Preface, Audience, Conventions – H3C Technologies H3C SecBlade NetStream Cards User Manual
Page 3: Command conventions
Preface
An H3C SecBlade NetStream (referred to as NS hereinafter) card is inserted in an H3C S7500E,
S9500E, or S12500 switch, implementing classification and collection of network traffic. It collects and
analyzes traffic in the network and sends the statistics in UDP packets to the NetStream Collector (NSC),
which then collects and analyzes the data. The output data of the NS card can be used in network
management and planning, enterprise accounting, charging per department, ISP bill, data storage and
backup, and data collection for business purposes.
In this manual, the switches that support SecBlade NetStream cards are referred to as host devices.
This preface includes:
•
•
•
About the SecBlade NetStream card documentation set
•
•
•
Audience
This documentation is intended for:
•
Network planners
•
Field technical support and servicing engineers
•
Network administrators working with the SecBlade NetStream cards
Conventions
This section describes the conventions used in this documentation set.
Command conventions
Convention Description
Boldface
Bold text represents commands and keywords that you enter literally as shown.
Italic
Italic text represents arguments that you replace with actual values.
[ ]
Square brackets enclose syntax choices (keywords or arguments) that are optional.
{ x | y | ... }
Braces enclose a set of required syntax choices separated by vertical bars, from which
you select one.
[ x | y | ... ]
Square brackets enclose a set of optional syntax choices separated by vertical bars, from
which you select one or none.
{ x | y | ... } *
Asterisk marked braces enclose a set of required syntax choices separated by vertical
bars, from which you select at least one.