Cisco Gigabit Switches with independent fixed ports

For cisco Gigabit Switches with independent fixed ports, the independent fixed port switches in cisco Gigabit Switches are worth exploring. In general, A brief introduction will give you a simple understanding of cisco Gigabit Switches. In this way, multi-layer cisco Gigabit Switches can use the system's cpu to process policies such as routing and network security to implement advanced network applications.

Independent fixed port) Switch

This is the most common cisco Gigabit Switch, which provides low-cost network solutions for Growth Enterprises. The system has fixed interfaces that cannot be extended). When enterprise growth needs to expand the number of ports of the cisco Gigabit Switch, the network administrator must purchase some cisco Gigabit Switches.

In general, the composition of the cisco Gigabit Switch is very similar to that of a common computer. Cisco Gigabit Switch has its own cpu, memory, external memory flash function similar to the hard disk of a computer), boot memory is similar to the bios of a computer) and an important switch chip and network interface chip are similar to NICs in a computer )..

Unlike ordinary computers, most network interface chips perform storage and forwarding operations through switching chips instead of the system cpu after receiving data. The independent fixed port mentioned above) this is the structure of a cisco Gigabit Switch and a non-managed cisco Gigabit Switch.

The difference is that an independent fixed port) the cisco Gigabit Switch only loses a little bit of the advanced cisco Gigabit Switch in terms of port scalability, but according to the design, in the system, you can use a very advanced cpu and a large amount of memory.

In this way, multi-layer cisco Gigabit Switches can use the system's cpu to process policies such as routing and network security to implement advanced network applications. Many cisco Gigabit Switches use general-purpose CPUs. Of course, they are not common intel, but some of them are also some of the best of our products, such as Motorola's mpc1_5 or mips.

In Figure 5, bcm5464 is a 4-port Gigabit electrical Transceiver With Integrated copper/optical media interfaces. This is what we call a network interface chip. It needs to work with the physical layer defined by optical fiber or copper wire) to form an interface for sending and receiving Ethernet raw signals.

Then, it connects to a 12-port Gigabit switching chip. The 12-channel Gigabit signal transmitted by the three bcm5464 is switched in the bcm5691 chip, the corresponding mac Learning Mechanism and ing table are created, and then forwarded to the destination port through the corresponding bcm5464.

For non-managed cisco Gigabit Switches, because of Simpler requirements, you can use less memory and lower-consumption and lower-cost CPUs during design. Commonly, there are various cpu cores of the arm kernel. This simple design only serves to start the system and Download Simple Control commands to the switching chip, so it is impossible to complete high-level exchange.

Conclusion: The R & D personnel and suppliers of network products need to invest a lot in designing a mature and stable network device. They all hope to master the core technologies and capabilities in the design process, launch the product as quickly as possible. Based on this demand, semiconductor chip manufacturers of network equipment have designed cisco Gigabit Switch chips to be modular.

Whether developing a simple cisco Gigabit Switch or the most advanced core route cisco Gigabit Switch, its design concept will be as simple as a jigsaw puzzle game after an hour. Dr. ford Tamer, vice president of broadcom, a network equipment chip vendor, said: "compared with competitors, the advantage of Broadcom chip solutions lies in low cost and high performance ."

The reporter was surprised at the comments of Broadcom, the leader in the exchange chip market, but soon understood that it was more simplified and closer to the market by taking advantage of technology, reducing costs based on the advantages of scale is the way to the survival of international leader enterprises.

Modular Design means that more excellent products can quickly enter the market, and also means that the competition has shifted from the product itself to the technical competition of building blocks at the product core, therefore, Chinese vendors have more opportunities. We are looking forward to making a difference for Chinese manufacturers.