| Publisher | itmWEB | ||
|---|---|---|---|
| Format | HTML | Date added | 14 Aug 2003 |
| Topics | Local Area Networks (LAN), Switching | ||
| Downloads | 7 | ||
The networking marketplace has embraced switching in the LAN. Network administrators who recognize the key benefits of switching in the backbone--consolidation and centralization with fault-tolerant scalable products--are preparing to make important purchases of backbone switching products. We have examined high-speed technologies and found that while some provide ample bandwidth, the correct mechanisms are not built-in to provide QoS for time-sensitive traffic. Furthermore, increasing bandwidth does not make the problem go away, it only postpones the inevitable. Many companies are experiencing these problems as they try to move the bottleneck from the workgroup environment to the backbone. Backbone switching provides a solution to this problem. We also pointed out certain characteristics that should be inherent in backbone switches. The list of characteristics is by no means all-inclusive, but it covers the bulk of the requirements. Although most backbone switches support low-speed technologies like Ethernet and Token Ring, they should provide connectivity to higher-speed backbone technologies like FDDI and ATM. We introduced a scenario to illustrate that solutions do exist, and they make financial sense too.
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