D-Link xStack DGS-3420 Series Reference Manual page 530

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
DGS-3420-28SC:admin#config address_binding dhcp_snoop_entry file save_dhcp.cfg
autosave enable
Command: config address_binding dhcp_snoop_entry filename save_dhcp.cfg autosave
enable
Success.
DGS-3420-28SC:admin#
44-27 enable address_binding roaming
Description
This command is used to enable IMPB roaming. When IMPB roaming is enabled, the dynamic
authenticated MAC address which learned through DHCP/ND snooping on specific port can change to
another port if it detects (1) a new DHCP process belong to same IP and MAC address or (2) a new
DAD process belong to same IP and MAC.
Format
enable address_binding roaming
Parameters
None.
Restrictions
Only Administrator, Operator and Power-User level users can issue this command.
Example
To enable IMPB roaming:
DGS-3420-28SC:admin#enable address_binding roaming
Command: enable address_binding roaming
Success.
DGS-3420-28SC:admin#
44-28 disable address_binding roaming
Description
This command is used to disable IMPB roaming. When disabled, all dynamic entries learned through
DHCP/ND snooping on a specific port will not have chance to change to the learning port, even if the
switch detects that the client already changed ports. In other words, the MAC address, learned at port
1, will not have chance to change to port 2 until the IMPB entry aged out.
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