Borrowed with permission from Francis Guillier, Cisco technical marketing engineer (TME)
As far as my research goes,Nexus 5k supports dual-homing in vPC setupNexus 7k still does NOT support itSee link to where I found it: CLICK ME -Cisco Documentation
Okay hahaa this is just in, just last week June 18, 2015Cisco released this Nexus 7k firmware version: v7.2(0)D1(1) THIS NOW SUPPORTS DUAL-HOMING HAHA ^_^
Updated link for reference
link missing , so what is the final outcome...does 7k support dual home or not.
It's in the 7.2 release notes:http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/7_x/nx-os/release/notes/72_nx-os_release_note.html#pgfId-1174959
"FEX AA featuresFabric Extender (FEX) is a pass-through/mux device designed to provide top of rack or end of line connectivity for servers/hosts. Currently FEX can be connected to only one Cisco Nexus 7000 series switch. If the switch goes down, FEX loses connectivity to the network. Hence all the singly connected hosts via the FEX also lose connectivity to the network. To solve this problem, FEX can be connected to two Cisco Nexus 7000 series switches in Active-Standby mode or Active-Active mode (vPC). We choose the Active-Active solution because vPC provides seamless switchover and faster convergence in case of switch failure. Moreover, traffic is also sprayed across both switches providing full utilization of bandwidth."
Please reference this post. Broken link has been updated.
Nexus 5K Support Dual-homing