D-Link DES-3326 User Manual - Features
DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
Introduction
5
The Functions of a Layer 3 Switch
Traditional routers, once the core components of large networks,
became an obstacle to the migration toward next-generation
networks. Attempts to make software-based routers forward
packets more quickly were inadequate.
A layer 3 switch does everything to a packet that a traditional
router does:
•
Determines forwarding path based on Layer 3 information
•
Validates the integrity of the Layer 3 header via checksum
•
Verifies packet expiration and updates accordingly
•
Processes and responds to any optional information
•
Updates forwarding statistics in the Management
Information Base
A Layer 3 switch can be placed anywhere within a network core or
backbone, easily and cost-effectively replacing the traditional
collapsed backbone router. The DES-3326 Layer 3 switch
communicates with a WAN router using a standard Ethernet/Fast
Ethernet port. Multiple DES-3326 switches can be linked via the
optional, 2-port Gigabit Ethernet module.
Features
The DES-3326 Switch was designed for easy installation and high
performance in an environment where traffic on the network and
the number of users increase continuously.
Switch features include: