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Editor to share with you what types of switch interfaces in the Internet, I believe most people do not know much about it, so share this article for your reference, I hope you will learn a lot after reading this article. Let's learn about it!

The switch has rich interface types, such as 10GE, GE, FE, OC-48/STM-16 POS, OC-16/STM-4 POS, OC-3/STM-1 POS and so on. It can really achieve high port density and wire-speed routing and switching.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

Switch interface type is a scientific and technological term.

The switch has rich interface types, such as 10GE, GE, FE, OC-48/STM-16 POS, OC-16/STM-4 POS, OC-3/STM-1 POS and so on. It can really achieve high port density and wire-speed routing and switching.

S port means serial interface, also known as high-speed asynchronous serial port, which is mainly used to connect V.35 cable to wide area network, that is, when routers and routers are connected, the bandwidth can be set by command, which is about 10m or 8m.

F port is the FastEthernet interface, called Fast Ethernet port, mainly connected to Ethernet (local area network), connected to the switch or computer, with ordinary twisted pair can be connected, the default rate is 100Mbps, you can use the command speed limit, but can not exceed 100Mbps.

E port is the Ethernet interface, called Ethernet interface, mainly connected to Ethernet (local area network), can also be connected with ordinary twisted pair, the default rate is 10Mbps, the new equipment has eliminated this interface.

Console port is an indispensable interface on the router: control port, which is used to debug the router. In addition, some routers have an AUX interface, which is also a control interface.

G port is a GigabitEthernet interface, called Gigabit Ethernet interface, which is used to connect Ethernet. The rate is 1000Mbps=1Gbps.

Extended data:

There are three link types of switches: access, trunk, and hybrid.

The access type belongs to only one VLAN and is generally used to connect to a computer port.

The trunk type can allow multiple vlan to pass, and can receive and send messages of multiple vlan. It is generally used for ports between switches.

Hybrid type can allow multiple vlan to pass, can accept and send messages of multiple vlan, can be used to connect between switches, can also be used to connect user computers.

The hybrid port and the trunk port handle data in the same way, except when sending data: the hybrid port allows multiple vlan messages to be sent without tag (tagging), while the trunk port only allows the default vlan (that is, the vlan where it is located) without tag (tagging).

The default vlan:access port belongs to only one vlan, so its default vlan is the vlan it is located in, and there is no need to set it; hybrid port and trunk port belong to multiple vlan, so you need to set the default vlan ID. By default, the default vlan of hybrid port and trunk port is vlan1;. If you set the default vlan ID of the port, when the port receives a message without vlan tag, it will forward the message to the port belonging to the default vlan.

When the port sends a message with vlan tag, if the vlan id of the message is the same as the default vlan id of the port, the system will remove the vlan tag of the message and then send the message.

Switch interface entry and exit data processing process:

Access port receiving message: receives a message to determine whether there is a vlan message. If not, call the PVID of the port and exchange and forward it. If so, discard it directly (default).

Access port message: stripping the vlan information of the message and sending it directly.

Trunk port receiving message: receives a message to determine whether there is a vlan message. If there is no PVID on the port, exchange and forward it. If there is a judgment on whether the trunk port allows the vlan data to enter, forward it if possible, otherwise discard it.

Trunk port message: compare the PVID of the port with the vlan information of the message to be sent. If they are equal, peel off the vlan message and send it again. If they are not equal, send it directly.

Hybrid port receiving message: receives a message to determine whether there is a vlan message. If not, type the PVID of the port, and exchange and forward it. If so, determine whether the hybrid port allows the vlan data to enter, and forward it, otherwise discard it (at this time, the untag configuration on the port is not considered, and the untag configuration only works when sending messages)

Hybrid port message: 1. Determine the attributes of the vlan on this port (Huawei device dis interface can see which vlan is untag and which vlan is tag for this port)

two。 If it is untag, the vlan message will be stripped and then sent. If it is tag, it will be sent directly.

The above is all the contents of the article "what are the types of switch interfaces in the Internet?" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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