References
“Cisco Nexus 9000 NX-OS Interfaces Configuration Guide, Release 10.2(x),” https://www.cisco.cSom/c/en/us/td/docs/dcn/nx-os/nexus9000/102x/configuration/interfaces/cisco-nexus-9000-nx-os-interfaces-configuration-guide-102x.html
“Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide 8.x,” https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/interfaces/config/cisco_nexus7000_interfaces_config_guide_8x.html
“Understand Virtual Port Channel (vPC) Enhancements,” https://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/nx-os-software/217274-understand-virtual-port-channel-vpc-en.html
“Supported Topologies for Routing over Virtual Port Channel on Nexus Platforms,” https://www.cisco.com/c/en/us/support/docs/ip/ip-routing/118997-technote-nexus-00.html
“Best Practices for Virtual Port Channels (vPC) on Cisco Nexus 7000 Series Switches,” https://www.cisco.com/c/dam/en/us/td/docs/switches/datacenter/sw/design/vpc_design/vpc_best_practices_design_guide.pdf
“Nexus 2000 Fabric Extenders Supported/Unsupported Topologies,” https://www.cisco.com/c/en/us/support/docs/switches/nexus-2000-series-fabric-extenders/200363-nexus-2000-fabric-extenders-supported-un.html
Relevant Cisco Live sessions: http://www.ciscolive.com