3750 Etherchannel Cross-Stack with EMC VNX

[James Prosba]

We are configuring a new EMC VNX, and plan to use Etherchannel with our 3750x stack.  We would like to configure it for both additional bandwidth and for redundancy.  What is the best configuration to use?  Should we trunk the channel or use switchport mode access, and use channel-group on or protocol LACP (which state active or passive)?

[Reza Sharifi]

The EMC VNX supports LACP and it is recommended to use by EMC.

Have a look at this doc for mote info:

http://www.emc.com/collateral/software/technical-documentation/h8147-virtual-desktop-vnx-vmware-psg.pdf

As for the portchannel config, if you have all the EMC heads in one vlan then switchport mode access will be fine.

HTH