asked on

3com Baseline inter-switch vlan database

3 - 3com BaseLine 2952-SFP Plus
2 VLANS

Setup - We have 3 Baseline 2952 switches. All switches are connected to each other via ports 47 and 48 which are configured as TRUNK ports.

Most of our equipment resides on the default VLAN1. We have configured a new VLAN (5) and made ports 20-22 on switch 1 access ports on vlan 5. This works fine, equipment plugged into those ports can talk to each other with no problem. The problem is trying use port 8 on switch 2 in vlan 5. If I make that port an access port on VLAN5, the computer cannot communicate with objects on switch 1 ports 20-22.

I do not have these switches in stacking mode, as I thought the trunk ports should allow sharing of the VLAN databases based on dot1q.

My question is, do I need to enable stacking and make ports 47 and 48 stack ports to share the vlan database?

NOTE: I am not trying to route between vlans. Simply share vlans across switches

Thanks

ASKER CERTIFIED SOLUTION

Encrypted1024

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Encrypted1024

I will add a couple things to my first post.

Without stacking, the switches do not "Share" anything. You need to create all the vlans on both switches and then add the VLANs you wish to share between switches to your trunk ports. I would recomend using only only one trunk port to start with as aggregating ports can add a whole other level of complexity. Once you get your VLAN trunking working between switches then you can mess around with aggregating ports.

thecureis

ASKER

I have not added vlan5 to the trunk. Do I simply tag vlan5 on those ports?

thecureis

ASKER

I knew it was something dumb that I was missing.

I modified the trunk ports (47/48) to tag VLAN5 and all is working now.

Thanks