NEXUS
Troubleshooting PortChannels and Trunking
http://www.cisco.com/en/US/products/ps5989/prod_troubleshooting_guide_chapter09186a008067a2da.html
Cisco nexus 7k commands
http://www.cisco.com/en/US/products/ps9402/prod_command_reference_list.html
Troubleshooting Nexus 7000
http://docwiki.cisco.com/wiki/Cisco_Nexus_7000_Series_NX-OS_Troubleshooting_Guide
VPC Concepts
http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9670/C07-572835-00_NX-
OS_vPC_DG.pdf
Click to access design_guide_c07-625857.pdf
VPC discussion forum
https://supportforums.cisco.com/thread/2101574
Nexus discussion on Cisco
https://supportforums.cisco.com/community/netpro/data-center/others?view=discussions&start=0
Nexus 7000 training
http://www.scribd.com/bijin_bharathan/d/50255868-Nexus-7000-Training-Docs
Troubleshooting VTP
http://www.cisco.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080890613.shtml#topic12
FCOE concepts : What is FCOE