Community discussions

MikroTik App
 
ericwaynedavis
just joined
Topic Author
Posts: 1
Joined: Wed Nov 27, 2019 12:03 am

CSS326 VLAN forwarding not working

Tue Mar 31, 2020 11:50 pm

I'm want to use a CSS326 as a VLAN switch with MAC learning disabled such that ports 2-24 are untagged access ports with their default VLANs set as 2-24, respectively. SFP1 is also a tagged member of these same VLANs. Each port is configured with strict VLAN filtering. If I disable MAC learning on these VLANs, then only broadcast (DHCP) traffic will transit the ports. I would expect that because each VLAN has only two ports (access & trunk) that the switch would simply forward packets between these interfaces. It seems this should be working as the documentation and user interface support the ability to disable MAC learning.
 
User avatar
k6ccc
Long time Member
Long time Member
Posts: 627
Joined: Fri May 13, 2016 12:01 am
Location: Glendora, CA, USA (near Los Angeles)

Re: CSS326 VLAN forwarding not working

Thu Apr 16, 2020 2:39 am

Although not entirely what you describe, but most of my switches have one trunk port to somewhere else with all VLANs appearing tagged, and some number of untagged ports (in quite a few cases only one other port) on a particular VLAN. It works fine for me, but I have MAC learning turned on. In a VLAN environment, why would you turn MAC learning off? Also, what is your Port Isolation setting on the VLANs tab?
RB750Gr3, RB750r2, CRS326-24G-2S (in SwitchOS), CSS326-24G-2S, CSS106-5G-1S, RB260GS
Not sure if I beat them in submission, or they beat me into submission

Warning: I know enough to be dangerous...

Jim

Who is online

Users browsing this forum: No registered users and 9 guests