This may be a dumb question, but one that has been on my mind for a while. I'm currently evaluating our network for a redesign. Its currently a collapsed core (end to end) vVLAN network, where most of our SVI's reside on our core router. I'm wanting to push that out to our distribution layer devices to decrease the routing load and set us up for other things in the future (redundancy, etc).
While working on this I came up with an idea, and I want to get some feed back on it. Would it be possible to use the same VLAN ID in multiple parts of the network, but separate them at layer 3 and have each VLAN ID instance use a separate subnet. For example, lets say I have 3 network devices in my network, three multilayer switches, A, B, and C, connected in series (A>B>C). Switch A and C have VLANs 1 and 3 on them, but the connection between A>B and C>B only carries VLAN 1. Could I then put an SVI for VLAN3 in one subnet, 192.168.0.0/24, and another VLAN3 SVI on switch C, 10.0.0.0/24.
VLAN3(192.168.0.254/24)----------SwitchA--------L3Network---------------------SwitchB------------------VLAN1-----------------------SwitchC---Vlan3(10.0.0.254/24)
Outside of possible confusion of what subnet is in which VLAN and where, what other drawbacks could there be? If a better diagram would help I can make one as well.
