High Dual Stack Scale Profile on the -EX switches

[ralphcarter]

What is the trade-off here? By enabling this, what are the considerations or what does it reduce or eliminate from a resource standpoint?

[apubillo1]

You can find more information on the following link:

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/all/forwarding-scale-profiles/cisco-apic-forwarding-scale-profiles/m-overview-and-guidelines.html

[Robert Burns]

Ralph,

If you browse on your APIC to Operations > Capacity Dashboard > Leaf Capacity > Configure Profile (next to your respective switch) you'll see exactly how the TCAM gets reshuffled from a resource/capacity perspective.  Applying a "High Dual Stack" profile puts higher support on Endpoint & Routes and lower support for Multicast.  See the screenshot below.  
Note: Different Leaf models will have different scaling support #s.

Robert