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Configure Storing of DHCPv6 snooping Bound Entries

The DHCPv6 snooping function supports the auto or manual storing to the device FLASH. If the device restarts, the stored bound entries can be restored, avoiding affecting the communication because the bound entries are lost.

Configuration Condition

Before configuring the storing of the DHCPv6 snooping bound entries, first complete the following task:

  • Enable the DHCPv6 snooping function

Configure the Storing of DHCPv6 snooping Bound Entries

The system periodically refreshes the DHCPv6 snooping bound entries, detecting whether the bound entries are updated. If yes, we need to store the updated entries to the specified path after the storing delay arrives. Meanwhile, you also can store the bound entries to the device FLASH immediately.

Table 8-10 Configure the storing of the DHCPv6 snooping bound entries

Step

Command

Description

Enter global configuration mode

configure terminal

-

Configure the refresh interval of the DHCPv6 snooping bound entries

ipv6 dhcp snooping database save pool seconds

Optional

By default, the refresh interval of the DHCPv6 snooping bound entries is 30s.

Configure the storing delay of the DHCPv6 snooping bound entries

ipv6 dhcp snooping database save interval seconds

Optional

By default, the storing delay of the DHCPv6 snooping bound entries is 1800s.

Configure storing the bound entries immediately

ipv6 dhcp snooping database save now

Optional

By default, the storing delay of the bound entry is 1800s.

Configure storing the DHCPv6 snooping bound entries to the specified file

ipv6 dhcp snooping database save filename string

Mandatory

By default, the storing file name is /flash/dhcpv6sp_binding.db.