Cabletron Systems ELS100-8TXUF2 manual Application Examples, LEDs, Full Duplex Mode, Flow Control

A broadcast cutoff threshold rate has been set in the switch for the forwarding of broadcast and unknown destination address packets. If the cutoff rate is exceeded, further packets of these types are dropped. This capability helps to alleviate broadcast storms, a problem often encountered in Ethernet networks.

LEDs

The switch port LEDs provide a quick and accurate display of the status of switch connections. The port LEDs indicate link integrity, speed, and collisions (for half-duplex connections).

Full Duplex Mode

The full duplex mode of operation on a port can double the throughput of switch connections. This mode disables the collision detection portion of the Ethernet Carrier Sense Multiple Access with Collision Detection (CSMA/CD) protocol allowing for two-way traffic.

Flow Control

Flow control allows you to manage network traffic during congestion periods and to prevent the loss of packets when port buffer thresholds are exceeded. Flow control also serves to deny access to additional traffic that could add to a congestion condition. The ELS100-8TXUF2 switch supports flow control per the IEEE 802.3x standard. See Appendix C “Flow Control” for more information on this feature.

Spanning Tree

This product is intended to be used as an end-switch and does not support spanning tree. There is no loop detection. The user is cautioned to understand and avoid configurations that can create a loop.

Application Examples

The exploding popularity of the Internet and of corporate intranets, as well as new, high-bandwidth desktop applications are driving the demand for Fast Ethernet. The increase in multimedia traffic and the need to support legacy protocols alongside new, data intensive applications is driving the need for network segmentation and traffic prioritization.

The ELS100-8TXUF2 switch is ideal for meeting the needs of today’s high performance networks. The switch’s low cost makes it attractive and affordable for dedicated 10/100Mbps connections to the desktop.

The following sections illustrate the ELS100-8TXUF2 switch employed in application examples:

•Client/Server Network

•Local Backbone

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