Configuring FTP· 1

FTP overview·· 1

Introduction to FTP· 1

FTP operation· 1

Configuring the FTP client 2

Establishing an FTP connection· 2

Managing directories on an FTP server 3

Managing the files on an FTP server 4

Using another username to log in to an FTP server 5

Maintaining and debugging an FTP connection· 5

Terminating an FTP connection· 5

FTP client configuration example· 6

Configuring the FTP server 8

Configuring FTP server operating parameters 8

Configuring authentication and authorization on the FTP server 8

FTP server configuration example· 9

Displaying and maintaining FTP· 11

Configuring TFTP· 12

TFTP overview·· 12

Introduction to TFTP· 12

TFTP operation· 12

Configuring the TFTP client 13

Displaying and maintaining the TFTP client 14

TFTP client configuration example· 14

 

FTP overview

Introduction to FTP

The File Transfer Protocol (FTP) is an application layer protocol for sharing files between server and client over a TCP/IP network.

FTP uses TCP ports 20 and 21 for file transfer. Port 20 is used to transmit data, and port 21 to transmit control commands. For more information about basic FTP operation, see RFC 959.

FTP transfers files in two modes:

·           Binary mode—Transfers files as raw data, such as .app, .bin, and .btm files.

·           ASCII mode—Transfers files as text, such as .txt, .bat, and .cfg files.

FTP operation

FTP adopts the client/server model. A device can function either as the client or as the server (as shown in Figure 1).

·           When the device serves as the FTP client, a user can telnet to it from a PC, and execute the ftp command to establish a connection to the remote FTP server on the PC to upload/download files to/from the PC.

·           When the device serves as the FTP server, a user can FTP to the device from a PC that runs the FTP client and upload/download files to/from the device.

Figure 1 Network diagram

 

When the device serves as the FTP client, perform the following configuration:

Table 1 Configuration when the device serves as the FTP client

Device	Configuration	Remarks
Device (FTP client)	Use the ftp command to establish the connection to the remote FTP server	If the remote FTP server supports anonymous FTP, the device can log in to it directly; if not, the device must obtain the FTP username and password first to log in to the remote FTP server.
PC (FTP server)	Enable FTP server on the PC, and configure the username, password, user privilege level, and so on.	N/A

 

When the device serves as the FTP server, perform the following configuration:

Table 2 Configuration when the device serves as the FTP server

Device	Configuration	Remarks
Device (FTP server)	Enable the FTP server function	Disabled by default. You can use the display ftp-server command to view the FTP server configuration on the device.
	Configure authentication and authorization	Configure the username, password, authorized working directory for an FTP user. The device does not support anonymous FTP for security reasons. Therefore, you must use a valid username and password. By default, authenticated users can access the root directory of the device.
	Configure the FTP server operating parameters	Parameters such as the FTP connection timeout time
PC (FTP client)	Use the FTP client program to log in to the FTP server.	You can log in to the FTP server only after you input the correct FTP username and password.

 

CAUTION: ·       Make sure that the FTP server and the FTP client can reach each other before establishing the FTP connection. ·       When you use IE to log in to the device serving as the FTP server, some FTP functions is not available. This is because multiple connections are established during the login process but the device supports only one connection at a time.

 

Configuring the FTP client

 

NOTE: Only manage level users can use the ftp command to log in to an FTP server, enter FTP client view, and execute directory and file related commands. However, whether the commands can be executed successfully depends on the FTP server authorizations.

 

Establishing an FTP connection

Before you can access the FTP server, you must establish a connection from the FTP client to the FTP server. You can either use the ftp command to establish the connection directly or use the open command in FTP client view to establish the connection.

When using the ftp or ftp client source command, you can specify the source interface (such as a loopback) or source IP address. The primary IP address of the specified source interface or the specified source IP address is used as the source IP address of sent FTP packets.

The FTP client follows these rules to select the source IP address of packets sent to the FTP server:

·           If no source IP address is specified, the IP address of the output interface of the route to the server is used as the source IP address.

·           The source IP address specified with the ftp client source or ftp command is used.

If you first use the ftp client source command to specify a source IP address and then use the ftp command to specify another source IP address, the latter is used.

The source IP address specified with the ftp client source command applies to all FTP connections while the one specified with the ftp command applies to the current FTP connection only.

