User guide
Table Of Contents
- Contents
- Figures
- Tables
- Preface
- Section I
- Basic Operations
- Chapter 1
- Basic Switch Parameters
- Configuring the Switch’s Name, Location, and Contact
- Changing the Manager and Operator Passwords
- Setting the System Date and Time
- Rebooting a Switch
- Pinging a Remote System
- Returning the AT-S63 Management Software to the Factory Default Values
- Displaying the IP Address of the Local Interface
- Displaying System Information
- Chapter 2
- Port Parameters
- Chapter 3
- Enhanced Stacking
- Chapter 4
- SNMPv1 and SNMPv2c
- Chapter 5
- MAC Address Table
- Chapter 6
- Static Port Trunks
- Chapter 7
- Port Mirroring
- Section II
- Advanced Operations
- Chapter 8
- File System
- Chapter 9
- File Downloads and Uploads
- Chapter 10
- Event Logs and Syslog Client
- Chapter 11
- Classifiers
- Chapter 12
- Access Control Lists
- Chapter 13
- Class of Service
- Chapter 14
- Quality of Service
- Chapter 15
- Denial of Service Defenses
- Chapter 16
- IGMP Snooping
- Section III
- SNMPv3
- Chapter 17
- SNMPv3
- Configuring the SNMPv3 Protocol
- Enabling or Disabling SNMP Management
- Configuring the SNMPv3 User Table
- Configuring the SNMPv3 View Table
- Configuring the SNMPv3 Access Table
- Configuring the SNMPv3 SecurityToGroup Table
- Configuring the SNMPv3 Notify Table
- Configuring the SNMPv3 Target Address Table
- Configuring the SNMPv3 Target Parameters Table
- Configuring the SNMPv3 Community Table
- Displaying SNMPv3 Tables
- Section IV
- Spanning Tree Protocols
- Chapter 18
- Spanning Tree and Rapid Spanning Tree Protocols
- Chapter 19
- Multiple Spanning Tree Protocol
- Section V
- Virtual LANs
- Chapter 20
- Port-based and Tagged VLANs
- Chapter 21
- GARP VLAN Registration Protocol
- Section VI
- Port Security
- Chapter 22
- MAC Address-based Port Security
- Chapter 23
- 802.1x Port-based Network Access Control
- Section VII
- Management Security
- Chapter 24
- Encryption Keys, PKI, and SSL
- Chapter 25
- Secure Shell (SSH)
- Chapter 26
- TACACS+ and RADIUS Protocols
- Chapter 27
- Management Access Control List
- Index

AT-S63 Management Software Web Browser User’s Guide
Section I: Basic Operations 83
Changing the Aging Time
This procedure changes the aging time of the MAC address table. The
switch uses the aging time to delete inactive dynamic MAC addresses
from the MAC address table. The switch deletes an address from the table
if no packets are sent to or received from the address for the period of time
specified in the timer. This prevents the table from becoming full of
addresses of inactive nodes. The default setting for the aging time is 300
seconds (5 minutes).
To configure the aging time, perform the following procedure:
1. From the Home page, select Configuration.
2. From the Configuration menu, select the Layer 2 option.
The Layer 2 page opens with the MAC Address tab selected by
default, as shown in Figure 19 on page 76.
3. In the MAC Address Aging Time field, enter a new value in seconds.
The range is 0 to 1048575 seconds. The default is 300 seconds (5
minutes). The value 0 disables the aging timer. If the aging timer is
disabled, inactive dynamic addresses are not deleted from the table
and the switch stops learning new addresses after the table reaches
maximum capacity.
4. Click Apply.
The new MAC address aging time is activated on the switch.
5. To permanently save your changes, select the Save Config option in
the Configuration menu.