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Genesys
Technologies prouds itself by carrying the best brands of enterprise
switches on the market. Multilayer switches offered by Genesys
Technologies provide advanced layer 2 and layer 3 features
like IPv4, IPv6, and MPLS support. Most feature fully distributed
wire-speed forwarding that are perfect for enabling high-performance
networking for demanding applications. Our switching products are
perfect for deploying throughout the network: stackable or standalone
switches for the wiring closets or edge of the network; and advanced
modular switches for use at the core and distribution layers
of the network. We can provide the perfect equipment to meet your IT
budget and your organizational needs.
Some Notes about Enterprise Switching Switches may operate at one or more OSI layers, including physical, data link, network, or transport (i.e., end-to-end). A device that operates simultaneously at more than one of these layers is known as a multilayer switch. Multi-layer switching combines layer 2, 3, and 4 switching technologies and provides high-speed scalability with low latency. It accomplishes this high combination of high-speed scalability with low latency by using huge filter tables based on the criteria designed by the network administrator. Multi-layer switching can move traffic at wire speed and also provide layer 3 routing, which can remove the bottleneck from the network routers. This technology is based on the idea of "route once, switch many". Multi-layer switching can make routing/switching decisions based on the following * MAC source/destination address in a Data Link frame * IP source/destination address in the Network layer header * Protocol field in the Network layer header * Port source/destination numbers in the Transport layer header There is no performance difference between a layer 3 and a layer 4 switch because the routing/switching is all hardware based. In switches intended for commercial use, built-in or modular interfaces make it possible to connect different types of networks, including Ethernet, Fibre Channel, ATM, ITU-T G.hn and 802.11. This connectivity can be at any of the layers mentioned. While Layer 2 functionality is adequate for speed-shifting within one technology, interconnecting technologies such as Ethernet and token ring are easier at Layer 3. Interconnection of different Layer 3 networks is done by routers. If there are any features that characterize "Layer-3 switches" as opposed to general-purpose routers, it tends to be that they are optimized, in larger switches, for high-density Ethernet connectivity. In some service provider and other environments where there is a need for a great deal of analysis of network performance and security, switches may be connected between WAN routers as places for analytic modules. Some vendors provide firewall, network intrusion detection, and performance analysis modules that can plug into switch ports. Some of these functions may be on combined modules. In other cases, the switch is used to create a mirror image of data that can go to an external device such as intrusion detection systems and packet sniffers.
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