Tuesday 16 February 2021

VLAN , Trunk, Access, General

Trunk  port can set Tag and Untag               Multi VLAN ID

Access port cannot set Tag and Untag        Single VLAN ID

General port only can set Untag                  Multi VLAN ID

Trunk Port Untag Vlan is Native Vlan

Access Port Untag Vlan is Access Vlan


On a port, which is an Access Port, the Untagged VLAN is called the Access VLAN
On a port, which is a Trunk Port, the Untagged VLAN is called the Native VLAN.


4 Replies. Trunk mode has one VLAN that is untagged, the native VLAN, and all other VLANs are tagged. General mode can send untagged traffic from multiple VLANs, but can only receive untagged traffic on the PVID. General mode can also send and receive traffic for multiple tagged VLANs

 

On a port, which is a Trunk Port, the Untagged VLAN is called the Native VLAN. ... On “Access” ports, untagged traffic is associated with the “Access VLAN”. On “Trunk” ports, untagged traffic is associated with the “Native VLAN

 

https://networkdirection.net/articles/network-theory/taggeduntaggedandnativevlans/

Native VLANs

In some cases, an untagged frame will arrive on a tagged port. To handle this, tagged ports have a special VLAN configured on them called the untagged VLAN. This is also known as the ‘native VLAN’.

The switch assigns any untagged frame that arrives on a tagged port to the native VLAN. If a frame on the native VLAN leaves a trunk (tagged) port, the switch strips the VLAN tag out.

In short, the native VLAN is a way of carrying untagged traffic across one or more switches.

 

 

https://community.linksys.com/t5/Switches/access-general-or-trunk-Tagged-or-not-Getting-desperate/td-p/161352

 


Access mode is for client devices

Trunk mode uses tagged and untagged frames

Generally, do not use General mode. In most cases it is not necessary. 

 

 

 

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