Vlans and Sub interface

Newbie327164 Lv1Posted 24 Jan 2023 09:34

Hello there, I have a question what is the difference between VLAN interface and Sub-interface?

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The major difference is that an SVI is bound to a VLAN used for L2 switching, while a subinterface is part of an L3 interface that doesn't take part in L2 switching. Accordingly, a specific VLAN ID on a subinterface may indicate a different VLAN (L2 segment aka broadcast domain) than the same VLID on another interface.
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Newbie517762 Lv5Posted 30 Jan 2023 10:15
  
Thanks for your sharing !
Farina Ahmed Lv5Posted 25 Jan 2023 13:41
  
Vlan interface is for certain vlan whereas sub interface is breaking that vlan interface so two or multiple vlan can communicate.
CLELUQMAN Lv4Posted 25 Jan 2023 09:24
  
VLAN interface - L2 switching
Sub interface - L3 switching
Jhazz Lv3Posted 24 Jan 2023 14:54
  
VLAN is logical overlay network that groups together a subset of devices that share a physical LAN, isolating the traffic for each group and sub interface division of one physical interface into multiple logical interfaces
rivsy Lv5Posted 24 Jan 2023 14:50
  
VLAN allows different computers and devices to be connected virtually to each other as if they were in a LAN sharing a single broadcast domain while sub-interfaces is to provide unique Layer 3 interfaces to each VLAN that is supported by the parent interface.
RegiBoy Lv5Posted 24 Jan 2023 12:21
  
Vlan interface supports one or more vlans and usually operate at layer 2. The subinterface on the other hand, it is a layer 3 interface within a layer 3 interface. Subinterface is usually used when configuring router on a stick.
Faisal P Posted 24 Jan 2023 12:21
  
The ethernet subinterfaces are the logical interfaces used on a router to trunk with a switch or a host/server with multiple VLANs

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