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In certain scenarios, it may be necessary to assign multiple VLAN tags to the same network port. This is particularly common in environments where devices conne

In certain scenarios, it may be necessary to assign multiple VLAN tags to the same network port. This is particularly common in environments where devices connected to that port need access to different network segments simultaneously. For example, a networked device in a conference room might require access to VLANs designated for both guest internet and internal company resources. In this case, the port would be configured as a 'trunk' port, allowing traffic from multiple VLANs (each identified by a unique tag) to pass through. This setup ensures that the device can communicate across different departmental or functional network segments, such as VLANs for e.g. IT, Marketing, or Sales, etc. Using VLANs over physical LANs or different subnets is fundamentally about enhancing network management efficiency and flexibility. The core advantage of VLANs is that they allow network administrators to segment and manage the network logically without the need for physical rearrangements. This means an engineer can configure and reconfigure network segments without the need to physically move cables or hardware (or even be on-site).

kemotep 3y ago
This doesn’t answer the question about needing more than 50. Even if there are 20 departments, a development, testing/qa, and production server environment, phones, printers, 12 conference rooms, a dmz, an IoT, staff, and guest wifi, backups on their own vlan, a management vlan, and multiple vpns, you would still come under 50 with a few more to spare. If you have a network like this it might also behoove you to physically separate it out so guest infrastructure and production, and management interfaces are all on completely different devices and thus each network doesn’t need all vlans. Unifi doesn’t sell the highest quality of equipment that could necessarily support more complex environments in the first place but needing more than 50 vlans on one physical network sounds almost unsustainable.
- lukeholder 3y ago
  It also doesn’t answer why a company that has 50 vlans wants to buy a tiny prosumer router.
  - vetinari 3y ago
    The GP doesn't talk about a tiny prosumer router: > limit on their top of line stuff AFAIK, the limits are 64 VLANs for USG/UDM and 255 on US/USW. Not a tiny prosumer routers here.

kemotep 3y ago

This doesn’t answer the question about needing more than 50. Even if there are 20 departments, a development, testing/qa, and production server environment, phones, printers, 12 conference rooms, a dmz, an IoT, staff, and guest wifi, backups on their own vlan, a management vlan, and multiple vpns, you would still come under 50 with a few more to spare. If you have a network like this it might also behoove you to physically separate it out so guest infrastructure and production, and management interfaces are all on completely different devices and thus each network doesn’t need all vlans. Unifi doesn’t sell the highest quality of equipment that could necessarily support more complex environments in the first place but needing more than 50 vlans on one physical network sounds almost unsustainable.

lukeholder 3y ago
It also doesn’t answer why a company that has 50 vlans wants to buy a tiny prosumer router.
- vetinari 3y ago
  The GP doesn't talk about a tiny prosumer router: > limit on their top of line stuff AFAIK, the limits are 64 VLANs for USG/UDM and 255 on US/USW. Not a tiny prosumer routers here.