Attached topology. All routers interfaces are part of the same /24 & area 0. 1.1.1.1/32 is adv. from both R1 & R4. Is there a way I can influence R5 to prefer R1 over R4? 

Per the Cisco doc, it states not to configure PVLAN on an interface with Voice but almost all enterprises will have user & voice on the same interface so how can I implement pvlan?what would be the equivalent pvlan config for this? user/phone interfa...

What is the significance/impact of using switchport protected in Trunk ports that connect two switches? For eg.SW1int gi0/1-->Access VLAN 10-->switchport protected-->Host Aint gi0/24-->Switchport mode Trunk-->switchport protected (des link to SW2)***...

I am testing a PVLAN scenario in a lab environment. The goal is to implement it in production eventually. Please see attached topology I am working on. I read when implementing PVLAN in a ROAS situation we have to implement a Private VLAN trunk which...