Panasonic ZEQUO 6400, Operating Instructions Manual

Page: 358 / 1058

30. FDB Commands
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30.FDB Commands
Forwarding Database (FDB) is a mapping table between the MAC
addresses of network devices and the destination VLANs or ports. A
Switching Hub accesses FDB using the MAC address information of a
receive packet and determines the destination VLAN or port.
FDB is usually created automatically from receive packet information. However, it can
also be registered manually by the administrator. FDB is created not only for unicast,
which sends to one destination, but also for multicast, which sends to multiple
destinations. You can also configure which ports join or not join a multicast group.

Multicast filtering function
In multicast where data is simultaneously sent to multiple destinations, multicast data
may be sent even to unnecessary ports if a multicast group does not exist. When the
multicast filtering function is enabled, you can configure not to send data to any port
other than router ports even if a multicast group is not created.
create fdb <vlan_name 32> <macaddr> [port <port> | drop]
create fdb vlanid <vidlist> <macaddr> [port <port> | drop]
create multicast_fdb <vlan_name 32> <macaddr>
config multicast_fdb <vlan_name 32> <macaddr> [add | delete] <portlist>
config fdb aging_time <sec 10-1000000>
config multicast vlan_filtering_mode [vlanid <vidlist> | vlan <vlan_name 32> | all]
[forward_all_groups | forward_unregistered_groups | filter_unregistered_groups]
delete fdb <vlan_name 32> <macaddr>
clear fdb [vlan <vlan_name 32> | port <port> | all]
show multicast_fdb {[vlan <vlan_name 32> | vlanid <vidlist>] | mac_address <macaddr>}
show fdb {[port <port> | vlan <vlan_name 32> | vlanid <vidlist> | mac_address <macaddr> | static
| aging_time | security]}
show multicast vlan_filtering_mode {[vlanid <vidlist> | vlan <vlan_name 32>]}