3Com 9100 Entries, Following example adds a permanent entry to the FDB, Disable learning ports

Configuring FDB Entries 83

Configuring FDB To configure entries in the FDB, use the commands listed in Table 21.

Entries

Table 21 FDB Configuration Commands

Command Description

create fdbentry <mac_address> vlan <name> [blackhole <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.

■ 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.
config fdb agingtime <number>	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.
enable learning ports <portlist>	Enables MAC address learning on one or more ports.
disable learning ports	Disables MAC address learning on one or more ports
<portlist>	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.

FDB Configuration Examples

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.