Conventions

This describes the conventions of symbol, format and expression methods.

Content Conventions

The purchased products, services and features are stipulated by the contract made between Huawei Technologies Co., Ltd. and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.

Feature Conventions

The following operations may involve the collection of user communication information. Huawei does not collect or store the user communication information alone. You are advised to enable specific functions for the purpose allowed and within the scope defined in local laws and regulations. In usage, you are obligate to take considerable measures to ensure that user communication information is fully protected when the information is being used and stored.

Traffic mirrored by port mirroring-capable routers is the basis for traffic statistics and analysis on a detection device but may involve the collection of user communication information. You can choose to configure a detection device to discard mirrored traffic after traffic statistics is collected.
Packet capturing is vital to attack source tracing and attack feature analysis but may involve the collection of user communication information. The product provides permission control over such functions. You are advised to clear packet capturing records after attack source tracing and traffic analysis are complete.
The anti-DDoS collectors collects only traffic logs, not user communication information.

Symbol Conventions

The symbols that may be found in this document are defined as follows.

Symbol	Description
	Indicates a hazard with a high level of risk, which if not avoided, will result in death or serious injury.
	Indicates a hazard with a medium or low level of risk, which if not avoided, could result in minor or moderate injury.
	Indicates a potentially hazardous situation, which if not avoided, could result in equipment damage, data loss, performance degradation, or unexpected results.
	Indicates a tip that may help you solve a problem or save time.
	Provides additional information to emphasize or supplement important points of the main text.

General Conventions

The general conventions that may be found in this document are defined as follows.

Convention	Description
Times New Roman	Normal paragraphs are in Times New Roman.
Boldface	Names of files, directories, folders, and users are in boldface. For example, log in as user root.
Italic	Book titles are in italics.
Courier New	Examples of information displayed on the screen are in Courier New.

Command Conventions

The command conventions that may be found in this document are defined as follows.

Convention	Description
Boldface	The keywords of a command line are in boldface.
Italic	Command arguments are in italics.
[ ]	Items (keywords or arguments) in brackets [ ] are optional.
{ x \| y \| ... }	Optional items are grouped in braces and separated by vertical bars. One item is selected.
[ x \| y \| ... ]	Optional items are grouped in brackets and separated by vertical bars. One item is selected or no item is selected.
{ x \| y \| ... } ^*	Optional items are grouped in braces and separated by vertical bars. A minimum of one item or a maximum of all items can be selected.
[ x \| y \| ... ] ^*	Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected.
&<1-n>	The parameter before the & sign can be repeated 1 to n times.
#	A line starting with the # sign is comments.

GUI Conventions

The GUI conventions that may be found in this document are defined as follows.

Convention	Description
Boldface	Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK.
>	Multi-level menus are in boldface and separated by the ">" signs. For example, choose File > Create > Folder.

Keyboard Operations

The keyboard operations that may be found in this document are defined as follows.

Format	Description
Key	Press the key. For example, press Enter and press Tab.
Key 1+Key 2	Press the keys concurrently. For example, pressing Ctrl+Alt+A means the three keys should be pressed concurrently.
Key 1, Key 2	Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn.

Mouse Operations

The mouse operations that may be found in this document are defined as follows.

Action	Description
Click	Select and release the primary mouse button without moving the pointer.
Double-click	Press the primary mouse button twice continuously and quickly without moving the pointer.
Drag	Press and hold the primary mouse button and move the pointer to a certain position.