DXS-3326GSR Stackable Gigabit Layer 3 Switch
config multicast_fdb
Syntax
config multicast_fdb <vlan_name 32> <macaddr> [add |
delete] <portlist>
Description
This command configures the multicast MAC address forwarding
table.
Parameters
<vlan_name 32>
−
The name of the VLAN on which the MAC
address resides.
<macaddr>
−
The MAC address that will be added to the
multicast forwarding table.
[add | delete]
−
Add will add ports to the forwarding table. Delete
will remove ports from the multicast forwarding table.
<portlist>
−
Specifies a range of ports to be configured.
The port list is specified by listing the lowest switch number
and the beginning port number on that switch, separated by
a colon. Then the highest switch number, and the highest
port number of the range (also separated by a colon) are
specified. The beginning and end of the port list range are
separated by a dash. For example, 1:3 specifies switch
number 1, port 3. 2:4 specifies switch number 2, port 4. 1:3-
2:4 specifies all of the ports between switch 1, port 3 and
switch 2, port 4
−
in numerical order.
Restrictions Only
administrator-level users can issue this command.
Example usage:
To add multicast MAC forwarding:
DXS-3326GSR:4#config multicast_fdb default 01-00-00-00-00-01 add 1:1-1:5
Command: config multicast_fdb default 01-00-00-00-00-01 add 1:1-1:5
Success.
DXS-3326GSR:4#
config fdb aging_time
Purpose
Used to set the aging time of the forwarding database.
Syntax
config fdb aging_time <sec 10-1000000>
Description
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 1000000 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dynamic forwarding table entries that are out-of-date or no longer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
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