I'm using Init7's Fiber7 for quite a while now. For my initial 1 Gbps network setup i bought this media converter: TP-LINK MC220L. I never had an issue with it and it is still working. But i always wanted to use my Unifi Switch 8 POE-150W as media converter since i still have some free ports.
In this blog article, i'll explain on how you can setup the Unifi Switch 8 POE-150W (Ubiquiti US-8-150W) as media converter. The configuration is pretty simple.
On the Unifi Switch you need:
- 1 free RJ45 LAN Port
- 1 free SFP Port
The other needed equipment should also be clear:
- Fiber optic cable from the OTO socket
⤷ I use this: Lightwin Fiber optic cable (300cm)
- Bidirectional WDM SFP module
⤷ I use this one: TP-LINK TL-SM321B, SFP, Simplex, LX/LC (transceivers)
- Firewall / Router with WAN and LAN Ports
⤷ I use the Ubiquiti USG: UniFi Security Gateway
Final configuration in this example setup (with Unifi USG) looks like this:
You need to decide on when you want to plug the new configuration. You could plug in before configuring the network and switch ports, or you can do that afterwards. I did everything after the configuration because i had a running network. Like this, there is only a very short outage when plugging in to the new ports.
Note: This is an example configuration. You can name your networks as you like. You can also change the Unifi Switch Port numbers to whatever Ports you have available. This example should also work if you have different hardware for the Firewall / Router or Unifi Switch with an SFP Port.
Step 1: Create a backup of your configuration
Create a Unifi Controller backup which includes all devices: Go to
Settings > Maintenance > Backup and click the
See also: Generating a New Backup
Step 2: Create a new
VLAN only network
To create a new VLAN, go to
Settings -> Networks -> Local Networks in your Unifi Controller, then click on the
Create New Local Network-Button. Choose
Create Advanced Network, then
VLAN only and finally you can enter a network name and a VLAN ID:
The network name and the VLAN ID can be chosen at will. Just make sure that you don't already use the VLAN ID or network name somewhere else.
Step 3: Configure the Unifi Switch ports
Now we will configure the Unifi Switch ports to use the correct network.
In my case i already have a running corporate network called
With the newly configured VLAN only network called
VLAN_InetRaw, i now have two networks setup:
The port configuration for the Unifi Switch should now be like so:
- Port 1-7:
- Port 8 & SFP 1:
Configuring Ports 1-7 with new Switch Port Profile
Change Ports 1-7 to use the Switch Port Profile
Configuring Port 8 and SFP 1 with new Switch Port Profile
Change Port 8 and SFP 1 to use the Switch Port Profile
That's all for the Unifi Controller configuration!
These Port changes are now provisioned to the Switch and should be active immediately after provisioning.
If you didn't already switched the fiber optical and the RJ45 plugs, here is how it should be plugged:
- Fiber optic cable from the
SFP 1Port on the Unifi Switch using the Bidirectional WDM SFP module
- From Port 8 to the USG WAN-Port
- From the USG LAN (LAN 1) to Port 1-7 of the Unifi Switch
All done! You should now have access to the internet again in your network.
If it does not work, check all of the configurations, cables and plugged ports again to make sure there was no mistake. Check also whether the plugs are inserted correctly.
If it still fails and you are sure that the setup/configuration is correct, revert everything you have done and restore the configuration backup from Step 1: Restoring a Backup