What is the difference between access and trunk ports?

The difference between access and trunk ports: 1. The Access port is used to connect terminal devices and provide access to a single VLAN, while the Trunk port is used to connect between switches and provide transmission of multiple VLANs; 2. Access A port only transmits data belonging to a specified VLAN, while a Trunk port can transmit data from multiple VLANs and uses VLAN tags to distinguish them.

In computer networks, Access ports and Trunk ports are different types of ports used to connect to switches. They have the following differences:

1. Access port: Access port is used to connect terminal devices, such as computers, IP phones, etc., to provide access to a single VLAN. The Access port can only transmit data belonging to the specified VLAN and does not support transmitting data of multiple VLANs. Normally, the Access port will add a VLAN tag to the received data frame and send it to the specified VLAN.

2. Trunk port: Trunk port is used to connect switches and provide transmission of multiple VLANs. Trunk ports can transmit data of multiple VLANs at the same time and distinguish them by using VLAN tags. Data frames on the trunk port will be tagged with VLAN tags to identify which VLAN they belong to, thereby enabling data transmission between different VLANs.

To summarize, the Access port is used to connect terminal devices and provide access to a single VLAN; while the Trunk port is used to connect switches between switches and provide transmission of multiple VLANs. Access ports only transmit data belonging to specified VLANs, while Trunk ports can transmit data from multiple VLANs and use VLAN tags to distinguish them.

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