D-Link 3324SRi Reference Manual - Page 101

config multicast_fdb, config fdb aging_time, config fdb aging_time <sec 10-10&gt

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xStack Gigabit Layer 3 Switch Command Line Interface Manual config multicast_fdb Restrictions − 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. 1:32:4 specifies all of the ports between switch 1, port 3 and switch 2, port 4 − in numerical order. Only administrator-level users can issue this command. Example usage: To add multicast MAC forwarding: DGS-3324SRi: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. DGS-3324SRi:4# config fdb aging_time Purpose Syntax Description Parameters Restrictions Used to set the aging time of the forwarding database. config fdb aging_time 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 A very long aging time can result in dynamic forwarding table entries that are out-of-date or no longer exist.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 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. − The aging time for the MAC address forwarding database value. The value in seconds may be between 10 and 1000000 seconds. The default is 300 seconds. Only administrator-level users can issue this command. Example usage: To set the fdb aging time: 93

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xStack Gigabit Layer 3 Switch Command Line Interface Manual
config multicast_fdb
±
<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:
DGS-3324SRi: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.
DGS-3324SRi: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
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.
Parameters
<sec
10-1000000>
−
The aging time for the MAC address
forwarding database value. The value in seconds may be between
10 and 1000000 seconds. The default is 300 seconds.
Restrictions
Only administrator-level users can issue this command.
Example usage:
To set the fdb aging time:
93