Dear All,
as far as i know and tested, the new RB493 is capable of acting like a 8-port ethernet switch when activating and grouping the ports (except port ether1) in master-port groups.
All works fine, as long as you have only the need that all grouped ports just act like mirror ports.
All Vlans are visible on every grouped Ethernetport and also the native untagged ports act like just one single ethernet port.
But i didn’t find a solution to use one single port just as a native vlan port (without tagging on this port) which is a tagged port inside the switch group on other ports.
On every known manageable switch this could be done easily - but i didn’t find any solution within ROS 3.13.
Within Cisco IOS on Catalysts you would have a config like this:
interface vlan 100
description management vlan
ip address 1.2.3.4 255.255.255.0
interface fastethernet 0/0
description vlan 1 comes untagged by default in this mode, so vlan 100 is tagged here
switch mode trunk
switch trunk encapsulation dot1q
interface fastethernet0/1
description make vlan 100 native (=untagged) and tag all other vlans
switch mode trunk
switch trunk encapsulation dot1q
switch trunk native vlan 100
interface fastethernet 0/2
description this port is used for management with vlan 100 untagged only
switch mode access
switch access vlan 100
I know, that it’s theoreticly possible to give it a try in bridge groups and do it in cpu, but thats practical impossible, because you can address only the bridge interface to use it. because of that limitation you can’t span again vlan 100 to vlan 100 on different bridges/ports for making it tagged and untagged in combination.
Maybe I’m just blind, so any hints or tips are welcome - otherwise it should come up to the wishlist, to give ROS powerfull standard switching features.
Cheers,
Wolfgang