Campus network structure: optical fiber, optical modem, router, backbone switch, optical module, opt

Generally, the network switch is configured with 2m to connect to the ** interface, which has 30 channels.

And your ** device needs to be upgraded to the same type of interface simultaneously.

Or your network switch provides a similar interface to the original.

I'm sorry I couldn't help you, and I hope someone answers you soon.

1. You can change to a new optical module, which needs to be supported by this switch.

2. An optical module can be connected to two optical fibers (one send and one receive), of course, six optical fibers can be connected to the optical module (a total of 3) can be transmitted to other devices, but not to the same device, which will cause a data storm.

3. There is only one connection mode for optical fiber jumpers: send-receive. That is to say, the reverse twisting.

4. The optical module does not need to be set on the switch, and it is plug and play.

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Huawei's products mainly involve switching networks, transmission networks, wireless and wired fixed access networks, data communication networks, and wireless terminal products in communication networks, providing hardware equipment, software, services, and solutions for communications operators and professional network owners around the world.

Today, we will take a look at Huawei's CE8860, the industry's first 25GE access Tor switch.

CloudEngine 8860 (CE8860) series switches are a new generation of high-performance, high-density, low-latency, flexible plug-in card Ethernet switches.

The CE8860 switches provide high-density 100GE, 40GE, 25GE, and 10GE ports, supporting rich data center features and high-performance stacking, helping enterprises and operators build data center network platforms for the cloud computing era. The CE8860 switch is located at the core or aggregation of the data center, and can also be used for the core or aggregation of the campus network.

The CE8860 can be used with Huawei's CloudEngine series data center switches CE12800, CE7800, CE6800, and CE5800 to build a flexible, virtual, and high-quality data center network to meet the network requirements of data centers in the cloud computing era.

Product features: Industry's first 25GE access switch.

High-density 100GE 40G aggregation with superior capacity.

Highly reliable long-distance stacking with excellent performance.

Large-scale routing bridges, scale as needed.

Converged enhanced Ethernet for unified bearing.

Rapid migration of virtual machines with policies on the go.

Programmable network devices, flexible customization.

Virtualized hardware gateway for rapid deployment.

Zero-configuration device deployment and automatic O&M.

Strict front and rear air ducts, high efficiency and energy saving.

The indicator light is perfectly presented, and the operation and maintenance are simple.

Typical applications in the data center:

Typical applications in campus networks:

The differences between switches with optical ports and switches with optical modules are as follows: different connections, different replacements, and different electrical port losses.

First, the connection is different.

1. Switch with optical port: The switch with optical port is connected to the internal firewall, router, or switch through the optical port.

2. Optical module switch: The optical module switch is connected to the internal firewall, router, or switch through the electrical port.

Second, the replacement is different.

1. Switches with optical ports: If the optical port of a switch with an optical port is damaged, it can be replaced by products from other manufacturers, which is very easy to maintain.

2. Optical module switch: Once the optical module of the optical module is damaged, it needs to be replaced with the same module from the original manufacturer, which brings great trouble to the later maintenance.

Third, the loss of electrical port is different.

1. Switches with optical ports: Switches with optical ports will not lose electrical ports.

2. Optical module switch: The switch with optical module will lose one or even several electrical ports after adding an optical module.

In essence, there is a difference, which is mainly reflected in the industrial switch, and the optical port generally refers to two types:

1. Optical modules can be plugged into the switch.

2. The switch provides ST and other optical interfaces, which are directly connected to optical fibers, and do not need to use optical modules In the general switch field, such as data communication and transmission, in fact, switches with optical ports and switches with optical modules refer to those that support optical module interfaces, and the statements are different.

Fiber optic transceivers are used for photoelectric conversion, and switches are networked.

Switch = Switch main processing module + interface processing module + interface.

The optical module here is the interface processing module, which can handle optical fiber signal access.

In general, the interface is an optical fiber interface, and in special cases, RJ45 electrical interface is also used.

An optical module is a medium that connects switches and other products. In order to connect with other products, the switch must have optical modules, so the network switch needs to be configured with a certain number of optical modules according to the needs of the project.

If it is equipped with an optical module, it is used for optical fiber transmission network data.

You can connect any way, routing-switching-server. The current requirement is that one switch is sufficient, whether the fiber module is needed depends on the bandwidth of the port. For example, a router can use two optical ports, and a switch can also be connected to the router with an optical port, and an electrical port can be connected to the server.

The optical modem generally has one or two exits that are connected to the router, and the route is connected to the switch, the switch you refer to is the optical modem, the general switch is only used for intranet expansion ports, and it is directly connected to the PC side, if you still don't understand anything, you can ask me directly, word by word, I hope you can use it.

Note that the optical port of switch A and the optical port of switch B can be connected, note that the parameters of the optical port should be the same, for example: the same band, the same single-mode or multi-mode, the same rate, the optical fiber line can be the same as the single and multi-mode optical port of the switch, otherwise it cannot communicate, good luck! Details:

In many switches, optical and electrical ports are multiplexed. That is to say, if you use an electric port, you can't use a light port (mini).

If the building mainly uses optical ports, it is necessary to switch photoelectricity.

I don't know if the method of each producer is consistent, please refer to the manual.

Starnet Cisco command, enter the port configuration mode: media type fiber

Yes, the main line of the optical LAN is directly switched, and the second is connected to the router.

1. The switch can be connected to the switch again, and the switch is called cascade, which can theoretically be cascaded endlessly, but in the actual application process, it is recommended that the cascade should not exceed four layers.

2. Cascade can be defined as two or more switches connected to each other in a certain way, and multiple switches can be cascaded in a variety of ways according to the need. In a larger local area network, such as a campus network (campus network), multiple switches generally form a cascade structure of bus, tree, or star according to their performance and purpose.

With a light mouth... What about optical transceivers? Have it?

If there is, it will be easy to do.

After the optical fiber is spliced, make an optical fiber jumper, and connect it directly.

No, an optical modem is a PON device, which is divided into GPON and EPON, and is an optical switch or router.

I'm not sure what you're talking about, but this kind of test module is generally SFP, SFP+ and can't be used on PON networks.