Config Fdb Aging_Time - D-Link DGS-1100-16/ME Reference Manual

Restrictions
Example usage:
To configure multicast MAC forwarding:

config fdb aging_time

Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To set the fdb aging time:
DGS-1100/ME Metro Ethernet Managed Switch CLI Reference Guide
forwarding table.
<portlist> − A port or range of ports to be configured.
Only administrator-level users can issue this command.
DGS-1100-24P/ME:admin#config multicast_fdb name VLAN0001 ff-ff-ff-
ff-ff-ff add 1-8
Command : config multicast_fdb name VLAN0001 ff-ff-ff-ff-ff-ff add 1-8
Success.
DGS-1100-24P/ME:admin#
To set the aging time of the forwarding database.
config fdb aging_time <sec 10-10000000>
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.
The aging time can be from 10 to 10000000 seconds with a default
value of 300 seconds. 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forwarding table entries that are out-of-date or no longer exist.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 10-10000000> − The aging time for the MAC address
forwarding database value, in seconds.
Only administrator-level users can issue this command.
DGS-1100-24P/ME:admin#config fdb aging_time 300
Command: config fdb aging_time 300
Success.
DGS-1100-24P/ME:admin#
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