Two Uplinks / Ports 25 & Port 26 (ports on each side on a different VLAN/uplink) - SG200-26P

[doctor-dr]

Hello,

I currently have a Cisco SG200-26P that has 2 uplink ports coming into it (Ports 25 & 26). 

The goal is to create VLANs in a way that when you plug a cable on the left side of the switch, it connects to the port 25 uplink, and acquires an IP from the DHCP/network plugged into that port and when you plug a cable on any ports of the right side, it connects and receives an IP from the network uplink connected into port 26.

In other words, I am separating the switch into 2 different networks, so it can act as "2 switches", or simply a switch that has 2 uplink ports.

This is how it would work:

SG200-26P

Uplink: Port 25 (cable coming from a router that provides DHCP)

Anything connected to ports: 1-6 & 13-18 (left side ports of switch) would receive an IP from the uplink connected to port 25.

Uplink: Port 26 (cable coming from a router that provides DHCP)

Anything connected to ports: 7-12 & 19-24 (right side ports of switch) would receive an IP from the uplink connected to port 26.

Right now I was able to create a VLAN, exclude the ports on one side, and the functionality works, but once I plug both uplinks (ports 25 & 26), the 2nd port connected takes over, and all ports on the opposite side do not get an IP/connectivity.

PS: Both uplinks work fine if you connect the cable directly to the device, and they are on different subnets/networks altogether. 

Any help is appreciated.

[doctor-dr · Accepted solution]

I was able to resolve this without problems.

Unfortunately the SG200 series does not have CLI/SSH, so you have to do everything using the GUI (and be careful on when to save the configuration).

All I did was:

1- Reset to default settings

2- Create another VLAN(10)

3- Set all ports to "Access"

4- Set ports each VLAN as untagged, and the uplink port (25 or 26) as excluded and vice versa.

5- Saved configuration

6- Done. Easy as that.