I have two identical 5550 units with the same features and licenses, I want to implement failover between them, these are brand new and I am going to use them for the first time, I need some guidelines, I have the scenario as following
I have one Server farm, four VLANs, all the VLAN client are connected through Catalyst 3550 Layer 3 switch and this switch is connected to Catalyst 3750 layer 3 switch through one uplink, server farm switch is connected with Catalyst 3750 layer 3 switch.
I want to secure my all servers as all servers are on one VLAN named server farm, I want to secure server farm from inside and from outside as well.
Like three legs scenario, one inside, DMZ and outside.
What will be the diagram in this scenario, how can I make this scenario with failover.
Do I need layer 2 switch at inside, DMA and outside sides?
I will really appreciate if you can send the best practice diagram and configuration for my scenario with failover.