Static Switching Versus Dynamic Switching
If you’ve gotten to the point where your network is extremely congested and you’ve called vendors in for demonstration and quotes, be extraordinary wary if their solutions depend on static switches. Although the devices that you evaluate during the course of re-engineering your network may or may not be explicitly referred to us static switches, take a good look at the functionality of the particular piece or pieces of hardware. If the products perform in a fashion that appears to make them nothing more than glorified hubs, chances are that you really don’t want to invest in that type of switch. After all, the point of this whole operation is to segment and intelligently control intersegment traffic, thus reducing congestion. Static switches just don’t hit the mark.
On the other end of the spectrum are the products that you do want to consider seriously: dynamic switches. Dynamic switches not only pay special attention to the forwarding of packets to their proper destination, but also maintain a table that associates individual nodes with specific ports to which they are connected. This information, updated each time a particular machine transmits across the network, or perhaps at operator- defined intervals, keeps the switch’s information as to node/port combinations up to date, allowing the switch to quickly direct frames across the proper segments, rather than across all segments on the switch.
—————— Thanks Everyone