Cisco 500 Series Administration Guide

Managing MAC Address Tables
Dynamic MAC Addresses
Cisco 500 Series Managed Switch Administration Guide 312
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Dynamic MAC Addresses
The Dynamic Address Table (bridging table) contains the MAC addresses
acquired by monitoring the source addresses of frames entering the device.
To prevent this table from overflowing and to make room for new MAC addresses,
an address is deleted if no corresponding traffic is received for a certain period of
time known as the aging time.
Configuring Dynamic MAC Address Aging Time
To configure the aging time for dynamic addresses:
STEP 1 Click MAC Address Tables > Dynamic Address Settings.
STEP 2 Enter Aging Time. The aging time is a value between the user-configured value
and twice that value minus 1. For example, if you entered 300 seconds, the aging
time is between 300 and 599 seconds.
STEP 3 Click Apply. The aging time is updated.
Querying Dynamic Addresses
To query dynamic addresses:
STEP 1 Click MAC Address Tables > Dynamic Addresses.
STEP 2 In the Filter block, you can enter the following query criteria:
• VLAN ID—Enter the VLAN ID for which the table is queried.
• MAC Address—Enter the MAC address for which the table is queried.
• Interface—Select the interface for which the table is queried. The query can
search for specific unit/slot, ports, or LAGs.
STEP 3 Click Go. The Dynamic MAC Address Table is queried and the results are
displayed.
To delete all of the dynamic MAC addresses. click Clear Table.

Cisco 500 Series Specifications

General

Model	Cisco 500 Series
Category	Switch
Mounting	Rack-mountable
Management	Web-based, CLI, SNMP
Ports	24, 48
Port Speed	10/100/1000 Mbps
PoE Support	Available on some models
Switching Capacity	Up to 176 Gbps
MAC Address Table Size	16, 000 entries
Security	ACLs, 802.1X
Quality of Service (QoS)	Yes
Dimensions	Varies by model
Weight	Varies by model
Humidity	10% to 90% non-condensing
Power Supply	Internal
Power Consumption	Varies by model
Jumbo Frame Support	Up to 9216 bytes