To establish an IPv4 FTP connection:

 

Step	Command	Remarks
1.     Enter system view.	system-view	N/A
2.     Specify the source IP address of sent FTP packets.	ftp client source { interface interface-type interface-number | ip source-ip-address }	Optional. By default, the source IP address is determined by the route from the FTP client to the FTP server.
3.     Return to user view.	quit	N/A
4.     Log in to the remote FTP server.	·       (Approach 1) Log in to the remote FTP server directly in user view: ftp [ server-address [ service-port ] [ vpn-instance vpn-instance-name ] [ source { interface interface-type interface-number | ip source-ip-address } ] ] ·       (Approach 2) Log in to the remote FTP server indirectly in FTP client view: a.   ftp b.   open server-address [ service-port ]	Use either approach. The ftp command is available in user view; and the open command is available in FTP client view.

 

NOTE: ·       If no primary IP address is configured on the specified source interface, no FTP connection can be established. ·       If you use the ftp client source command to configure a source interface and then use it to configure a source IP address, the source IP address overwrites the source interface, and vice versa.

 

To establish an IPv6 FTP connection:

 

Task	Command	Remarks
Log in to the remote FTP server directly in user view.	ftp ipv6 [ server-address [ service-port ] [ vpn-instance vpn-instance-name ] [ source ipv6 source-ipv6-address ] [ -i interface-type interface-number ] ]	The ftp ipv6 command is available in user view; and the open ipv6 command is available in FTP client view.
Log in to the remote FTP server indirectly in FTP client view.	ftp ipv6 open ipv6 server-address [ service-port ] [ -i interface-type interface-number ]

 

Managing directories on an FTP server

After a router serving as the FTP client has established a connection with the FTP server, you can create or delete folders under the authorized directory of the FTP server. For more information about establishing an FTP connection, see “Establishing an FTP connection.”

To manage the directories on an FTP server:

 

Task	Command
Display detailed information about a directory or file on the remote FTP server.	dir [ remotefile [ localfile ] ]
Query a directory or file on the remote FTP server.	ls [ remotefile [ localfile ] ]
Change the working directory of the remote FTP server.	cd { directory | .. | / }
Return to the upper level directory of the remote FTP server.	cdup
Display the working directory that is being accessed.	pwd
Create a directory on the remote FTP server.	mkdir directory
Remove the specified working directory on the remote FTP server.	rmdir directory

 

Managing the files on an FTP server

After the device serving as the FTP client has established a connection with an FTP server, you can upload a file to or download a file from the FTP server under the authorized directory of the FTP server by following these steps. For more information about establishing an FTP connection, see “Establishing an FTP connection.”

1.      Use the dir or ls command to display the directory and the location of the file on the FTP server.

2.      Delete useless files for effective use of the storage space.

3.      Set the file transfer mode. FTP transmits files in two modes: ASCII and binary. ASCII mode transfers files as text. Binary mode transfers files as raw data.

4.      Use the lcd command to display the local working directory of the FTP client. You can upload the file under this directory, or save the downloaded file under this directory.

5.      Upload or download the file.

To manage the files on an FTP server:

 

Task	Command	Remarks
Display detailed information about a directory or file on the remote FTP server.	dir [ remotefile [ localfile ] ]	The ls command displays the name of a directory or file only, while the dir command displays detailed information such as the file size and creation time.
Query a directory or file on the remote FTP server.	ls [ remotefile [ localfile ] ]	The ls command displays the name of a directory or file only, while the dir command displays detailed information such as the file size and creation time.
Delete the specified file on the remote FTP server permanently.	delete remotefile	N/A
Set the file transfer mode to ASCII.	ascii	ASCII by default.
Set the file transfer mode to binary.	binary	ASCII by default.
Set the data transmission mode to passive.	passive	Passive by default.
Display the local working directory of the FTP client.	lcd	N/A
Upload a file to the FTP server.	put localfile [ remotefile ]	N/A
Download a file from the FTP server.	get remotefile [ localfile ]	N/A

 

Using another username to log in to an FTP server

After the device serving as the FTP client has established a connection with the FTP server, you can use another username to log in to the FTP server. For more information about establishing an FTP connection, see “Establishing an FTP connection.”

This feature allows you to switch to different user levels without affecting the current FTP connection; if you input an incorrect username or password, the current connection will be terminated, and you must log in again to access the FTP server.

To use another username to log in to the FTP server:

 

Task	Command
Use another username to re-log in after successfully logging in to the FTP server.	user username [ password ]

 

Maintaining and debugging an FTP connection

After a device serving as the FTP client has established a connection with the FTP server, you can perform the following operations to locate and diagnose problems encountered in an FTP connection. For more information about establishing an FTP connection, see “Establishing an FTP connection.”

