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C H A P T E R 8 Forwarding Database (FDB)
123
FDB CONFIGURATION EXAMPLES
This example adds a permanent entry to the FDB:
create fdbentry 00:A0:C9:12:34:56 vlan marketing
port 4
The permanent entry has these characteristics:
• MAC address is 00:A0:C9:12:34:56.
• VLAN name is
marketing.
• Port number for this device is 4.
This example associates the QoS profile qp2 with a dynamic entry
that is learned by the FDB:
If you assign a MAC
address to a port that is
not part of a VLAN, that
port will be configured as
a black hole.
create fdbentry 00:A0:C9:12:34:56 vlan net34
dynamic qosprofile qp2
This entry has these characteristics:
• MAC address is 00:A0:C9:12:34:56.
• VLAN name is
net34.
• The entry is learned dynamically.
• QoS profile
qp2 is applied when the entry is learned.
configure fdb agingtime <number> Configures the FDB aging time (in seconds). The
range is 15 through 1,000,000. The default value
is 300. A value of 0 indicates that the entry is
never aged out.
disable learning port <portlist> Disables MAC-address learning on one or more
ports for security purposes. Once disabled, only
broadcast traffic, EDP traffic, and packets destined
for a permanent MAC address that matches the
port number, are forwarded to the port. The
default setting is enabled.
enable learning port <portlist> Enables MAC-address learning on one or more
ports.
Table 8.1: FDB Configuration Commands (continued)
Command Description