Cabletron-systems SmartSTACK 100 Manual de usuario descargar pdf (Pagina 18)

1-8

Introduction

Access Control (MAC) sub-layer of the Data Link layer. Figure 1-2

shows the OSI Reference Model.

Figure 1-2. OSI Reference Model

Port Trunking

Another performance enhancing feature of the SmartSTACK

ELS100-16TX is Port Trunking. The SmartSTACK ELS100-16TX

allows two Trunk groups of up to eight 10 Mbps or 100 Mbps ports

to be connected between the SmartSTACK ELS100-16TX and

network devices including Cabletron’s SmartStack 10, FastNET

products and ATX LAN switch. This capability provides a scalable

dedicated bandwidth in a single trunk group of up to 1.6 Gbps

(full duplex) when using 100BaseX ports or 160Mbps (full duplex)

when using the ports in 10BaseT mode. This is accomplished

without introducing any emerging technologies such as Gigabit

Ethernet or ATM. By connecting multiple SmartSTACK ELS100-

16TX products using port trunking, the network administrator can

create a virtual chassis (spanning multiple physical chassis),

providing many-switched Ethernet and Fast Ethernet ports at a

very low cost per port.

Autonegotiation

Auto-negotiation is supported on all of the 16 switched Ethernet

Presentation

Application

Session

Transport

Network

Data Link

Physical

ELS100-16TX operates at Layer 2

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Cabletron-systems SmartSTACK 100 Manual de usuario Pagina 18