Summary
Multilayer switching
Multilayer switching relieves pressure on routers without making the network more complicated. This shift, which has ensued from modern LAN switching and routing technologies, avoids bottlenecks while creating the need for new gigabit-networked applications. LAN switching has gained popularity but the combination of Layer 2 and Layer 3 functions is a key reason why networks are approaching their limits. A new generation of products must handle both layers to meet current demand and eliminate Layer 3 bottleneck problems. One multilayer option is fronting a router with a multilayer switch, which then can handle wire-speed IP and IPX traffic forwarding. A second option consists of designating a versatile wire-speed switching router to supplant the legacy backbone router.See the full content of this document
Extract
Switching's new breed.
Melding Layer 2 switching and Layer 3 routing removes scalability and throughput restrictions, builds a foundation for future growth.
Many organizations continue to rely upon traditional multiprotocol routers to provide the foundation for their networking infrastructure. The combined effects of a growing number of connected end users, the acceptance of IP as the protocol of choice, and the introduction of the Web and Web-base...See the full content of this document
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