What defines a two-tier spine-leaf topology?
- The spine tier can be implemented with Cisco Nexus 9500 switches connected to each other and to the leaf switches.
- Everything is two hops from everything else.
- The APIC controller manipulates the data path directly.
- The Cisco APICs and all other devices in the network physically attach to leaf switches.
Answers Explanation & Hints: In this two-tier topology, everything is one hop from everything else. The leaf switches (Cisco Nexus 9300) always attach to the spines (Cisco Nexus 9500), but never to each other. Similarly, the spine switches only attach to the leaf and core switches. The Cisco APICs and all other devices in the network physically attach to leaf switches. When compared to SDN, the APIC controller does not manipulate the data path directly.