 

Task	Command	Remarks
Display the help information of FTP-related commands supported by the remote FTP server.	remotehelp [ protocol-command ]	N/A
Enable information display in a detailed manner.	verbose	Enabled by default.
Enable FTP related debugging when the device acts as the FTP client.	debugging	Disabled by default.

 

Terminating an FTP connection

After the device serving as the FTP client has established a connection with the FTP server, you can use any of the following commands to terminate an FTP connection. For more information about establishing an FTP connection, see “Establishing an FTP connection.”

 

Task	Command	Remarks
Terminate the connection to the FTP server without exiting FTP client view.	disconnect	Equal to the close command.
Terminate the connection to the FTP server without exiting FTP client view.	close	Equal to the disconnect command.
Terminate the connection to the FTP server and return to user view.	bye	Equal to the quit command in FTP client view.
Terminate the connection to the FTP server and return to user view.	quit	Available in FTP client view, equal to the bye command.

 

FTP client configuration example

Network requirements

As shown in 错误！未找到引用源。, the device acts as an FTP client and the PC acts as the FTP server. The device and PC can reach each other. An account with the username abc and password abc is already configured on the FTP server.

Log in to the FTP server from the FTP client, download the system software image file newest.bin from the PC to the device, and upload the configuration file config.cfg from the device to the PC for backup.

Figure 2 Network diagram

 

Configuration procedure

 

CAUTION: If the memory space available of the device is insufficient, use the fixdisk command to clear the memory or use the delete /unreserved file-url command to delete the files not in use and then perform the following operations.

 

# Log in to the server through FTP.

<Sysname> dir

Directory of flash:/

 

　　 0　　 drw-　　　　　　　　 -　 Dec 07 2005 10:00:57　　 filename

　　 1　　 drw-　　　　　　　　 -　 Jan 02 2006 14:27:51　　 logfile

　　 2　　 -rw-　　　　　 1216　 Jan 02 2006 14:28:59　　 config.cfg

　　 3　　 -rw-　　　　　 1216　 Jan 02 2006 16:27:26　　 backup.cfg

 

2540 KB total (2511 KB free)

<Sysname> delete /unreserved flash:/backup.cfg

# Log in to the server through FTP to download boot files.

<Sysname> ftp 10.1.1.1

Trying 10.1.1.1 ...

Connected to 10.1.1.1.

220 WFTPD 2.0 service (by Texas Imperial Software) ready for new user

User(10.1.1.1:(none)):abc

331 Give me your password, please

Password:

230 Logged in successfully

# Set the file transfer mode to binary to transmit boot file.

[ftp] binary

200 Type set to I.

# Download the boot file newest.bin from the PC to the device.

·           Download the boot file newest.bin to the root directory of the storage medium on the active MPU.

[ftp] get newest.bin

·           Download the boot file newest.bin from the PC to the root directory of the storage medium on the standby MPU (in slot 1).

[ftp] get newest.bin slot1#flash:/newest.bin

# Upload the configuration file config.cfg of the device to the server for backup.

[ftp] ascii

[ftp] put config.cfg back-config.cfg

227 Entering Passive Mode (10,1,1,1,4,2).

125 ASCII mode data connection already open, transfer starting for /config.cfg.

226 Transfer complete.

FTP: 3494 byte(s) sent in 5.646 second(s), 618.00 byte(s)/sec.

[ftp] bye

# Specify newest.bin as the main boot file for next startup.

·           Specify newest.bin as the main boot file for next startup for the active MPU.

<Sysname> boot-loader file newest.bin slot 0 main

　 This command will set the boot file of the specified board. Continue? [Y/N]:y

　 The specified file will be used as the main boot file at the next reboot on slot 0!

·           Specify newest.bin as the main boot file for next startup for the standby MPU (in slot 1).

<Sysname> boot-loader file slot1#flash:/newest.bin slot 1 main

　 This command will set the boot file of the specified board. Continue? [Y/N]:y

　 The specified file will be used as the main boot file at the next reboot on slot 1!

# Reboot the device, and the boot file is updated at the system reboot.

<Sysname> reboot

 

CAUTION: The boot file used for next startup must be saved on the first partition under the root directory of the storage medium. You can copy or move a file to the root directory of the storage medium. For more information about the boot-loader command, see Fundamentals Command Reference.

