User guide

B
LACK
D
IAMOND
U
SER
G
UIDE
5-3
C
ONFIGURING
FDB E
NTRIES
H
OW
FDB E
NTRIES
G
ET
A
DDED
Entries are added into the FDB in the following two ways:
• The BlackDiamond can learn entries. The system updates its FDB with the source
MAC address from a packet, the VLAN, and the port identifier on which the source
packet is received.
• You can enter and update entries using a MIB browser, an SNMP Network Manager,
or the command-line interface.
A
SSOCIATING A
Q
O
S P
ROFILE WITH AN
FDB E
NTRY
You can associate a QoS profile with a MAC address (and VLAN) of a device that will
be dynamically learned. The FDB treats the entry like a dynamic entry (it is learned, it
can be aged out of the database, and so on). The BlackDiamond applies the QoS profile
as soon as the FDB entry is learned.
C
ONFIGURING
FDB E
NTRIES
To configure entries in the FDB, use the commands listed in Table 5-1.
Table 5-1:
FDB Configuration Commands
Command Description
create fdbentry <mac_address> vlan
<name> [blackhole | <slot:portlist> |
dynamic] {qosprofile <qosname>}
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.
■
slot:portlist
— Slot and 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.