vrp.pdf

 A configuration file is a collection of command lines. Current configurations are stored in a configuration file so that the configurations are still effective after the device restarts. Users can view configurations in the configuration file and upload the configuration file to other...

 A configuration file is a collection of command lines. Current configurations are stored in a configuration file so that the configurations are still effective after the device restarts. Users can view configurations in the configuration file and upload the configuration file to other devices to implement batch configuration. A patch is a kind of software compatible with the system software. It is used to fix bugs in system software. Patches can also fix system defects and optimize some functions to meet service requirements. To manage files on a device, log in to the device through either of the following modes: ▫ Local login through the console port or Telnet ▫ Remote login through FTP, TFTP, or SFTP  Storage media include SDRAM, flash memory, NVRAM, SD card, and USB. ▫ SDRAM stores the system running information and parameters. It is equivalent to a computer's memory. ▫ NVRAM is nonvolatile. Writing logs to the flash memory consumes CPU resources and is time-consuming. Therefore, the buffer mechanism is used. Specifically, logs are first saved to the buffer after being generated, and then written to the flash memory after the timer expires or the buffer is full. ▫ The flash memory and SD card are nonvolatile. Configuration files and system files are stored in the flash memory or SD card. For details, see the product documentation. ▫ SD cards are external memory media used for memory expansion. The USB is considered an interface. It is used to connect to a large-capacity storage medium for device upgrade and data transmission. ▫ Patch and PAF files are uploaded by maintenance personnel and can be stored in a specified directory.  Boot Read-Only Memory (BootROM) is a set of programs added to the ROM chip of a device. BootROM stores the device's most important input and output programs, system settings, startup self-check program, and system automatic startup program. The startup interface provides the information about the running program of the system, the running VRP version, and the loading path.  To limit users' access permissions to a device, the device manages users by level and establishes a mapping between user levels and command levels. After a user logs in to a device, the user can use only commands of the corresponding levels or lower. By default, the user command level ranges from 0 to 3, and the user level ranges from 0 to 15. The mapping between user levels and command levels is shown in the table.  Note: The login page, mode, and IP address may vary according to devices. For details, see the product documentation.  Use a console cable to connect the console port of a device with the COM port of a computer. You can then use PuTTY on the computer to log in to the device and perform local commissioning and maintenance. A console port is an RJ45 port that complies with the RS232 serial port standard. At present, the COM ports provided by most desktop computers can be connected to console ports. In most cases, a laptop does not provide a COM port. Therefore, a USB-to-RS232 conversion port is required if you use a laptop. The console port login function is enabled by default and does not need to be pre- configured.  Many terminal simulators can initiate console connections. PuTTY is one of the options for connecting to VRP. If PuTTY is used for access to VRP, you must set port parameters. The figure in the slide shows examples of port parameter settings. If the parameter values were ever changed, you need to restore the default values. After the settings are complete, click Open. The connection with VRP is then set up.  By default, the SSH login function is disabled on a device. You need to log in to the device through the console port and configure mandatory parameters for SSH login before using the SSH login function.  The CLI is an interface through which users can interact with a device. When the command prompt is displayed after a user logs in to a device, it means that the user has entered the CLI successfully.  Each command must contain a maximum of one command word and can contain multiple keywords and parameters. A parameter must be composed of a parameter name and a parameter value. The command word, keywords, parameter names, and parameter values in a command are separated by spaces.  The user view is the first view displayed after you log in to a device. Only query and tool commands are provided in the user view. In the user view, only the system view can be accessed. Global configuration commands are provided in the system view. If the system has a lower-level configuration view, the command for entering the lower-level configuration view is provided in the system view.  After you log in to the system, the user view is displayed first. This view provides only display commands and tool commands, such as ping and telnet. It does not provide any configuration commands. You can run the system-view command in the user view to enter the system view. The system view provides some simple global configuration commands. In a complex configuration scenario, for example, multiple parameters need to be configured for an Ethernet interface, you can run the interface GigabitEthernet X command (X indicates the number of the interface) to enter the GE interface view. Configurations performed in this view take effect only on the specified GE interface.  Note: "keyword" mentioned in this section means any character string except a parameter value string in a command. The meaning is different from that of "keyword" in the command format.  The command help information displayed in this slide is for reference only, which varies according to devices.  VRP uses the file system to manages files and directories on a device. To manage files and directories, you often need to run basic commands to query file or directory information. Such commonly used basic commands include pwd, dir [/all] [ filename | directory ], and more [ /binary ] filename [ offset ] [ all ]. ▫ The pwd command displays the current working directory. ▫ The dir [/all] [ filename | directory ] command displays information about files in the current directory. ▫ The more [/binary] filename [ offset ] [ all ] command displays the content of a text file. ▫ In this example, the dir command is run in the user view to display information about files in the flash memory. Common commands for operating directories include cd directory, mkdir directory, and rmdir directory. ▫ The cd directory command changes the current working directory. ▫ The mkdir directory command creates a directory. A directory name can contain 1 to 64 characters.  