 

Configuring the FTP server

Configuring FTP server operating parameters

The FTP server uses one of the two modes to update a file when you upload the file (use the put command) to the FTP server:

·           In fast mode, the FTP server starts writing data to the storage medium after a file is transferred to the memory. This prevents the existing file on the FTP server from being corrupted in the event that anomaly, power failure for example, occurs during a file transfer.

·           In normal mode, the FTP server writes data to the storage medium while receiving data. This means that any anomaly, power failure for example, during file transfer might result in file corruption on the FTP server. This mode, however, consumes less memory space than the fast mode.

To configure the FTP server:

 

Step	Command	Remarks
1.     Enter system view.	system-view	N/A
2.     Enable the FTP server.	ftp server enable	Disabled by default.
3.     Use an ACL to control FTP clients’ access to the router.	ftp server acl acl-number	Optional. By default, no ACL is used to control FTP clients’ access to the router.
4.     Configure the idle-timeout timer.	ftp timeout minutes	Optional. 30 minutes by default. Within the idle-timeout time, if there is no information interaction between the FTP server and client, the connection between them is terminated.
5.     Set the file update mode for the FTP server.	ftp update { fast | normal }	Optional. Normal update is used by default.
6.     Quit to user view.	quit	N/A
7.     Manually release the FTP connection established with the specified username.	free ftp user username	Optional. Available in user view.

 

Configuring authentication and authorization on the FTP server

To allow an FTP user to access certain directories on the FTP server, you must create an account for the user, authorize the user to access the directories, and configure a password for the user.

Make the following configuration to perform authentication and authorization on a local FTP user. To authenticate remote FTP users, you must configure authentication, authorization and accounting (AAA). For detailed configuration about AAA, see Security Command Reference.

To configure authentication and authorization for FTP server:

 

Step	Command	Remarks
1.     Enter system view.	system-view	N/A
2.     Create a local user and enter its view.	local-user user-name	No local user exists by default, and the system does not support FTP anonymous user access.
3.     Assign a password to the user.	password { simple | cipher } password	N/A
4.     Assign the FTP service to the user.	service-type ftp	By default, the system does not support anonymous FTP access, and does not assign any service. If the FTP service is assigned, the root directory of the router is used by default.
5.     Configure user properties.	authorization-attribute { acl acl-number | callback-number callback-number | idle-cut minute | level level | user-profile profile-name | vlan vlan-id | work-directory directory-name } *	Optional. By default, the FTP/SFTP users can access the root directory of the router, and the user level is 0. You can change the default configuration by using this command.

 

NOTE: ·       For more information about the local-user, password, service-type ftp, and authorization-attribute commands, see Security Command Reference. ·       When the device serves as the FTP server, to perform write operations (upload, delete, create, and delete for example) on the device’s file system, the FTP login users must be level 3 users; to perform other operations, for example, read operation, users of any level from 0 to 3 are allowed.

 

FTP server configuration example

Network requirements

As shown in 错误！未找到引用源。, the device acts as an FTP server, and the PC acts as the FTP client. The device and PC are reachable to each other.

Create a local user account with the username abc and password abc and enable FTP server on the device. Use the user account to log in to the FTP server from the FTP client, upload the file newest.bin from the FTP client to the FTP server, and download the configuration file config.cfg from the FTP server to the FTP client for backup.

Figure 3 Network diagram

 

Configuration procedure

1.      Configure the device (FTP server)

# Create an FTP user account abc, set its password to abc and the user privilege level to level 3 (the manage level). Allow user abc to access the root directory of the flash, and specify abc to use FTP.

<Sysname> system-view

[Sysname] local-user abc

[Sysname-luser-abc] password simple abc

[Sysname-luser-abc] authorization-attribute level 3

[Sysname-luser-abc] authorization-attribute work-directory flash:/

To access the root directory of the flash on the standby MPU (in slot 1), replace flash:/ with slot1#flash:/.

[Sysname-luser-abc] service-type ftp

[Sysname-luser-abc] quit

# Enable FTP.

[Sysname] ftp server enable

[Sysname] quit

# Check files on your device. Remove those redundant to ensure adequate space for the boot file to be uploaded.

<Sysname> dir

Directory of flash:/

 

　　 0　　 drw-　　　　　　　　 -　 Dec 07 2005 10:00:57　　 filename

　　 1　　 drw-　　　　　　　　 -　 Jan 02 2006 14:27:51　　 logfile

　　 2　　 -rw-　　　　　 1216　 Jan 02 2006 14:28:59　　 config.cfg

　　 3　　 -rw-　　　　　 1216　 Jan 02 2006 16:27:26　　 back.cfg

 

2540 KB total (2511 KB free)

<Sysname> delete /unreserved flash:/back.cfg

2.      Configure the PC (FTP client)

# Log in to the FTP server through FTP.

c:\> ftp 1.1.1.1

Connected to 1.1.1.1.

