- by x32x01 ||
In the world of networking, not all switch ports are the same. Whether you're studying for your CCNA or managing a live network, knowing the difference between Access and Trunk ports is essential. Let’s break it down simply 
What Is an Access Port?
An Access Port is designed for end-user devices like PCs, printers, and IP phones. It connects directly to the user side of the network and belongs to only one VLAN.
In short: Access ports connect people to the network.
What Is a Trunk Port?
A Trunk Port connects networking devices together - like switch-to-switch or switch-to-router links. It carries traffic from multiple VLANs simultaneously using VLAN tagging.
In short: Trunk ports are the highways between your switches and routers.
Pro Tip
Use Access Ports for user devices and Trunk Ports for interconnecting your networking equipment. Mixing them up can lead to VLAN issues, IP conflicts, or even complete network outages 
What Is an Access Port? 
An Access Port is designed for end-user devices like PCs, printers, and IP phones. It connects directly to the user side of the network and belongs to only one VLAN.Key Features of Access Ports:
Connects to end devices (PCs, printers, phones)
Works with a single VLAN only
Sends frames without VLAN tags (untagged)
Devices share the same broadcast domain
Supports Voice VLAN for IP phones
In short: Access ports connect people to the network.What Is a Trunk Port? 
A Trunk Port connects networking devices together - like switch-to-switch or switch-to-router links. It carries traffic from multiple VLANs simultaneously using VLAN tagging.Key Features of Trunk Ports:
Connects switches or routers
Carries multiple VLANs at once
Uses VLAN tagging (802.1Q) to separate traffic
Each VLAN forms its own broadcast domain- Voice VLAN not supported
In short: Trunk ports are the highways between your switches and routers.Pro Tip 
Use Access Ports for user devices and Trunk Ports for interconnecting your networking equipment. Mixing them up can lead to VLAN issues, IP conflicts, or even complete network outages Last edited: