H3C SOHO IE4300, Справочник по командам

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With this command executed, the DHCPv6 snooping device backs up its snooping entries
immediately and runs auto backup. The snooping device, by default, waits 300 seconds after a
DHCPv6 snooping entry change to update the backup file. You can use the
ipv6 dhcp snooping
binding database update interval
command to change the waiting time. If no DHCPv6
snooping entry changes, the backup file is not updated.
As a best practice, back up the DHCPv6 snooping entries 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
snooping device malfunction.
When the file is on a remote device, follow these restrictions and guidelines to specify the URL:
•
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.
•
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 snooping device to back up DHCPv6 snooping entries to the file
database.dhcp .
<Sysname> system-view
[Sysname] ipv6 dhcp snooping binding database filename database.dhcp
# Configure the DHCPv6 snooping device to back up DHCPv6 snooping entries to the file
database.dhcp in the working directory of the TFTP server at 2::1.
<Sysname> system-view
[Sysname] ipv6 dhcp snooping binding database filename url tftp://[2::1]/database.dhcp
Related commands
ipv6 dhcp snooping binding database update interval
ipv6 dhcp snooping binding database update interval
Use
ipv6 dhcp snooping binding database update interval
to set the waiting time
for the DHCPv6 snooping device to update the backup file after a DHCPv6 snooping entry change.
Use
undo ipv6 dhcp snooping binding database update interval
to restore the
default.
Syntax
ipv6 dhcp snooping binding database update interval interval
undo ipv6 dhcp snooping binding database update interval
Default
The DHCPv6 snooping device waits 300 seconds to update the backup file after a DHCPv6
snooping entry change. If no DHCPv6 snooping entry changes, the backup file is not updated.
Views
System view
Predefined user roles
network-admin