220 FTP service ready.

User(1.1.1.1:(none)):abc

331 Password required for abc.

Password:

230 User logged in.

# Download the configuration file config.cfg of the device to the PC for backup.

ftp> get config.cfg back-config.cfg

# Upload the configuration file newest.bin to the device.

ftp> put newest.bin

ftp> bye

 

NOTE: ·       You can take the same steps to upgrade configuration file with FTP. When upgrading the configuration file with FTP, put the new file under the root directory of the storage medium (For a router that has been partitioned, the configuration file must be saved on the first partition.). ·       After you finish upgrading the Bootware program through FTP, you must execute the bootrom update command to upgrade the Bootware.

 

# You can use the boot-loader command to specify the device to download the main boot file at the next startup (suppose the device supports main/backup boot files). The boot file is upgraded at the system reboot.

<Sysname> boot-loader file bbb.app slot 0 main

<Sysname> reboot

 

CAUTION: The boot file used for next startup must be saved on the first partition under the root directory of the storage medium. You can copy or move a file to the root directory of the storage medium. For more information about the boot-loader command, see Fundamentals Command Reference.

 

Displaying and maintaining FTP

 

Task	Command	Remarks
Display the source IP address configuration of the FTP client.	display ftp client configuration [ | { begin | exclude | include } regular-expression ]	Available in any view
Display the configuration of the FTP server.	display ftp-server [ | { begin | exclude | include } regular-expression ]	Available in any view
Display detailed information about logged-in FTP users.	display ftp-user [ | { begin | exclude | include } regular-expression ]	Available in any view

 

TFTP overview

Introduction to TFTP

The Trivial File Transfer Protocol (TFTP) provides functions similar to those provided by FTP, but it is less complex than FTP in interactive access interface and authentication. Therefore, it is more suitable in environments where complex interaction is not needed between client and server.

TFTP uses the UDP port 69 for data transmission. For information about basic TFTP operation, see RFC 1350.

In TFTP, file transfer is initiated by the client.

·           In a normal file downloading process, the client sends a read request to the TFTP server, receives data from the server, and then sends the acknowledgement to the server.

·           In a normal file uploading process, the client sends a write request to the TFTP server, sends data to the server, and receives the acknowledgement from the server.

TFTP transfers files in two modes:

·           Binary mode—Transfers files as raw data, such as .app, .bin, and .btm files.

·           ASCII mode—Transfers files as text, such as .txt, .bat, and .cfg files.

TFTP operation

 

NOTE: Only the TFTP client service is available with your router.

 

Figure 4 Network diagram

 

Before using TFTP, the administrator needs to configure IP addresses for the TFTP client and server, and make sure that there is a reachable route between the TFTP client and server.

When the device serves as the TFTP client, perform the following configuration:

Table 3 Configuration when the device serves as the TFTP client

Device	Configuration	Remarks
Device (TFTP client)	·       Configure the IP address and routing function, and make sure that the route between the device and the TFTP server is available. ·       Use the tftp command to establish a connection to the remote TFTP server to upload/download files to/from the TFTP server.	TFTP is applicable to simple interaction between the client and server. Make sure the TFTP client and TFTP server can reach each other.
PC (TFTP server)	Enable TFTP server on the PC, and configure the TFTP working directory.	N/A

 

Configuring the TFTP client

When a router acts as a TFTP client, you can upload a file on the router to a TFTP server and download a file from the TFTP server to the local router. You can use either of the following ways to download a file:

·           Normal download—The router writes the obtained file to the storage medium directly. If you download a remote file using a filename destination-filename that exists in the target directory, the device deletes the original file and saves the new one. If file download fails due to network disconnection or other reasons, the original file will never recover because it has been deleted.

·           Secure download—The router saves the obtained file to its memory and does not write it to the storage medium until the whole file is obtained. If you download a remote file using a filename destination-filename that exists in the target directory, the original file is not overwritten. If file download fails due to network disconnection or other reasons, the original file still exists. This mode is more secure but consumes more memory.

