Configuration Guide DHCPv6 Snooping Configuration
Writing the Bound Database to Flash File Periodically
This function can guarantee the normal communication of the bound user after abnormal reset. By
default, this function is disabled.
To write the bound database to Flash file, run the following commands in the privileged EXEC mode.
Ruijie# configure terminal
Enter the global configuration mode.
Ruijie(config)# ipv6 dhcp snooping database
write-delay seconds
Write the bound database to Flash at the interval
of x seconds.
Ruijie(config)# show ipv6 dhcp snooping
Show DHCPv6 Snooping configuration.
To restore the setting to the default value, run the no ipv6 dhcp snooping database write-delay
command in the global configuration mode.
Configuration example:
# Writer the bound database to Flash file at the interval of 10 minutes (or 600 seconds).
Ruijie# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Ruijie(config)# ipv6 dhcp snooping database write-delay 600
Writing the Bound Database to Flash File in Real Time
Administrator can manually write the bound database to Flash file before rebooting the device to
guarantee the normal operation of the bound user in case of abnormal reboot.
To write the bound database to Flash file, run the following commands in the privileged EXEC mode.
Ruijie# configure terminal
Enter the global configuration mode.
Ruijie(config)# ipv6 dhcp snooping database
write-to-flash
Write the bound database to Flash file in real time.
Ruijie(config)# show ipv6 dhcp snooping
Show DHCPv6 Snooping configuration.
Configuration example:
# Write the bound database to Flash file in real time.
Ruijie# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Ruijie(config)# ipv6 dhcp snooping database write-to-flash