Cabletron Systems ELS100-24TXG Application Examples

10 Product Overview ELS100-24TXG

(CSMA/CD) protocol, allowing for two-way traffic. Full duplex is

configurable using the Duplex Mode parameter in the Port Menu of the

console menus or via SNMP.

Flow control allows you to manage network traffic during congestion

periods and to prevent the los s of pac kets when port buff er thresh olds ar e

exceeded. Flow control also serves to deny access to additional traffic

that could add to a congestion condition. The ELS100-24TXG switch

supports flow control per the IEEE 802.3x standard. See Appendix C,

“Flow Control,” for more information on this feature.

VLANs allow you to connect users to a specific LAN segment regardles s

of their physical loca tion. The ELS100-24T XG switch supports t agged

VLANs per the IEEE 802.1Q draft standard. With frame tagging, a short

tag is appended to every frame that crosses the network backbone. The

tag identifies which VLAN the frame belongs to. S ee Appe nd ix D, “Vi rtua l

LANs,” for more information.

Class of Service support allows you to assign a higher priority to selected

traffic passing through the switch. The ELS100-24TXG switch supports

Class of Service attributes per the IEEE 802.1p draft standard using a

priority queuing mechanism. This feature ensures that traffic during

congestion periods will not interfere with traffic assign ed a higher priority.

Traffic assigned a lower priority is subject to discard when memory is in

short supply. See Appendix E, “Class of Service,” for more information.

Application Examples

The exploding popularity of the Inter net and of co rporate i ntranet s, as w ell

as new, high-bandwidth de s k top a ppl i c ations, are driving the demand for

Fast Ethernet. The increase i n m ult im ed ia tr af fic and the need to support

legacy protocols alongside ne w , d ata intensive applications is dr i vin g the

need for network segmentation and traffic prioritization.

The ELS100-24TXG switch is ideal for meeti ng the ne eds of today’ s high

performance networks. The switch’s low cost and high port count makes

it attractive and affordable for dedicated 10/100Mbps connections to the

desktop. In addition, extensive features, including redundant links, traffic

Class of Service and VLAN capability, provide the management needed

for the workgroup and local backbone.

The following sections illustrate the ELS100-24TXG switch employed in

application examples:

•Client/Server Network

•Local Backbone