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DES-7200 Configuration Guide Chapter 2 MAC Address Configuration
2-1
2 MAC Address
Configuration
Using the information in the MAC address table, the Ethernet switch rapidly
searches for the address to which the messages in the data link layer are
forwarded. This chapter describes the MAC address configuration, including the
following sections:
Understanding the MAC Address Table
Default Configuration
Configuring the Dynamic Address
Configuring the Dynamic Address Aging Time
Configuring the Management Learning mode of Dynamic Address
Configuring the Limit of Dynamic Addresses for a VLAN
Configuring the Static Address
Configuring the Filtering Address
Configuring the MAC Addres Change Notification Function
Configuring IP address and MAC address binding
Configuration Examples
2.1 Understanding the MAC
Address Table
2.1.1 Overview
Layer-2 forwarding, a major function of the Ethernet Switch, is to forward the
messages by identifying the data link layer information. The switch forwards the
messages to the corresponding interface through the destination MAC
addresses carried by the messages, and stores the information about the
relationship between the destination MAC address and the interface in the MAC
address table.
All the MAC addresses in the MAC address table are associated with the VLAN.
Different MAC addresses are allowed to be in the same VLAN. Each VLAN
maintains a MAC address table logically. It is possible that a MAC address
learned by a VLAN is unknown to other VLANs and shall be learned again.
The MAC address contains the following information: