Config Fdb Aging_Time; Delete Fdb - D-Link DGS-1210/ME Series Reference Manual

To create a unicast MAC FDB entry:
DGS-1210-28MP/ME:5# create fdb default 00-00-00-00-01-02 port 2
Command: create fdb default 00-00-00-00-01-02 port 2
Success
DGS-1210-28MP/ME:5#

config fdb aging_time

Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To set the fdb aging time:
DGS-1210-28MP/ME:5# config fdb aging_time 300
Command: config fdb aging_time 300
Success.
DGS-1210-28MP/ME:5#

delete fdb

Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To delete a permanent FDB entry:
DGS-1210/ME Metro Ethernet Switch CLI Reference Guide
To set the aging time of the forwarding database.
config fdb aging_time <sec 10-1000000>
The config fdb aging_time command sets the aging time of the
forwarding database. The aging time affects the learning process of
the Switch. Dynamic forwarding table entries, which are made up of
the source MAC addresses and their associated port numbers, are
deleted from the table if they are not accessed within the aging time.
A very long aging time can result in dynamic forwarding table entries
that are out-of-date or no longer exist. This may cause incorrect
packet forwarding decisions by the Switch. If the aging time is too
short however, many entries may be aged out too soon. This will
result in a high percentage of received packets whose source
addresses cannot be found in the forwarding table, in which case the
Switch will broadcast the packet to all ports, negating many of the
benefits of having a Switch.
<sec 10-1000000> − The aging time for the MAC address
forwarding database value, in seconds.
Only Administrator or operator-level users can issue this command.
To delete an entry in the Switch's forwarding database.
delete fdb <vlan_name 32> <macaddr>
The delete fdb command deletes an entry in the Switch's MAC
address forwarding database.
<vlan_name 32> − The name of the VLAN on which the MAC
address resides.
<macaddr> − The MAC address to be removed from the forwarding
table.
Only Administrator or operator-level users can issue this command.
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