D-Link DGS-3620-52T CLI Guide - Page 433
clear fdb, show multicast_fdb
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xStack® DGS-3620 Series Layer 3 Managed Stackable Gigabit Switch CLI Reference Guide 33-8 clear fdb Description This command is used to clear the switch's forwarding database of all dynamically learned MAC addresses. Format clear fdb [vlan | port | all ] Parameters vlan - Specify the name of the VLAN on which the MAC address resides. - The maximum length is 32 characters. port - Specify the port number corresponding to the dynamically learned MAC address. - Specify the port number corresponding to the dynamically learned MAC address. all - Specify to clear all VLANs and ports. Restrictions Only Administrator, Operator and Power-User level users can issue this command. Example To clear all FDB dynamic entries: DGS-3620-28SC:admin#clear fdb all Command: clear fdb all Success. DGS-3620-28SC:admin# 33-9 show multicast_fdb Description This command is used to display the contents of the switch's multicast forwarding database. Format show multicast_fdb {[vlan | vlanid ] | mac_address } Parameters vlan - (Optional) Specify the name of the VLAN on which the MAC address resides. - The maximum length is 32 characters. vlanid - (Optional) Specifies the VLAN ID on which the MAC address resides. - Enter the VLAN ID used here. mac_address - (Optional) Specify a MAC address, for which FDB entries will be displayed. - Specify a MAC address, for which FDB entries will be displayed. 428