3Com 3C319 manual Introduction, High-Performance Features, DynamicAccess Class of Service

1 INTRODUCTION

The 3Com® TokenLink® Velocity™ ISA network interface card (NIC) is a high-performance card for PCs with an Industry Standard Architecture (ISA) bus or Extended Industry Standard Architecture (EISA) bus. This NIC is referred to as the 3C319 NIC in this guide.

High-Performance Features

The 3C319 NIC is designed for high network performance and trouble-free operation. This section describes the performance features of the 3C319 NIC.

DynamicAccess Class of Service

3Com’s DynamicAccess™ features optimize network performance. With the DynamicAccess Class of Service feature, you can select the applications—such as multimedia sessions-—that require the highest-priority access to your network. Based on your selection, the network device driver recognizes high-priority applications and prioritizes their data transmissions.

The NIC implements dual queues to ensure that high-priority traffic gets transmitted before normal-priority traffic. When high-priority traffic is available for transmission, a high-priority token is requested.

Parallel Tasking Architecture

Parallel Tasking® architecture provides the industry’s fastest performance by pipelining data between the PC and the network. Parallel Tasking technology improves network data throughput by overlapping processing tasks to speed data transmission and reception.