FTOS Configuration Guide for the C-Series - Force10 Networks

• MAC Address Learning Limit feature: You can set a limit on the number of addresses associated
with a particular interface. As a default, after you set a limit, a MAC address learned by the interface is
added to the MAC Address Table as a static address. You have other options in this feature, for setting
address limits and actions involved in violations of the learning limit.
Configuring static MAC addresses (optional)
Occasionally you want to statically configure some MAC addresses for devices that always remain
attached to the switch. When a static MAC address is configured and its interface is disabled, the packets
destined to this MAC address are not flooded.
To configure static MAC addresses, use the following command in the CONFIGURATION mode:
Command Syntax Command Mode Purpose
mac-address-table static mac-address
output interface vlan vlan-id
To view the static MAC address and the dynamically-learnt MAC addresses, use the
show mac-address-table static command in the EXEC mode.
Figure 106 show mac-address-table static Command Example
CONFIGURATION Assign a static MAC address to an
interface and a VLAN.
Force10#show mac-address static
VlanId Mac Address Type Interface State
1 00:00:00:00:11:22 Static Po 3 Inactive
Force10#
To clear dynamically-learnt MAC addresses, use the following command in the EXEC privilege mode:
Command Syntax Command Mode Purpose
clear mac-address-table
dynamic {address mac-address |
all | interface interface | vlan
vlan-id}
EXEC privilege Clear only dynamically-learnt MAC addresses.
Configure one of the following parameters:
• address mac-address: dynamically-learnt MAC
address
• all: all dynamically-learnt MAC addresses
• interface interface: specify an interface.
• vlan vlan-id: enter a VLAN ID.
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