Migrate from physical separated to VLAN separated network

[ArjanA]

Hi,

I want to migrate from two physically seperated networks (students and staff) to one physical infrastructure that is seperated through VLANs. I am able to just connect the two infrastructures together, but this causes failures and risk of exposure of staff data to students.

The current switches do not have a VLAN configuration, so all ports are in VLAN 1 (Default_VLAN).

Is it possible to link one of the staff switches to a port on a 3500 that is untagged in VLAN 1100 (STAFF) and similtanously link a student switch to a port on the same 3500 that is untagged in VLAN2000 (STUDENT)?

I tried this, but the network stopped responding.

[AAPP Toledo]

Hi ArjanA,

One question.... Both lans (Staff & Student) have the same addressing?

Anyway I think the problem is that both lans (Staff & Student) have the same VLAN (VLAN 1 (Default_VLAN)) on respective switchs and this situation create a conflict whe you connect them to 3500's Switch.

And, it's important, that you configured the VLANs on all the switchs. For example:

3500 Switch (Core): You need to configure VLANS 1100 and 2000

Switch (Students): You need to configure VLAN2000
Switch (Staff): You need to configure VLAN1100

Greetings...