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Configuring FDB
Entries
Table 21 FDB Configuration Commands
Command
create fdbentry <mac_address>
vlan <name> [blackhole |
<portlist> | dynamic]
{qosprofile <qosname>}
config fdb agingtime <number>
enable learning ports <portlist> Enables MAC address learning on one or more ports.
disable learning ports
<portlist>
FDB Configuration
Examples
To configure entries in the FDB, use the commands listed in
Description
Creates an FDB entry. Specify the following:
mac_address — Device MAC address, using
colon separated bytes.
name — VLAN associated with MAC address.
blackhole — Configures the MAC address as a
blackhole entry.
portlist — Port numbers associated with MAC
address.
dynamic — Specifies that the entry will be learned
dynamically. Used to associated a QoS profile with
a dynamically learned entry.
qosname — QoS profile associated with MAC
address.
If more than one port number is associated with a
permanent MAC entry, packets are multicast to the
multiple destinations.
Configures the FDB aging time. The range is 15
through 1,000,000 seconds. The default value is 300
seconds. A value of 0 indicates that the entry should
never be aged out.
Disables MAC address learning on one or more ports
for security purposes. If MAC address learning is
disabled, only broadcast traffic and packets destined to
a permanent MAC address matching that port
number, are forwarded. The default setting is enabled.
The following example adds a permanent entry to the FDB:
create fdbentry 00:D0:96:BF:31:50 vlan marketing port 4
The permanent entry has the following characteristics:
MAC address is 00D096BF3150.
VLAN name is marketing .
Configuring FDB Entries
Table
21.
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