address

Example

# Configure the flexible flow statistics sent to the NSC to contain 64-byte number of inbound interface packets.

<HUAWEI> system-view
[~HUAWEI] ip netstream record tt
[*HUAWEI-record-tt] collect input packets 64
[*HUAWEI-record-tt] collect first switched