H3C recommends that you use the secure mode or, if you use the normal mode, specify a filename inexistent in the target directory.

When using the tftp client source or tftp command, you can specify the source interface (such as a loopback) or source IP address. The primary IP address of the specified source interface or the specified source IP address is used as the source IP address of sent TFTP packets.

The TFTP client follows these rules to select the source IP address of packets sent to the TFTP server:

·           If no source IP address is specified, the IP address of the output interface of the route to the server is used as the source IP address.

·           The source IP address specified with the tftp client source or tftp command is used.

·           If you first use the tftp client source command to specify a source IP address and then use the tftp command to specify another source IP address, the latter is used.

·           The source IP address specified with the tftp client source command applies to all TFTP connections while the one specified with the tftp command applies to the current TFTP connection only.

To configure the TFTP client:

 

Step	Command	Remarks
1.     Enter system view.	system-view	N/A
2.     Use an ACL to control the router’s access to TFTP servers.	tftp-server [ ipv6 ] acl acl-number	Optional. By default, no ACL is used to control the device’s access to TFTP servers.
3.     Specify the source IP address of sent TFTP packets.	tftp client source { interface interface-type interface-number | ip source-ip-address }	Optional. By default, the source IP address is determined by the route from the TFTP client to the TFTP server.
4.     Return to user view.	quit	N/A
5.     Download or upload a file in an IPv4 network.	tftp server-address { get | put | sget } source-filename [ destination-filename ] [ vpn-instance vpn-instance-name ] [ source { interface interface-type interface-number | ip source-ip-address } ]	Optional.
6.     Download or upload a file in an IPv6 network.	tftp ipv6 tftp-ipv6-server [ -i interface-type interface-number ] { get | put } source-filename [ destination-filename ] [ vpn-instance vpn-instance-name ]	Optional.

 

NOTE: ·       If no primary IP address is configured on the source interface, no TFTP connection can be established. ·       If you use the ftp client source command to first configure the source interface and then the source IP address of the packets of the TFTP client, the new source IP address overwrites the current one, and vice versa.

 

Displaying and maintaining the TFTP client

 

Task	Command	Remarks
Display the source IP address configuration of the TFTP client.	display tftp client configuration [ | { begin | exclude | include } regular-expression ]	Available in any view

 

TFTP client configuration example

Network requirements

As shown in 错误！未找到引用源。, the device and PC can reach each other.

Configure the PC as the TFTP server, and use TFTP to download the system software image file newest.bin from the PC to the device and upload the configuration file config.cfg from the device to the PC for backup.

Figure 5 Network diagram

 

Configuration procedure

1.      Configure the PC (TFTP server):

a.    On the PC, enable the TFTP server. (Details not shown)

b.    Configure a TFTP working directory. (Details not shown)

2.      Configure the device (TFTP client):

 

CAUTION: If the memory available of the device is insufficient, use the fixdisk command to clear the memory or use the delete /unreserved file-url command to delete the files not in use and then perform the following operations.

 

# Download application file newest.bin from the PC to the device.

¡  Download application file newest.bin from PC to the root directory of the storage medium on the active MPU.

<Sysname> tftp 1.2.1.1 get newest.bin

¡  Download application file newest.bin from the PC to the root directory of the storage medium on the standby MPU (in slot 1).

<Sysname> tftp 1.2.1.1 get newest.bin slot1#flash:/newest.bin

# Upload a configuration file config.cfg to the TFTP server.

<Sysname> tftp 1.2.1.1 put config.cfg configback.cfg

# Specify newest.bin as the main boot file for next startup.

¡  Specify newest.bin as the main boot file for next startup for the active MPU.

<Sysname> boot-loader file newest.bin slot 0 main

　 This command will set the boot file of the specified board. Continue? [Y/N]:y

　 The specified file will be used as the main boot file at the next reboot on slot 0!

¡  Specify newest.bin as the main boot file for next startup for the standby MPU (in slot 1).

<Sysname> boot-loader file slot1#flash:/newest.bin slot 1 main

　 This command will set the boot file of the specified board. Continue? [Y/N]:y

　 The specified file will be used as the main boot file at the next reboot on slot 1!

# Reboot the device and the software is upgraded.

<Sysname> reboot

 

CAUTION: The boot file used for next startup must be saved on the first partition under the root directory of the storage medium. You can copy or move a file to the root directory of the storage medium. For more information about the boot-loader command, see Fundamentals Command Reference.