Vlan in bridge vs bridge vlan filtering

RouterOS General
1

So basically we have the options to:

– simply create a bridge, add an interface as untagged port, and add a Vlan interface bonded to a phisical port with the pvid declared, as “trunk” tagged interface.
– create a bridge , add the untagged port specifying their pvid in adding phase, enable vlan filtering , declare wich ports are tagged on bridge->vlan .


What’s the difference and when the two options should be used ?

I can see the first option allow a single Vlan (multiple vlan require multiple bridges), while the second can include mutiple vlan inside the same bridge.

2
  • Bridge VLAN Filtering has Layer 2 and Layer 3 Hardware Offloading features available in specific products.
  • Hardware Offloading varies quite a bit but RouterOS will gloss over such mostly but not always perfectly.
  • See Bridge Hardware Offloading and L3 Hardware Offloading