Hello, normally our shop uses two physical core(Core1 and Core2) switches in a HSRP configuration using PAgP between the two switches. Each of these switches has a redundant layer 3 link to devices further upstream in the network. If Core A fails, Core B can still route traffic upstream and vise versa. So far so good, everyone is happy.
Now they want me to do the same thing except they want it done using a stackwise configuration for both of these core switches. So Core1 and Core2 are in one logical switch configuration.
Knowing this, how do I keep my redundant links to the upstream devices if this is just one logical switch? I must be having a mind melt down, because I can't get my head around this.
Any help would be greatly appreciated.