Unrelated to the Communities, this topic has personally come up for me numerous times in the last several months and I thought it was important enough to share. I've attached a support statement that contains specifics to the supportability of the 7800 extension platform and Riverbed. Brocade and Riverbed worked together (for quite some time) to get this tested and certified. Now the reason I am posting this to the Data Center San Forum is this information did not make it into the Brocade Compatibility Matrix (which I've already raised and will be corrected). Until then, you may use the attached document as the official support statement from Brocade.