Ipv6 Dhcp Server Database Update Interval - HPE FlexFabric 5950 Series Command Reference Manual

Usage guidelines
The command automatically creates the file if you specify a nonexistent file.
With this command executed, the DHCPv6 server backs up its bindings immediately and runs auto
backup. The server, by default, waits 300 seconds after a binding change to update the backup file.
You can use the ipv6 dhcp server database update interval command to change the waiting time.
If no DHCPv6 binding changes, the backup file is not updated.
As a best practice, back up the bindings to a remote file. If you use the local storage medium, the
frequent erasing and writing might damage the medium and then cause the DHCPv6 server to
malfunction.
When the backup file is on a remote device, follow these restrictions and guidelines to specify the
URL, username, and password:
•
If the file is on an FTP server, enter URL in the format of ftp://server address:port/file path,
where the port number is optional.
•
If the file is on a TFTP server, enter URL in the format of tftp://server address:port/file path,
where the port number is optional.
•
The username and password must be the same as those configured on the FTP server. If the
server authenticates only the username, the password can be omitted.
•
If the IP address of the server is an IPv6 address, enclose the address in a pair of brackets, for
example, ftp://[1::1]/database.dhcp.
•
You can also specify the DNS domain name for the server address field, for example,
ftp://company/database.dhcp.
Examples
# Configure the DHCPv6 server to back up its bindings to the file database.dhcp
<Sysname> system-view
[Sysname] ipv6 dhcp server database filename database.dhcp
# Configure the DHCPv6 server to back up its bindings to the file database.dhcp in the working
directory of the FTP server at 10::1.
<Sysname> system-view
[Sysname] ipv6 dhcp server database filename url ftp://[10::1]/database.dhcp username 1
password simple 1
Related commands

ipv6 dhcp server database update interval

ipv6 dhcp server database update now
ipv6 dhcp server database update stop
ipv6 dhcp server database update interval
Use ipv6 dhcp server database update interval to set the waiting time for the DHCPv6 server to
update the backup file after a DHCPv6 binding change.
Use undo ipv6 dhcp server database update interval to restore the default.
Syntax
ipv6 dhcp server database update interval interval
undo ipv6 dhcp server database update interval
Default
The DHCPv6 server waits 300 seconds to update the backup file after a DHCPv6 binding change. If
no DHCPv6 binding changes, the backup file is not updated.
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