config fdb destination_hit ports
Purpose To set specified ports as destination hit ports for the forwarding database table.
Syntax config fdb destination_hit ports [<portlist> | all] [enable | disable]
Description This command will allow the user to define certain ports on the Switch as destination hit ports.These
destination hit ports will keep FDB entries learned in the forwarding database table from aging out.When a
packet with a destination MAC address is received by one of these ports, the packet will refresh the MAC
address in the forwarding database table, once a match has been made, so that it will not age out.
Parameters portlist> - Specify a port or ports to be enabled or disabled as destination hit ports on the Switch.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.
<all> - Specifies that all ports on the Switch will be enabled or disabled as destination hit ports.
[enable | disable] – Used to enable or disable the ports listed in the <portlist> above to be destination hit ports.
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure ports 1 to 5 as destination hit ports:
AT-9724TS:4# config fdb destination_hit ports 1:1-1:5
e n a b l e
Command: config fdb destination_hit ports 1:1-1:5 enable
S u c c e s s .
A T - 9 7 2 4 T S : 4 #
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Allied Telesyn AT-9724TS High-Density Layer 3 Stackable Gigabit Ethernet Switch • Command Line Interface Reference Manual