The rmdir directory command deletes a directory from the file system. A directory to be deleted must be empty; otherwise, it cannot be deleted using this command. The copy source-filename destination-filename command copies a file. If the target file already exists, the system displays a message indicating that the target file will be replaced. The target file name cannot be the same as the system startup file name. Otherwise, the system displays an error message. The move source-filename destination-filename command moves a file to another directory. The move command can be used to move files only within the same storage medium. The rename old-name new-name command renames a directory or file. The delete [/unreserved] [ /force ] { filename | devicename } command deletes a file. If the unreserved parameter is not specified, the deleted file is moved to the recycle bin. A file in the recycle bin can be restored using the undelete command. However, if the /unreserved parameter is specified, the file is permanently deleted and cannot be restored any more. If the /force parameter is not specified in the delete command, the system displays a message asking you whether to delete the file. However, if the /force parameter is specified, the system does not display the message. filename specifies the name of the file to be deleted, and devicename specifies the name of the storage medium.  The reset recycle-bin [ filename | devicename ] command permanently deletes all or a specified file in the recycle bin. filename specifies the name of the file to be permanently deleted, and devicename specifies the name of the storage medium.  Generally, more than one device is deployed on a network, and the administrator needs to manage all devices in a unified manner. The first task of device commissioning is to set a system name. A system name uniquely identifies a device. The default system name of an AR series router is Huawei, and that of an S series switch is HUAWEI. A system name takes effect immediately after being set. To ensure successful coordination with other devices, you need to correctly set the system clock. System clock = Coordinated Universal Time (UTC) ± Time difference between the UTC and the time of the local time zone. Generally, a device has default UTC and time difference settings. ▫ You can run the clock datetime command to set the system clock of the device. The date and time format is HH:MM:SS YYYY-MM-DD. If this command is run, the UTC is the system time minus the time difference. ▫ You can also change the UTC and the system time zone to change the system clock. ▪ The clock datetime utc HH:MM:SS YYYY-MM-DD changes the UTC. ▪ The clock timezone time-zone-name { add | minus } offset command configures the local time zone. The UTC is the local time plus or minus the offset. ▫ If a region adopts the daylight saving time, the system time is adjusted according to the user setting at the moment when the daylight saving time starts. VRP supports the daylight saving time function.  Each type of user interface has a corresponding user interface view. A user interface view is a command line view provided by the system for you to configure and manage all physical and logical interfaces working in asynchronous interaction mode, implementing unified management of different user interfaces. Before accessing a device, you need to set user interface parameters. The system supports console and VTY user interfaces. The console port is a serial port provided by the main control board of a device. A VTY is a virtual line port. A VTY connection is set up after a Telnet or SSH connection is established between a user terminal and a device, allowing the user to access the device in VTY mode. Generally, a maximum of 15 users can log in to a device through VTY at the same time. You can run the user-interface maximum-vty number command to set the maximum number of users that can concurrently access a device in VTY mode. If the maximum number of login users is set to 0, no user can log in to the device through Telnet or SSH. The display user-interface command displays information about a user interface. The maximum number of VTY interfaces may vary according to the device type and used VRP version.  To run the IP service on an interface, you must configure an IP address for the interface. Generally, an interface requires only one IP address. For the same interface, a newly configured primary IP address replaces the original primary IP address. You can run the ip address { mask | mask-length } command to configure an IP address for an interface. In this command, mask indicates a 32-bit subnet mask, for example, 255.255.255.0; mask-length indicates a mask length, for example, 24. Specify either of them when configuring an IP address. A loopback interface is a logical interface that can be used to simulate a network or an IP host. The loopback interface is stable and reliable, and can also be used as the management interface if multiple protocols are deployed. When configuring an IP address for a physical interface, check the physical status of the interface. By default, interfaces are up on Huawei routers and switches. If an interface is manually disabled, run the undo shutdown command to enable the interface after configuring an IP address for it.  The reset saved-configuration command deletes the configurations saved in a configuration file or the configuration file. After this command is run, if you do not run the startup saved-configuration command to specify the configuration file for the next startup or the save command to save current configurations, the device uses the default parameter settings during system initialization when it restarts. The display startup command displays the system software for the current and next startup, backup system software, configuration file, license file, and patch file, as well as voice file. The startup saved-configuration configuration-file command configures the configuration file for the next startup. The configuration-file parameter specifies the name of the configuration file for the next startup. The reboot command restarts a device. Before the device reboots, you are prompted to save configurations.  For some devices, after the authentication-mode password command is entered, the password setting page will be displayed automatically. You can then enter the password at the page that is displayed. For some devices, you need to run the set authentication-mode password password command to set a password.  To save configurations, run the save command. By default, configurations are saved in the vrpcfg.cfg file. You can also create a file for saving the configurations. In VRPv5, the configuration file is stored in the flash: directory by default.  The display startup command displays the system software for the current and next startup, backup system software, configuration file, license file, and patch file, as well as voice file. ▫ Startup system software indicates the VRP file used for the current startup. ▫ Next startup system software indicates the VRP file to be used for the next startup. ▫ Startup saved-configuration file indicates the configuration file used for the current system startup. ▫ Next startup saved-configuration file indicates the configuration file to be used for the next startup. ▫ When a device starts, it loads the configuration file from the storage medium and initializes the configuration file. If no configuration file exists in the storage medium, the device uses the default parameter settings for initialization. The startup saved-configuration [ configuration-file ] command sets the configuration file for the next startup, where the configuration-file parameter specifies the name of the configuration file. 1. Currently, most Huawei datacom products use VRPv5, and a few products such as NE series routers use VRPv8. 2. A Huawei device allows only one user to log in through the console interface at a time. Therefore, the console user ID is fixed at 0. 3. To specify a configuration file for next startup, run the startup saved-configuration [ configuration-file ] command. The value of configuration-file should contain both the file name and extension.