Dell S4048T User Manual

• Specify an aging time.
CONFIGURATION mode
mac-address-table aging-time seconds
The range is from 10 to 1000000.
Configuring a Static MAC Address
A static entry is one that is not subject to aging. Enter static entries manually.
To create a static MAC address entry, use the following command.
• Create a static MAC address entry in the MAC address table.
CONFIGURATION mode
mac-address-table static
Displaying the MAC Address Table
To display the MAC address table, use the following command.
• Display the contents of the MAC address table.
EXEC Privilege mode
show mac-address-table [address | aging-time [vlan vlan-id]| count | dynamic |
interface | static | vlan]
• address: displays the specified entry.
• aging-time: displays the configured aging-time.
• count: displays the number of dynamic and static entries for all VLANs, and the total number of
entries.
• dynamic: displays only dynamic entries.
• interface: displays only entries for the specified interface.
• static: displays only static entries.
• vlan: displays only entries for the specified VLAN.
MAC Learning Limit
MAC address learning limit is a method of port security on Layer 2 port-channel and physical interfaces, and
VLANs. It allows you to set an upper limit on the number of MAC addresses that learned on an interface/
VLAN. After the limit is reached, the system drops all traffic from a device with an unlearned MAC address.
This section describes the following:
• Setting the MAC Learning Limit
• mac learning-limit Dynamic
Layer 2 598

Dell S4048T Specifications

General

Switching Capacity	1.44 Tbps
Rack Units	1U
Form Factor	Rack-mountable
Power Device	Internal power supply
Power Redundancy	Optional
Product Type	Switch
Jumbo Frame Support	Yes
Routing Protocol	OSPF, BGP, RIP, VRRP, PIM-SM, IGMP
Remote Management Protocol	SNMP, RMON, Telnet, SSH
Features	Quality of Service (QoS), Jumbo Frames Support, Virtual Route Redundancy Protocol (VRRP), VLAN support, sFlow, Multiple Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP), IPv6 support
Compliant Standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3ae
Dimensions (W x D x H)	17.3 in x 16 in x 1.7 in
Operating Temperature	0°C to 40 °C
Operating Humidity	10% to 90% (non-condensing)