Quick question. If I have a current flat environment with analog phones and eventually implement VoIP phones, current best practice stipulates separating the voice & data VLAN traffic and placing them in different Subnets.
As such, I am looking to get a L3 switch to route these separate Subnets but my question is, should I have a distinct L3 switch for every area of the building which currently has it's own L2 switch? Do I need to route per switch or will one L3 suffice?
It looks like only one L3 switch is required according to this:
How To Configure InterVLAN Routing on Layer 3 Switches - Cisco Systems
Please note that this environment does not have Cisco/Adtran gear in place and as such the Router on a stick method won't work. In addition, the L3 Switch being considered is an HP A5120-24G.
HP: JE066A#ABA - HP A5120-24G EI Switch - Access switches - fixed port